On Tue, Jul 20, 2010 at 2:55 AM, Ned Slider ned@unixmail.co.uk wrote:
On 20/07/10 03:08, Rob Kampen wrote:
Still no joy - I am at a loss to know what to check - if I boot a 194 kernel no sound, 164 kernel is fine - why the regression? Same configs, same modules loaded but now no sound - what can I check to determine problem and find a solution? no errors in logs or dmesg
I would suggest you start checking back through the changelogs between kernel-2.6.18-194.el5 and kernel-2.6.18-164.el5, find likely candidates that may have caused your issue and then rebuild a testing kernel with that patch reverted. If that testing kernel fixes your issue then you've identified the issue and can file a bug report upstream.
To start you on your way, this patch looks like a likely candidate for you to investigate further:
- Mon Dec 21 2009 Jarod Wilson jarod@redhat.com [2.6.18-183.el5]
- [sound] alsa hda driver update for rhel5.5 (Jaroslav Kysela) [525390]
Rob,
I understand you have already tried a workaround reported in:
https://bugzilla.redhat.com/show_bug.cgi?id=586532
According to comment #10 in there, Gary Gatling built a test kernel with the above alsa patch removed. You might want to try asking him for the kernel he built if you do not feel like building it yourself.
Akemi