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Old 10-31-2010, 05:19 PM
Fernando Tarlá Cardoso Lemos
 
Default Bug#602009: linux-image-2.6.36-trunk-amd64: i915.powersave option is not respected in 2.6.36

Package: linux-2.6
Version: 2.6.36-1~experimental.1
Severity: normal


Hi, due to bug #580601, I have to use i915.powersave=0 in /etc/modprobe.d.
This worked fine from 2.6.32 to 2.6.35 with all versions I tested from
experimental. However, powersave is always 1 with 2.6.36 (which causes the
problems described in the aforementioned bug report).

Compare the output of the following commands when booted in 2.6.35:

fernando@vostro:~$ sudo cat /sys/module/i915/parameters/powersave
0
fernando@vostro:~$ grep i915 /etc/modprobe.d/*
/etc/modprobe.d/i915-kms.confptions i915 modeset=1
/etc/modprobe.d/local.confptions i915 powersave=0
fernando@vostro:~$

To the output of the same commands when booted in 2.6.36:

fernando@vostro:~$ uname -a
Linux vostro 2.6.36-trunk-amd64 #1 SMP Wed Oct 27 14:28:29 UTC 2010 x86_64
GNU/Linux
fernando@vostro:~$ sudo cat /sys/module/i915/parameters/powersave
1
fernando@vostro:~$ grep i915 /etc/modprobe.d/*
/etc/modprobe.d/i915-kms.confptions i915 modeset=1
/etc/modprobe.d/local.confptions i915 powersave=0
fernando@vostro:~$

I can reproduce it every time, it's always 1 with 2.6.36.

I also have the following two options set in /etc/modprobe.d/local.conf:

options b43 pio=1
options snd-hda-intel model=dell-vostro

And those options are respected correctly (they work as they should and
/sys/modules/{b43,snd_hda_intel}/parameters show the settings I've defined),
so it looks like it's a problem with i915 only.

I've used that option with kernels 2.6.33, 34 and 35, and it has always worked
fine previously, so the bug was probably introduced in 2.6.36.

Please let me know if you need any more info.

-- Package-specific info:
** Version:
Linux version 2.6.36-trunk-amd64 (Debian 2.6.36-1~experimental.1) (max@stro.at) (gcc version 4.4.5 (Debian 4.4.5-5) ) #1 SMP Wed Oct 27 14:28:29 UTC 2010

** Command line:
BOOT_IMAGE=/boot/vmlinuz-2.6.36-trunk-amd64 root=UUID=745ddfbd-1368-4bcb-b307-efbe218c195a ro quiet splash

