[SOLVED] Sound card not working . . . sometimes

[yeats]

I recently acquired an Acer Aspire 2010 laptop and installed Gutsy on it. The sound card was working fine with the live CD and then when I first installed Ubuntu. I did a "medibuntu" install of several drivers to allow DVD playback and since then my sound card is not working consistently. What happens is that it is either recognized when I boot, in which case it works fine, or it is not recognized when I boot, in which case it does not work at all.

Here's the "aplay -l" when the card is working:


chris@chris-laptop:~$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: I82801DBICH4 [Intel 82801DB-ICH4], device 0: Intel ICH [Intel 82801DB-ICH4]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: I82801DBICH4 [Intel 82801DB-ICH4], device 4: Intel ICH - IEC958 [Intel 82801DB-ICH4 - IEC958]
Subdevices: 1/1
Subdevice #0: subdevice #0
chris@chris-laptop:~$

Of course, when it's not working, it says that no sound cards are installed.

Here's the "lspci -v" when the card is working:


00:1f.5 Multimedia audio controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) AC'97 Audio Controller (rev 03)
Subsystem: Acer Incorporated [ALI] Unknown device 0061
Flags: bus master, medium devsel, latency 0, IRQ 17
I/O ports at e100 [size=256]
I/O ports at e200 [size=64]
Memory at f0080400 (32-bit, non-prefetchable) [size=512]
Memory at f0080600 (32-bit, non-prefetchable) [size=256]
Capabilities: <access denied>

and when it's not working:


00:1f.5 Multimedia audio controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) AC'97 Audio Controller (rev 03)
Subsystem: Acer Incorporated [ALI] Unknown device 0061
Flags: medium devsel, IRQ 17
I/O ports at e100 [size=256]
I/O ports at e200 [size=64]
Memory at f0080400 (32-bit, non-prefetchable) [size=512]
Memory at f0080600 (32-bit, non-prefetchable) [size=256]
Capabilities: <access denied>

I've noticed that the "Flags" field lists different output in each case.

I've followed the general sound card troubleshooting on the Ubuntu wiki to no avail. Any suggestions?

Thanks!

[yeats]

I know everyone's excited about Hardy, so I understand :), but can anybody help me here?

I'll mention that I upgraded my laptop to Hardy in hopes that the sound card problem would be resolved - but no luck. When the sound card is recognized, no problems at all. When it's not recognized - nada.

[yeats]

Is there anybody out there?:confused:

[yeats]

bump

[Ben325e]

Not dual booting, are you? Sometimes if I mute my windows session, and then boot back into ubuntu I can't get any audio but the system beep. I have to go back and unmute in windows before having sound in ubuntu. Sucks.

Good luck,

Ben

[yeats]

No, this is a single installation laptop, though I have a dual boot on my desktop and it works just fine. Thanks for the answer, though.

[dbcoolio]

I have this same problem. I got it working in gutsy, I think it was something to do with the onboard modem getting confused with the soundcard, though after I blacklisted my modem this time it didn't solve the issue.