Arch Linux

popoffka

Member

Registered: 2012-03-29

Posts: 16

Catalyst & HDMI audio: problem when turning TV off

Hi everyone,

I've got two PCs with AMD E-350 FPU, one is a laptop running Windows 7 and the other is a nettop running Arch Linux (using Catalyst as a driver for the GPU). On both of them, I'm experiencing a similar problem with sound:
When turning on the computer and the TV, everything works just fine, including sound. However, if I turn off the TV (without disconnecting the HDMI cable) the following happens:
Arch: no sound anymore, even if I turn the TV back on. No visible changes in alsamixer.
Windows: sound through internal speakers. ATI HDMI sound device now shows up as 'Disconnected', even if I turn the TV back on.
Disconnecting the HDMI cable and then inserting it back (while the TV is on again) fixes the problem on both computer, and so does rebooting the computer.
However, even though this seems to not be a Linux-related problem (being etiher a problem with TV's firmware or ATI GPU), I wonder if anyone knows of a more elegant (preferably software, of course ) solution than reconnecting the cable each time I want to turn off my TV and then turn it back on?

Last edited by popoffka (2012-06-01 10:29:36)

Ichinisan

Member

Registered: 2012-06-07

Posts: 1

Re: Catalyst & HDMI audio: problem when turning TV off

I have the same issue in Windows. If I turn-off the TV and turn it back on, there is no sound. Because I have no other sound devices (disabled the others in BIOS setup), the speaker icon shows a red "x". The playback devices screen says HDMI is "unplugged." I have to restart the system or unplug/reconnect the HDMI cord to get sound to come back.

.:B:.

Forum Fellow

Registered: 2006-11-26

Posts: 5,819

Website

Re: Catalyst & HDMI audio: problem when turning TV off

Try the 12.6 beta and see if things improve for you. I heard positive reports sound-wise.

---

Got Leenucks? :: Arch: Power in simplicity :: Get Counted! Registered Linux User #392717 :: Blog thingy