Kworker intel graphics freeze

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Hi Nick

Two things:
- Please always include a relevant mailing list, never only send a mail to
your maintainer.
- All hotplug detection related issues, which commonly result in gfx stalls
and busy kworkers should be in 3.10. You can grab the drm-next branch to
test the latest code.

If the module option doesn't help you, then it's a different bug. Note
though that in 3.9 kernels the module option is somewhat broken, so not as
effective a workaround.

Cheers, Daniel



On Tue, Apr 30, 2013 at 7:39 AM, Nick Ritar <nick at milkwood.net> wrote:

>
> Hi Daniel,
>
> I've been reading up for the last couple of hours about the graphics
> freeze on recent kernels ... your name keeps coming up as the expert on the
> matter.
>
> This problem is really playing havoc for me... could I please trouble you
> on a tip on how to fix it in the short term.
>
> Forums suggest to "options drm_kms_helper poll=N "  but that was on much
> earlier kernels than I am using, and I'm not so confident
>
> Mine stutters after waking... often hanging completely... can't even get a
> console up.
>
> Managed to snap the screenshot attached & details below....  I know this
> is not your job, but please have pity on a mere mortal :)
>
> Thank you for your time in reading this.
>
> Nick
>
> Linux nick-ThinkPad-T400 3.8.0-19-generic #29-Ubuntu SMP Wed Apr 17
> 18:16:28 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
>
> 00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series
> Chipset Integrated Graphics Controller (rev 07) (prog-if 00 [VGA
> controller])
>         Subsystem: Lenovo Device 20e4
>         Flags: bus master, fast devsel, latency 0, IRQ 46
>         Memory at f4400000 (64-bit, non-prefetchable) [size=4M]
>         Memory at d0000000 (64-bit, prefetchable) [size=256M]
>         I/O ports at 1800 [size=8]
>         Expansion ROM at <unassigned> [disabled]
>         Capabilities: <access denied>
>         Kernel driver in use: i915
>
> --
> nick ritar
> Milkwood Permaculture
> Ph: 02 6373 7763 / 0412 714 884
> <http://www.milkwoodpermaculture.com.au/courses>
>
> Blog: http://Milkwood.net
> Courses: http://MilkwoodPermaculture.com.au
> Facebook:http://Facebook.com/MilkwoodFarm
>



-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
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