** Not tainted

** Kernel log:
[ 2.204430] USB Mass Storage support registered.
[ 2.308010] usb 2-5: new high speed USB device using ehci_hcd and address 3
[ 2.515208] usb 2-5: New USB device found, idVendor=064e, idProduct=8100
[ 2.515211] usb 2-5: New USB device strings: Mfr=2, Product=1, SerialNumber=0
[ 2.515214] usb 2-5: Product: Integrated_Webcam_2M
[ 2.515215] usb 2-5: Manufacturer: SuYin
[ 2.808022] ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
[ 2.825560] ata2.00: ATAPI: TSSTcorp DVD+/-RW TS-L633C, DW40, max UDMA/100
[ 2.825563] ata2.00: applying bridge limits
[ 2.843412] ata2.00: configured for UDMA/100
[ 2.857791] scsi 1:0:0:0: CD-ROM TSSTcorp DVD+-RW TS-L633C DW40 PQ: 0 ANSI: 5
[ 3.176016] ata5: SATA link down (SStatus 0 SControl 300)
[ 3.204602] scsi 6:0:0:0: Direct-Access WD 1200BEV External 1.75 PQ: 0 ANSI: 4
[ 3.512017] ata6: SATA link down (SStatus 0 SControl 300)
[ 3.543564] sd 0:0:0:0: [sda] 312581808 512-byte logical blocks: (160 GB/149 GiB)
[ 3.543610] sd 0:0:0:0: [sda] Write Protect is off
[ 3.543613] sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
[ 3.543632] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[ 3.552618] sr0: scsi3-mmc drive: 24x/24x writer dvd-ram cd/rw xa/form2 cdda tray
[ 3.552621] cdrom: Uniform CD-ROM driver Revision: 3.20
[ 3.552871] sr 1:0:0:0: Attached scsi CD-ROM sr0
[ 3.553593] sd 6:0:0:0: [sdb] 234441648 512-byte logical blocks: (120 GB/111 GiB)
[ 3.554088] sd 6:0:0:0: [sdb] Write Protect is off
[ 3.554090] sd 6:0:0:0: [sdb] Mode Sense: 23 00 00 00
[ 3.554092] sd 6:0:0:0: [sdb] Assuming drive cache: write through
[ 3.555213] sd 6:0:0:0: [sdb] Assuming drive cache: write through
[ 3.631910] sda: sda1 < sda5 sda6 sda7 >
[ 3.632443] sd 0:0:0:0: [sda] Attached SCSI disk
[ 4.777467] sdb: unknown partition table
[ 4.778973] sd 6:0:0:0: [sdb] Assuming drive cache: write through
[ 4.779010] sd 6:0:0:0: [sdb] Attached SCSI disk
[ 4.790691] sd 0:0:0:0: Attached scsi generic sg0 type 0
[ 4.791083] sr 1:0:0:0: Attached scsi generic sg1 type 5
[ 4.791472] sd 6:0:0:0: Attached scsi generic sg2 type 0
[ 5.585592] PM: Starting manual resume from disk
[ 5.585595] PM: Resume from partition 8:7
[ 5.585596] PM: Checking hibernation image.
[ 5.585735] PM: Error -22 checking image file
[ 5.585736] PM: Resume from disk failed.
[ 5.640023] EXT3-fs: barriers not enabled
[ 5.652029] kjournald starting. Commit interval 5 seconds
[ 5.652060] EXT3-fs (sda5): mounted filesystem with ordered data mode
[ 7.044090] udev[409]: starting version 164
[ 7.463465] ACPI: acpi_idle registered with cpuidle
[ 7.481376] ACPI: AC Adapter [AC] (on-line)
[ 7.511206] pci_hotplug: PCI Hot Plug PCI Core version: 0.5
[ 7.523978] shpchp: Standard Hot Plug PCI Controller Driver version: 0.4
[ 7.578826] Monitor-Mwait will be used to enter C-1 state
[ 7.589194] Monitor-Mwait will be used to enter C-2 state
[ 7.595248] Monitor-Mwait will be used to enter C-3 state
[ 7.595263] Marking TSC unstable due to TSC halts in idle
[ 7.604920] Switching to clocksource hpet
[ 7.673867] ACPI: Battery Slot [BAT0] (battery present)
[ 7.674007] ACPI: WMI: Mapper loaded
[ 7.803922] i801_smbus 0000:00:1f.3: PCI INT B -> GSI 17 (level, low) -> IRQ 17
[ 7.868248] input: Dell WMI hotkeys as /devices/virtual/input/input5
[ 7.893771] dcdbas dcdbas: Dell Systems Management Base Driver (version 5.6.0-3.2)
[ 7.999580] input: PS/2 Mouse as /devices/platform/i8042/serio1/input/input6
[ 8.002287] input: PC Speaker as /devices/platform/pcspkr/input/input7
[ 8.017448] input: AlpsPS/2 ALPS GlidePoint as /devices/platform/i8042/serio1/input/input8
[ 8.243324] Linux video capture interface: v2.00
[ 8.426342] uvcvideo: Found UVC 1.00 device Integrated_Webcam_2M (064e:8100)
[ 8.439645] input: Integrated_Webcam_2M as /devices/pci0000:00/0000:00:1d.7/usb2/2-5/2-5:1.0/input/input9
[ 8.439695] usbcore: registered new interface driver uvcvideo
[ 8.439697] USB Video Class driver (v0.1.0)
[ 8.465927] cfg80211: Calling CRDA to update world regulatory domain
[ 8.805207] HDA Intel 0000:00:1b.0: PCI INT A -> GSI 21 (level, low) -> IRQ 21
[ 8.805274] alloc irq_desc for 44 on node -1
[ 8.805277] alloc kstat_irqs on node -1
[ 8.805291] HDA Intel 0000:00:1b.0: irq 44 for MSI/MSI-X
[ 8.805320] HDA Intel 0000:00:1b.0: setting latency timer to 64
[ 8.900125] input: HDA Digital PCBeep as /devices/pci0000:00/0000:00:1b.0/input/input10
[ 9.125137] b43-phy0: Broadcom 4312 WLAN found (core revision 15)
[ 9.404721] phy0: Selected rate control algorithm 'minstrel_ht'
[ 9.405192] Registered led device: b43-phy0::tx
[ 9.405209] Registered led device: b43-phy0::rx
[ 9.405225] Registered led device: b43-phy0::radio
[ 9.405282] Broadcom 43xx driver loaded [ Features: PMLS, Firmware-ID: FW13 ]
[ 10.658459] Adding 3905532k swap on /dev/sda7. Priority:-1 extents:1 across:3905532k
[ 10.966171] EXT3-fs (sda5): using internal journal
[ 11.118796] loop: module loaded
[ 11.801031] EXT3-fs: barriers not enabled
[ 11.801199] kjournald starting. Commit interval 5 seconds
[ 11.801472] EXT3-fs (sda6): using internal journal
[ 11.801476] EXT3-fs (sda6): mounted filesystem with ordered data mode
[ 12.399835] ip_tables: (C) 2000-2006 Netfilter Core Team
[ 12.456408] nf_conntrack version 0.5.0 (16384 buckets, 65536 max)
[ 14.822452] input: ACPI Virtual Keyboard Device as /devices/virtual/input/input11
[ 23.748244] b43-phy0: Loading firmware version 478.104 (2008-07-01 00:50:23)
[ 29.285163] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 29.287639] r8169 0000:09:00.0: eth0: link down
[ 29.287893] ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 32.112892] wlan0: authenticate with 00:21:91:34:bb:6b (try 1)
[ 32.115557] wlan0: authenticated
[ 32.115569] wlan0: associate with 00:21:91:34:bb:6b (try 1)
[ 32.122417] wlan0: RX AssocResp from 00:21:91:34:bb:6b (capab=0x431 status=0 aid=1)
[ 32.122420] wlan0: associated
[ 32.129114] ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 42.304045] wlan0: no IPv6 routers present
[ 142.756725] lo: Disabled Privacy Extensions

