lkml.org 
[lkml]   [2011]   [Apr]   [25]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
SubjectRe: Radeon jittery post 2.6.35
From
On Sun, Apr 24, 2011 at 5:24 AM, Anders Eriksson <aeriksson@fastmail.fm> wrote:
>  On 03/18/11 09:55, Anders Eriksson wrote:
>>  On 03/16/11 21:09, Anders Eriksson wrote:
>> >  On 03/15/11 22:46, Alex Deucher wrote:
>> > >  Try booting with radeon.audio=0 on 2.6.38rc, some TVs have problems
>> > > with the hdmi packets we send by default.  disabling audio will treat
>> > > the hdmi like dvi.
>> > >
>> > > Alex
>> > You seem to be on to something there. radeon.audio=0 removes
>> > what appears to be all of the jitter. I say "appear", because during
>> > my many test runs today, I've come across moments where my brain
>> > goes "wasn't what I just noticed on the TV something abnormal?" Both
>> > in fb mode (post KMS), and in X11. It's definetly improved from useless
>> > for family use, to perfectly ok though.
>> >
>> I was too early on this one. Yesterday (.38) , and today (38-rc8),
>> are both jittery in post-KMS fb mode and in X, even though I use
>> radeon.audio=0.
>>
>> A power cycling of the TV stabilizes it though.
>>
>> I'd be more than happy to test out any patches or ideas you might have.
>>
>> -A
>
> It turns out all the failure patterns I've thought I've seen so far up
> through .38.x are moot.
>
> However, now on .39-rc, the KMS'd console is stable, and starting X
> makes it bad again.
>
> It there anything useful I can pull from any logs on the startup of X?
> Either from the X
> server, or the kernel. Last time I looked at the drm log from the kernel
> It was unreadable
> to a mere mortal, but I hope you guys can point me to what debug knobs
> to enable to get a good
> view of the interesting parts (How does one start a minimal X, btw?
> "xinit" gives me an
> undecorated xterm with the jitter. Can one start something more minimal?)
>
> Currently running today's git xorg-server and xf86-video-dri.
>
> -Anders
>
>

Best is to open a bug and attach xorg log & kernel dmesg.

https://bugs.freedesktop.org/

Cheers,
Jerome
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2011-04-25 16:55    [W:0.322 / U:0.076 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site