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SubjectRe: I915 driver locks up
On 12/19/2010 06:02 AM, Chris Wilson wrote:
> On Sat, 18 Dec 2010 18:32:49 -0500, Stephen Clark<sclark46@earthlink.net> wrote:
>
>> I had been using mesa-7.9.
>> I loaded mesa-7.10 similar results. There is no
>>
>> /sys/kernel/debug/dri/0/i915_error_state
>>
>> In fact there is nothing in the /sys/kernel/debug directory. Do I have
>> to enable
>> something.
>>
> You need to "mount -tdebugfs debug /sys/kernel/debug".
>
>
>> With the later kernel - things are worse X becomes totally useless it looks
>> like my lcd panel lost horizontal sync. With the 2.6.25 kernel X is
>> still usable
>> this makes me think at least some of the problem is kernel related.
>>
> 2.6.25 to present marks the transition between UMS and KMS, i.e. moving
> of the userspace modesetting code into the kernel. And that should not
> have regressed. Can you please, grab an intel_reg_dumper of the working
> setup and the lost-sync setup, and include a drm.debug=0xe dmesg (i.e. add
> drm.debug=0xe to your boot commandline)?
>
>
>> With 2.6.37-rc6 and mesa 7.10 with hardware acceleration turned off in wine-
>>
>> Dec 18 18:01:50 joker4 yum[5244]: Updated: mesa-libGL-7.10-0.17.fc15.x86_64
>> Dec 18 18:01:52 joker4 yum[5244]: Updated: mesa-libGL-7.10-0.17.fc15.i686
>> Dec 18 18:01:54 joker4 yum[5244]: Updated: mesa-libGLU-7.10-0.17.fc15.x86_64
>> Dec 18 18:02:02 joker4 yum[5244]: Updated: mesa-dri-drivers-7.10-0.17.fc15.x86_6
>> 4
>> Dec 18 18:02:03 joker4 yum[5244]: Updated: mesa-libGLU-7.10-0.17.fc15.i686
>> Dec 18 18:02:11 joker4 yum[5244]: Updated: mesa-dri-drivers-7.10-0.17.fc15.i686
>>
> Good, those drivers are recent enough that I should be able to use the
> error state to find the broken code.
> -Chris
>
>
Hi Chris,

I emailed the information you requested, it was quite large, and haven't
seen it show up on
LKML yet. Don't know if it is being blocked by the ML or not.

Regards,
Steve

--

"They that give up essential liberty to obtain temporary safety,
deserve neither liberty nor safety." (Ben Franklin)

"The course of history shows that as a government grows, liberty
decreases." (Thomas Jefferson)





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