** Model information
sys_vendor: Dell Inc.
product_name: Vostro 1014
product_version:
chassis_vendor: Dell Inc.
chassis_version:
bios_vendor: Dell Inc.
bios_version: A02
board_vendor: Dell Inc.
board_name:
board_version:

** Loaded modules:
Module Size Used by
acpi_cpufreq 5335 1
mperf 1259 1 acpi_cpufreq
cpufreq_conservative 7646 0
cpufreq_stats 2633 0
cpufreq_powersave 942 0
cpufreq_userspace 2032 0
uinput 6910 1
xt_tcpudp 2311 1
nf_conntrack_ipv4 9777 1
nf_defrag_ipv4 1259 1 nf_conntrack_ipv4
xt_state 1183 1
nf_conntrack 47379 2 nf_conntrack_ipv4,xt_state
iptable_filter 1376 1
ip_tables 14194 1 iptable_filter
x_tables 14317 4 xt_tcpudp,xt_state,iptable_filter,ip_tables
loop 12602 0
firewire_sbp2 11439 0
arc4 1330 2
ecb 1881 2
b43 149211 0
rng_core 3118 1 b43
mac80211 162471 1 b43
snd_hda_codec_conexant 29030 1
snd_hda_intel 19642 0
snd_hda_codec 66997 2 snd_hda_codec_conexant,snd_hda_intel
tpm_tis 7045 0
tpm 9635 1 tpm_tis
snd_hwdep 5468 1 snd_hda_codec
cfg80211 116839 2 b43,mac80211
uvcvideo 51487 0
tpm_bios 4661 1 tpm
snd_pcm 61725 2 snd_hda_intel,snd_hda_codec
joydev 9144 0
videodev 53302 1 uvcvideo
snd_seq 42454 0
dell_laptop 5440 0
snd_timer 16288 2 snd_pcm,snd_seq
snd_seq_device 4531 1 snd_seq
evdev 7330 16
rfkill 13886 2 cfg80211,dell_laptop
snd 47020 8 snd_hda_codec_conexant,snd_hda_intel,snd_hda_codec ,snd_hwdep,snd_pcm,snd_seq,snd_timer,snd_seq_devic e
v4l1_compat 11622 2 uvcvideo,videodev
pcspkr 1739 0
soundcore 4598 1 snd
v4l2_compat_ioctl32 9011 1 videodev
dcdbas 4928 1 dell_laptop
dell_wmi 2595 0
snd_page_alloc 6305 2 snd_hda_intel,snd_pcm
i2c_i801 7718 0
serio_raw 3742 0
psmouse 44949 0
wmi 7209 1 dell_wmi
shpchp 21955 0
pci_hotplug 19711 1 shpchp
battery 5566 0
ac 2232 0
processor 25907 2 acpi_cpufreq
ext3 106518 2
jbd 36840 1 ext3
mbcache 5088 1 ext3
sg 19079 0
sr_mod 12887 0
sd_mod 27506 4
cdrom 29785 1 sr_mod
crc_t10dif 1300 1 sd_mod
usb_storage 39287 0
i915 272515 3
ahci 19473 3
libahci 15971 1 ahci
drm_kms_helper 21445 1 i915
libata 134058 2 ahci,libahci
uhci_hcd 18266 0
ehci_hcd 31054 0
drm 155412 3 i915,drm_kms_helper
ssb 37506 1 b43
sdhci_pci 6049 0
sdhci 14142 1 sdhci_pci
i2c_algo_bit 4105 1 i915
firewire_ohci 21898 0
scsi_mod 154308 6 firewire_sbp2,sg,sr_mod,sd_mod,usb_storage,libata
usbcore 118280 5 uvcvideo,usb_storage,uhci_hcd,ehci_hcd
i2c_core 16346 6 videodev,i2c_i801,i915,drm_kms_helper,drm,i2c_algo _bit
pcmcia 28785 2 b43,ssb
r8169 28581 0
video 18617 1 i915
mmc_core 52488 3 b43,ssb,sdhci
thermal 12014 0
led_class 2187 2 b43,sdhci
button 4706 1 i915
mii 3266 1 r8169
firewire_core 42193 2 firewire_sbp2,firewire_ohci
crc_itu_t 1331 1 firewire_core
pcmcia_core 10413 1 pcmcia
thermal_sys 11764 3 processor,video,thermal
output 1748 1 video
nls_base 6369 1 usbcore

