[ubuntu-x] Kernel Call for Testing(CFT): DRM stack

[Bryce Harrington]

On Fri, Apr 16, 2010 at 01:15:15AM -0700, Luis R. Rodriguez wrote:
> Alright -- so HDMI audio issue resolved by upgrading my kernel to
> 2.6.34-rc4. I'm all set :)
> 
> One small note: with the default Ubuntu kernel on 10.04 and the DRM
> from 33.2 that it comes with my desktop kept a grey tone, as the old
> default tones on Ubuntu 9.04. I thought that was just part of the
> installation, but after installing 2.6.34 I now get the dark grey
> tones for the desktop as it was on the beta2 LiveCD. So -- I did see
> the dark grey tones on the LiveCD but not upon install. Not sure how
> that happened and why upgrading my kernel "fixes" this :P
> 
> Anyway -- great stuff guys, now I only have to stick to a "stable" rc
> kernel to get my hardware completely functional. It only took 2 years
> after my original purchase.. but we go there.

Audio is generally outside the scope of X.org; I know there seems to be
some overlap in this case since the same cable transmits both video and
audio, but as I understand it, video and audio are split out at the
kernel level and the latter is directed off to the audio system, so it's
not something we deal with in ubuntu-x.

Since it sounds like you were able to resolve it by using a newer
kernel, that suggests there is a kernel patch upstream needed to make
your system work.  So you should report this to the kernel team.  If you
are able to identify the specific patch(es) needed either by talking
with a developer or doing git bisection, you can request the patch(es)
added to the kernel.  Probably too late to get into the lucid release
but maybe it'll qualify for an SRU.  Otherwise, the newer kernel bits
will be present in the 10.04.1 kernel update presumably.

Bryce