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Eric S Fraga 04-27-2011 09:23 AM

suspend no longer works after upgrading something: Samsung N220

I was hoping somebody could suggest where to start looking to try to
sort out a problem with my laptop. I have a Samsung N220 which has been
running Debian testing+unstable for over a year now. I have been able
to suspend (not hibernate) usually successfully most of this time.
However, all of a sudden, last week, suspend is no longer "available".
I have upgraded something that has removed this capability.

If I hit the "sleep" button, I get a dialogue box saying "Failed to
suspend [...] Cannot suspend."

Can somebody suggest what might have caused me to lose the suspend

I am running kernel 2.6.38-2-686.

The acpi related packages, all up to date re: testing, installed on this
system are as follows:

--8<---------------cut here---------------start------------->8---
$ dpkg --list '*acpi*'
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name Version Description
ii acpi 1.5-2 displays information on ACPI devices
ii acpi-fakekey 0.138-9 tool to generate fake key events
ii acpi-support 0.138-9 scripts for handling many ACPI events
ii acpi-support-base 0.138-9 scripts for handling base ACPI events such as the
ii acpid 1:2.0.8-4 Advanced Configuration and Power Interface event d
ii acpitail 0.1-3 Show ACPI information in a tail-like style
ii acpitool 0.5.1-2 command line ACPI client
ii kacpimon 1:2.0.8-4 Kernel ACPI Event Monitor
ii libacpi0 0.2-4 general purpose library for ACPI
ii yacpi 3.0-2 ncurses based acpi monitor for text mode
--8<---------------cut here---------------end--------------->8---

I am not sure what other packages to look at or whether I need to
configure something differently for acpi. The only options I have with,
for instance, gnome-power-manager, are shutdown and restart.

I see nothing specific in any of the log files, although I must admit
that I am not sure what I should be looking for. For instance, I see

--8<---------------cut here---------------start------------->8---
[ 0.222695] pnp: PnP ACPI: found 9 devices
[ 0.222700] ACPI: ACPI bus type pnp unregistered
[ 0.222707] PnPBIOS: Disabled by ACPI PNP
[ 1.636206] ACPI: Lid Switch [LID0]
[ 1.690691] ACPI: Power Button [PWRB]
[ 1.690953] ACPI: Sleep Button [SLPB]
[ 1.691172] ACPI: Power Button [PWRF]
[ 1.748239] ACPI: Thermal Zone [TZ00] (24 C)
--8<---------------cut here---------------end--------------->8---

in the dmesg output. There are some error messages which I do not

--8<---------------cut here---------------start------------->8---
[ 0.203219] ACPI Error: [CAPB] Namespace lookup failure, AE_ALREADY_EXISTS (20110112/dsfield-143)
[ 0.203235] ACPI Error: Method parse/execution failed [\_SB_.PCI0._OSC] (Node f682ee88), AE_ALREADY_EXISTS (20110112/psparse-536)
[ 0.203261] pci0000:00: Requesting ACPI _OSC control (0x1d)
[ 0.203392] ACPI Error: [CAPB] Namespace lookup failure, AE_ALREADY_EXISTS (20110112/dsfield-143)
[ 0.203406] ACPI Error: Method parse/execution failed [\_SB_.PCI0._OSC] (Node f682ee88), AE_ALREADY_EXISTS (20110112/psparse-536)
--8<---------------cut here---------------end--------------->8---

Any suggestions very welcome indeed!


: Eric S Fraga (GnuPG: 0xC89193D8FFFCF67D) in Emacs + No Gnus v0.16

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