[alsa-devel] Issues with HP DV4 laptop sound after Ubuntu Jaunty 9.04 upgrade
jstalnak at wisc.edu
Tue May 5 15:54:59 CEST 2009
I will take my queries there. Thanks for your help!!
Takashi Iwai wrote:
> At Mon, 04 May 2009 10:26:27 -0500,
> Guy Stalnaker wrote:
>> Hello again, Takashi,
>> Can you think of why a new distribution might be the cause, or a change
>> that a new distribution makes, that would result in such behavior? The
>> new distribution includes a new kernel and a new version of xorg (I
>> think), so everything on top of the hardware is new. What's damned
>> peculiar is that the HTML output interface is always recognized
>> successfully. It's only the Audio device: ATI Technologies Inc SBx00
>> Azalia (Intel HDA) on pci 00:14.2 that seems to have this issue.
>> To add oddity to the issue, I brought the laptop to work this morning
>> and on boot the Audio device was successfully recognized and aplay -l
>> shows it a card 0!!
>> I wonder ... do you think that it's possible that a keyboard, mouse,
>> printer, or some other USB device plugged into the laptop at boot could
>> affect something like this? That's really the only difference between
>> work and home.
> I guess it's an issue with ACPI or core PCI layer. Or suspend, if
> this happens only after suspend/resume and not after a fresh boot.
> In any way, I recommend you to report this on kernel bugzilla.
Guy Stalnaker, I2 at DOIT, jstalnak at wisc.edu
1210 West Dayton Street, Room 3209 CSS, Madison WI 53706
work 608.263.8035, cell 608.235.4718, fax 608.265.6681
More information about the Alsa-devel