** PCI devices:
00:00.0 Host bridge [0600]: Intel Corporation Mobile 4 Series Chipset Memory Controller Hub [8086:2a40] (rev 07)
Subsystem: Dell Device [1028:0401]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ >SERR- <PERR- INTx-
Latency: 0
Capabilities: <access denied>
Kernel driver in use: agpgart-intel

00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller [8086:2a42] (rev 07) (prog-if 00 [VGA controller])
Subsystem: Dell Device [1028:0401]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 43
Region 0: Memory at f6c00000 (64-bit, non-prefetchable) [size=4M]
Region 2: Memory at e0000000 (64-bit, prefetchable) [size=256M]
Region 4: I/O ports at efe8 [size=8]
Expansion ROM at <unassigned> [disabled]
Capabilities: <access denied>
Kernel driver in use: i915

00:02.1 Display controller [0380]: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller [8086:2a43] (rev 07)
Subsystem: Dell Device [1028:0401]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Region 0: Memory at f6b00000 (64-bit, non-prefetchable) [size=1M]
Capabilities: <access denied>

00:1a.0 USB Controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #4 [8086:2937] (rev 03) (prog-if 00 [UHCI])
Subsystem: Dell Device [1028:0401]
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 20
Region 4: I/O ports at 6f60 [size=32]
Capabilities: <access denied>
Kernel driver in use: uhci_hcd

00:1a.1 USB Controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #5 [8086:2938] (rev 03) (prog-if 00 [UHCI])
Subsystem: Dell Device [1028:0401]
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin B routed to IRQ 21
Region 4: I/O ports at 6f80 [size=32]
Capabilities: <access denied>
Kernel driver in use: uhci_hcd

00:1a.2 USB Controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #6 [8086:2939] (rev 03) (prog-if 00 [UHCI])
Subsystem: Dell Device [1028:0401]
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin C routed to IRQ 22
Region 4: I/O ports at 6fa0 [size=32]
Capabilities: <access denied>
Kernel driver in use: uhci_hcd

00:1a.7 USB Controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #2 [8086:293c] (rev 03) (prog-if 20 [EHCI])
Subsystem: Dell Device [1028:0401]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin C routed to IRQ 22
Region 0: Memory at fed1c400 (32-bit, non-prefetchable) [size=1K]
Capabilities: <access denied>
Kernel driver in use: ehci_hcd

