Messages in this thread | | | Date | Fri, 19 Nov 2010 22:35:19 +0100 | Subject | Re: Regressions in resume on intel graphics | From | Zdenek Kabelac <> |
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2010/11/19 Jesse Barnes <jbarnes@virtuousgeek.org>: > On Fri, 12 Nov 2010 10:17:07 +0100 > Zdenek Kabelac <zdenek.kabelac@gmail.com> wrote: > >> 2010/11/12 Zdenek Kabelac <zdenek.kabelac@gmail.com>: >> > Hi >> > >> > I've noticed that after resume with 2.6.36 kernel I need to switch >> > between console and back to Xorg to get usable Xsession again. >> > (my hw - T61, gma965, 4GB) >> > >> > I've played bisect game - and this is the first broken kernel: >> > >> > --- >> > commit 8fd4bd22350784d5b2fe9274f6790ba353976415 >> > Author: Jesse Barnes <jbarnes@virtuousgeek.org> >> > Date: Wed Jun 23 12:56:12 2010 -0700 >> > >> > vt/console: try harder to print output when panicing >> > --- >> >> I've been able to boot and test with 2.6.37-rc1-00170-gf6614b7 >> - and this problem seems to be fixed in this version (vt.c file seems >> to be gone?). > > This is really weird; there was one issue Dave tracked down related to > lockdep and the new oops code, but I think it's been fixed. And it > should manifest as something other than a GPU hang... >
Well - unsure - how this worked ok - for 2.6.37-rc1-00170-gf6614b7 (I could try few more times - though this kernel seems to be crashing for various other reasons - so I've had quite few testruns before I've been able to test this in some very limited X environment - so maybe it was just some lucky case - but I still keep it on my disk)
Anyway - as an update - I'm now regularly using 2.6.37-rc2 - and it has exactly same problems - as in my original report - so the problem has not magically disappeared and it is still there. Is there anything I should try ?
Basically every time after resume from suspend I have to switch from X to console and back to get usable screen back. Without this I seen only black screen with mouse over it - is there some way for reverting of this patch - or maybe just disabling some part of it ?
To have reliable resume I still have to keep drm_kms_help thread disable - otherwise I observe GPU errors. Switch between consoles is 'relatively' easy to overcome.
And another thing which might help - during suspend/resume I could usually see weird switch to console with some special text on the whole console screen -
[ ###.... ] [ ###.... ]
where '###' is some changing number - and it seems to be different between resumes. Also I should add I'm using 'no-console-suspend' kernel boot option.
Zdenek -- 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/
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