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Re: F10: new kernel breaks audio (snd-hda-intel)





On Sat, Dec 27, 2008 at 6:19 AM, Paulo Cavalcanti <promac gmail com> wrote:


On Sat, Dec 27, 2008 at 1:57 AM, Endy <endy digitalgrotto net> wrote:
stan wrote:
Alfredo Ferrari wrote:
Hi

I have a Dell D830, with F10 fully up-to-date. The kernel update of two days ago (2.6.27.9-159.fc10) has broken audio on this machine.

If I reboot on the previous kernel, 2.6.27.7-134.fc10, audio works like a charm. With the new kernel everything works with no error message, however no sound is output, like the volume is muted or set to very low values.
I have checked all volume sliders, both for pulseaudio and alsa and all of them are at maximum and unmuted. I am using the PAE kernel if that matters.

The audio driver is snd-hda-intel, and the output of lspci -v reads:

00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 02)
        Subsystem: Dell Device 01fe
       Flags: bus master, fast devsel, latency 0, IRQ 21
       Memory at f6ffc000 (64-bit, non-prefetchable) [size=16K]
       Capabilities: [50] Power Management version 2
       Capabilities: [60] Message Signalled Interrupts: Mask- 64bit+ Count=1/1 Enable-
       Capabilities: [70] Express Root Complex Integrated Endpoint, MSI 00
       Capabilities: [100] Virtual Channel <?>
       Capabilities: [130] Root Complex Link <?>
       Kernel driver in use: HDA Intel
       Kernel modules: snd-hda-intel

Is anybody else having the same problem?

                           Thanks
                       Alfredo Ferrari

I didn't have exactly that problem with the 159 kernel.  I was able to play sound but it was slowed down by about 1/3 to 1/2.  I couldn't find a reason, and wasn't sure it was the kernel, but when I, like you, reverted to the 134 kernel sound began working just fine.  I don't use pulseaudio.

The 159 kernel seemed to work fine other than that.

I can report another issue with the snd-hda-intel driver....I am using a Dell Vostro 1400 laptop and using the 159 kernel the lineout does not work.  If the speakers are plugged in, there is no sound whatsoever and I checked every possible mixer setting.  Unplugging the cable to the speakers, however, results in sound coming out of the laptop speakers after a noticeable pause.  Reverting back to the 134 kernel, these issues go away.



I also have the Dell Vostro 1400. This is fixed in the latest tarball.

However, this laptop also has some other issues:

http://mailman.alsa-project.org/pipermail/alsa-devel/2008-December/013570.html



Here is the 29/12/2008 alsa snapshot packaged for the latest F10 kernel:

http://dl.atrpms.net/f10-x86_64/atrpms/bleeding/alsa-kmdl-2.6.27.9-159.fc10-1.0.18a.snap-74.fc10.x86_64.rpm

http://dl.atrpms.net/f10-i386/atrpms/bleeding/alsa-kmdl-2.6.27.9-159.fc10-1.0.18a.snap-74.fc10.i686.rpm

One just need to install the rpm for the appropriate architecture and reboot. It is working for me just fine, and fixed most of my problems. Remember to adjust the volumes using any mixer
available.

To go back to the original kernel drivers, just uninstall the rpm, and reboot again.

I hope these rpms can help some people.

--
Paulo Roma Cavalcanti
LCG - UFRJ

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