No sound while in x display with nvidia driver and acpi=on

[David Santamaría Rogado]

I have an ASUS M3N78-EM motherboard and the problem is that there is no sound when the nvidia driver is in use. The sound works if nv driver is used or, if nvidia driver is in use and ubuntu has been booted with acpi=no option.

When playing something in totem, the pulseaudio volume meters works, and is possible to see it showing sound but nothing sounds in the speakers. When going to a console (control+alt+1 for example) the sound starts to sound in the speakers and when returning to the x display a little noise sounds and the application playing the sound is automatically close, totem in this case. The little noise sound always just when entering in the x display, with nvidia driver and acpi on.

The problem is not only with the integrated sound, also with another dedicated sound card happens, no sound at all. The integrated one appears in gnome-mixer as alc1200 and the dedicated one is a pci X-Fi Xtreme Audio (yes its a X-FI one but it works because is the only X-Fi with a ca0106 chip, is more an audigy than a x-fi).

I have tried also installing 185 version driver from nvidia but the problem continues.

[David Santamaría Rogado (howl)]

I forget to mention that I have tested aldo enabling msi interrupts in the nvidia module and in the snd-hda-intel module (alc1200 sound card), but that didn't solve the problem.

[David Santamaría Rogado (howl)]

This is solved by using nvidia drivers 190.16 beta. I have used the vdpau ppa ones but is presumably that doesn't matter the install method.

[SnowWolfau (tech-hester)]

Fresh Install of Karmic and sound works Install Nvidia drivers and sound stops working. I have tried the 185, 190.40, and 195.22 beta nvidia drivers and all have the problem. Remove the nvidia driver and sounds works again.

[Jens Gräf (jgraef)]

Do you use a screen which has integrated speakers?

If yes, this might help:
http://www.mythtv.org/wiki/Configuring_Analog_Sound_DVI_to_HDMI

[David Santamaría Rogado (howl)]

Jens Gräf this is a know solved bug (you can see it in the kernel bug tracker), with nowadays some old versions of nvidia driver and some old versions of linux kernel the sound stops working, no sound from integrated sound card, no sound from pci card, no sound at all.

The easiest way to resolve it is to install 190 or to upgrade to ubuntu karmic.

[Jens Gräf (jgraef)]

Mh, so perhaps it's not solved correctly or I'm seeing another bug.

Installed karmic 64 yesterday with all updates.
Tried nvidia-185 and 190 from ppa -> no sound

ctrl-alt-f1 -> sound works
ctrl-alt-f7 -> silence again

faked edid as in
http://www.mythtv.org/wiki/Configuring_Analog_Sound_DVI_to_HDMI
problem solved.

[David Santamaría Rogado (howl)]

Sure because I started the bug and the solution was the one I mention, the only way the bug are you describing is the same like is, is if in the kernel version and in the nvidia driver version they fixed the edid of some tvs like the one I have for example.