00:1b.0 Audio device [0403]: Intel Corporation 82801I (ICH9 Family) HD Audio Controller [8086:293e] (rev 03)
Subsystem: Dell Device [1028:0401]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 44
Region 0: Memory at f6afc000 (64-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: HDA Intel

00:1c.0 PCI bridge [0604]: Intel Corporation 82801I (ICH9 Family) PCI Express Port 1 [8086:2940] (rev 03) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Bus: primary=00, secondary=0b, subordinate=0b, sec-latency=0
I/O behind bridge: 00002000-00002fff
Memory behind bridge: 80000000-801fffff
Prefetchable memory behind bridge: 0000000080200000-00000000803fffff
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: <access denied>

00:1c.1 PCI bridge [0604]: Intel Corporation 82801I (ICH9 Family) PCI Express Port 2 [8086:2942] (rev 03) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Bus: primary=00, secondary=0c, subordinate=0c, sec-latency=0
I/O behind bridge: 00003000-00003fff
Memory behind bridge: f6900000-f69fffff
Prefetchable memory behind bridge: 0000000080400000-00000000805fffff
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: <access denied>

00:1c.3 PCI bridge [0604]: Intel Corporation 82801I (ICH9 Family) PCI Express Port 4 [8086:2946] (rev 03) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Bus: primary=00, secondary=0d, subordinate=0e, sec-latency=0
I/O behind bridge: 0000d000-0000dfff
Memory behind bridge: f6600000-f68fffff
Prefetchable memory behind bridge: 00000000f0000000-00000000f01fffff
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: <access denied>

00:1c.4 PCI bridge [0604]: Intel Corporation 82801I (ICH9 Family) PCI Express Port 5 [8086:2948] (rev 03) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Bus: primary=00, secondary=0f, subordinate=0f, sec-latency=0
I/O behind bridge: 00004000-00004fff
Memory behind bridge: f6500000-f65fffff
Prefetchable memory behind bridge: 0000000080600000-00000000807fffff
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: <access denied>

00:1c.5 PCI bridge [0604]: Intel Corporation 82801I (ICH9 Family) PCI Express Port 6 [8086:294a] (rev 03) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Bus: primary=00, secondary=09, subordinate=09, sec-latency=0
I/O behind bridge: 0000c000-0000cfff
Memory behind bridge: f6400000-f64fffff
Prefetchable memory behind bridge: 00000000f0200000-00000000f02fffff
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: <access denied>

00:1d.0 USB Controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #1 [8086:2934] (rev 03) (prog-if 00 [UHCI])
Subsystem: Dell Device [1028:0401]
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 20
Region 4: I/O ports at 6f00 [size=32]
Capabilities: <access denied>
Kernel driver in use: uhci_hcd

00:1d.1 USB Controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #2 [8086:2935] (rev 03) (prog-if 00 [UHCI])
Subsystem: Dell Device [1028:0401]
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin B routed to IRQ 21
Region 4: I/O ports at 6f20 [size=32]
Capabilities: <access denied>
Kernel driver in use: uhci_hcd

00:1d.2 USB Controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #3 [8086:2936] (rev 03) (prog-if 00 [UHCI])
Subsystem: Dell Device [1028:0401]
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin C routed to IRQ 22
Region 4: I/O ports at 6f40 [size=32]
Capabilities: <access denied>
Kernel driver in use: uhci_hcd

00:1d.7 USB Controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #1 [8086:293a] (rev 03) (prog-if 20 [EHCI])
Subsystem: Dell Device [1028:0401]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 20
Region 0: Memory at fed1c000 (32-bit, non-prefetchable) [size=1K]
Capabilities: <access denied>
Kernel driver in use: ehci_hcd

00:1e.0 PCI bridge [0604]: Intel Corporation 82801 Mobile PCI Bridge [8086:2448] (rev 93) (prog-if 01 [Subtractive decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Bus: primary=00, secondary=02, subordinate=02, sec-latency=32
Secondary status: 66MHz- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: <access denied>

00:1f.0 ISA bridge [0601]: Intel Corporation ICH9M LPC Interface Controller [8086:2919] (rev 03)
Subsystem: Dell Device [1028:0401]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Capabilities: <access denied>

