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Old 08-16-2011, 07:19 AM
Paul Menzel
 
Default Bug#637974: linux-2.6: GDM beeps for Linux kernel versions >=2.6.33

Package: linux-2.6
Version: 2.6.33-2-686
Severity: normal

Dear Thomas and dear Debian folks,


I am sorry to submit another report to Debian’s Linux kernel package.

I just picked a version number for the metadata found with a search
engine and containing 2.6.33.

With `linux-image-2.6.32-5-amd64` when GDM starts or the system shuts
down I do not hear any beep from the PC speaker.

$ dpkg -S /etc/modprobe.d/alsa-base-blacklist.conf
alsa-base: /etc/modprobe.d/alsa-base-blacklist.conf
$ LANG=C dpkg -l alsa-base
[…]
ii alsa-base 1.0.23+dfsg-4 ALSA driver configuration files
$ LANG=C grep pc /etc/modprobe.d/alsa-base-blacklist.conf
# Comment this entry in order to load snd-pcsp driver

$ uname -a
Linux joe 2.6.32-5-amd64 #1 SMP Tue Mar 8 22:49:26 UTC 2011 x86_64 GNU/Linux
$ lsmod | grep pcs
pcspkr 1699 0
$ dmesg | grep spk
[ 48.380000] input: PC Speaker as /devices/platform/pcspkr/input/input5

With a Linux kernel at version 2.6.33 the module `pcspkr` is loaded too.

$ grep spk dmesg.2.6.33-8724fdb53d27d7b59b60c8a399cc67f9abfabb33--with-beep
[ 58.254983] input: PC Speaker as /devices/platform/pcspkr/input/input4

I tried other revisions and the numbering does not influence the beep.

Could it be related to the following commit [1]?

$ git log origin/master -- drivers/input/misc/pcspkr.c
[…]
commit ced918eb748ce30b3aace549fd17540e40ffdca0
Author: Thomas Gleixner <tglx@linutronix.de>
Date: Wed Feb 17 16:47:10 2010 +0000

i8253: Convert i8253_lock to raw_spinlock

If yes that would mean, the pcspkr just did not work before and it would
have to be blacklisted in `/etc/modprobe.d/`.


Thanks,

Paul


[1] http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=ced918eb748ce30b3aace549fd17540 e40ffdca0
[2] http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=blob;f=Makefile;h=1b24895212d8d198587bed 5152b56a2cef8134c3;hb=ced918eb748ce30b3aace549fd17 540e40ffdca0

-- System Information:
Debian Release: wheezy/sid
APT prefers unstable
APT policy: (500, 'unstable'), (500, 'testing'), (1, 'experimental')
Architecture: i386 (x86_64)

Kernel: Linux 2.6.32-5-amd64 (SMP w/2 CPU cores)
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash
 
Old 08-16-2011, 12:56 PM
Ben Hutchings
 
Default Bug#637974: linux-2.6: GDM beeps for Linux kernel versions >=2.6.33

From all that you've written, I still can't work out what behaviour you
think is a bug. Please explain.

Ben.
 
Old 08-16-2011, 02:17 PM
Paul Menzel
 
Default Bug#637974: linux-2.6: GDM beeps for Linux kernel versions >=2.6.33

Am Dienstag, den 16.08.2011, 13:56 +0100 schrieb Ben Hutchings:
> From all that you've written, I still can't work out what behaviour you
> think is a bug. Please explain.

I am sorry.

With Linux kernel 2.6.32 `snd-pcsp` is blacklisted and `pcspkr` is
loaded and I do not hear any sounds from the PC speaker which is what I
want to have.

With Linux kernel >= 2.6.33 something changed that I hear the PC speaker
which I do not want. So that is a regression from my view point and this
could be called a “bug”.

And the question is, if blacklisting `snd-pcsp` is enough or if `pcspkr`
also has to be blacklisted.


Thanks,

Paul
 

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