00:1f.2 SATA controller [0106]: Intel Corporation ICH9M/M-E SATA AHCI Controller [8086:2929] (rev 03) (prog-if 01 [AHCI 1.0])
Subsystem: Dell Device [1028:0401]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin B routed to IRQ 42
Region 0: I/O ports at 6e70 [size=8]
Region 1: I/O ports at 6e78 [size=4]
Region 2: I/O ports at 6e80 [size=8]
Region 3: I/O ports at 6e88 [size=4]
Region 4: I/O ports at 6ea0 [size=32]
Region 5: Memory at fed1c800 (32-bit, non-prefetchable) [size=2K]
Capabilities: <access denied>
Kernel driver in use: ahci

00:1f.3 SMBus [0c05]: Intel Corporation 82801I (ICH9 Family) SMBus Controller [8086:2930] (rev 03)
Subsystem: Dell Device [1028:0401]
Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Interrupt: pin B routed to IRQ 17
Region 0: Memory at f6afbf00 (64-bit, non-prefetchable) [size=256]
Region 4: I/O ports at 1100 [size=32]
Kernel driver in use: i801_smbus

09:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller [10ec:8168] (rev 03)
Subsystem: Dell Device [1028:0401]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 40
Region 0: I/O ports at ce00 [size=256]
Region 2: Memory at f0204000 (64-bit, prefetchable) [size=4K]
Region 4: Memory at f0200000 (64-bit, prefetchable) [size=16K]
[virtual] Expansion ROM at f0220000 [disabled] [size=128K]
Capabilities: <access denied>
Kernel driver in use: r8169

0c:00.0 Network controller [0280]: Broadcom Corporation BCM4312 802.11b/g LP-PHY [14e4:4315] (rev 01)
Subsystem: Dell Wireless 1397 WLAN Mini-Card [1028:000c]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 17
Region 0: Memory at f69fc000 (64-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: b43-pci-bridge

0f:00.0 SD Host controller [0805]: Ricoh Co Ltd Device [1180:e822] (rev 01)
Subsystem: Dell Device [1028:0401]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 16
Region 0: Memory at f65ff600 (32-bit, non-prefetchable) [size=256]
Capabilities: <access denied>
Kernel driver in use: sdhci-pci

0f:00.1 System peripheral [0880]: Ricoh Co Ltd Device [1180:e230] (rev 01)
Subsystem: Dell Device [1028:0401]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin B routed to IRQ 11
Region 0: Memory at f65ff700 (32-bit, non-prefetchable) [size=256]
Capabilities: <access denied>

0f:00.3 FireWire (IEEE 1394) [0c00]: Ricoh Co Ltd Device [1180:e832] (rev 01) (prog-if 10 [OHCI])
Subsystem: Dell Device [1028:0401]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin D routed to IRQ 41
Region 0: Memory at f65ff800 (32-bit, non-prefetchable) [size=2K]
Capabilities: <access denied>
Kernel driver in use: firewire_ohci


** USB devices:
not available


-- System Information:
Debian Release: squeeze/sid
APT prefers unstable
APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.36-trunk-amd64 (SMP w/1 CPU core)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages linux-image-2.6.36-trunk-amd64 depends on:
ii debconf [debconf 1.5.36 Debian configuration management sy
ii initramfs-tools 0.98.5 tools for generating an initramfs
ii linux-base 2.6.36-1~experimental.1 Linux image base package
ii module-init-tool 3.12-1 tools for managing Linux kernel mo

Versions of packages linux-image-2.6.36-trunk-amd64 recommends:
pn firmware-linux-free <none> (no description available)

Versions of packages linux-image-2.6.36-trunk-amd64 suggests:
pn grub | lilo <none> (no description available)
pn linux-doc-2.6.36 <none> (no description available)

Versions of packages linux-image-2.6.36-trunk-amd64 is related to:
pn firmware-bnx2 <none> (no description available)
pn firmware-bnx2x <none> (no description available)
pn firmware-ipw2x00 <none> (no description available)
pn firmware-ivtv <none> (no description available)
pn firmware-iwlwifi <none> (no description available)
pn firmware-linux <none> (no description available)
pn firmware-linux-nonfree <none> (no description available)
pn firmware-qlogic <none> (no description available)
ii firmware-ralink 0.27 Binary firmware for Ralink wireles
pn xen-hypervisor <none> (no description available)

-- debconf information:
* linux-image-2.6.36-trunk-amd64/postinst/missing-firmware-2.6.36-trunk-amd64:
linux-image-2.6.36-trunk-amd64/prerm/removing-running-kernel-2.6.36-trunk-amd64: true
linux-image-2.6.36-trunk-amd64/postinst/ignoring-do-bootloader-2.6.36-trunk-amd64:
linux-image-2.6.36-trunk-amd64/postinst/depmod-error-initrd-2.6.36-trunk-amd64: false



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Archive: 20101031181957.1729.77789.reportbug@vostro.localdo main">http://lists.debian.org/20101031181957.1729.77789.reportbug@vostro.localdo main
 
Old 11-02-2010, 12:02 AM
Ben Hutchings
 
Default Bug#602009: linux-image-2.6.36-trunk-amd64: i915.powersave option is not respected in 2.6.36

On Sun, 2010-10-31 at 16:19 -0200, Fernando Tarlá Cardoso Lemos wrote:
> Package: linux-2.6
> Version: 2.6.36-1~experimental.1
> Severity: normal
>
>
> Hi, due to bug #580601, I have to use i915.powersave=0 in /etc/modprobe.d.
> This worked fine from 2.6.32 to 2.6.35 with all versions I tested from
> experimental. However, powersave is always 1 with 2.6.36 (which causes the
> problems described in the aforementioned bug report).
[...]

Please report this upstream on <https://bugs.freedesktop.org> under
product 'DRI', component 'DRM/Intel'. Let us know the bug number or URL
so we can track it.

Also, please comment on
<http://bugs.freedesktop.org/show_bug.cgi?id=27589> (same as #580601)
that that bug is still present in 2.6.36, and add yourself to the cc
list so you can answer questions from the upstream maintainers.

Ben.

--
Ben Hutchings
Once a job is fouled up, anything done to improve it makes it worse.
 
Old 11-02-2010, 02:10 AM
Fernando Lemos
 
Default Bug#602009: linux-image-2.6.36-trunk-amd64: i915.powersave option is not respected in 2.6.36

Hi, Ben

2010/11/1 Ben Hutchings <ben@decadent.org.uk>:
> Please report this upstream on <https://bugs.freedesktop.org> under
> product 'DRI', component 'DRM/Intel'. *Let us know the bug number or URL
> so we can track it.

Thanks for your prompt response. Done, it's bug #31311:

https://bugs.freedesktop.org/show_bug.cgi?id=31311

> Also, please comment on
> <http://bugs.freedesktop.org/show_bug.cgi?id=27589> (same as #580601)
> that that bug is still present in 2.6.36, and add yourself to the cc
> list so you can answer questions from the upstream maintainers.

Done and done.

Regards,



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Old 11-02-2010, 04:52 PM
Fernando Lemos
 
Default Bug#602009: linux-image-2.6.36-trunk-amd64: i915.powersave option is not respected in 2.6.36

Hello,

On Tue, Nov 2, 2010 at 1:10 AM, Fernando Lemos <fernandotcl@gmail.com> wrote:
> Thanks for your prompt response. Done, it's bug #31311:
>
> https://bugs.freedesktop.org/show_bug.cgi?id=31311

Chris Wilson's reply shed some light on this and I now understand
what's going on. I commented up i915.powersave=0 to test if #580601
was gone in 2.6.36, and that made into the initrd, as I found out
after examining it. Running update-initramfs -k all -u solved the
issue.

In 2.6.36, as Chris Wilson stated,
/sys/modules/i915/parameters/powersave is 0400. I'm led to believe
that at some point in initialization, after the root filesystem is
mounted, modprobe goes over /etc/modprobe.d again to reset the
options. This might be why leaving i915.powersave=0 commented out in
the initrd worked before 2.6.36. If this is the case, then it might be
nice to have the commit mentioned in the f.d.o bug report backported,
perhaps. It could also be that my other initrds simply didn't have
that option commented out.

Anyways, the issue is now solved for me:

fernando@vostro:~$ sudo cat /sys/module/i915/parameters/powersave
0
fernando@vostro:~$ uname -a
Linux vostro 2.6.36-trunk-amd64 #1 SMP Wed Oct 27 14:28:29 UTC 2010
x86_64 GNU/Linux
fernando@vostro:~$

Please feel free to close/archive/invalidate this bug report. Sorry
for any inconvenience and thanks for your time.

Regards,



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