Radeon r6xx with KMS not working

[Alex Deucher]

On Tue, Sep 8, 2009 at 7:17 PM, Mike Lothian<mike at fireburn.co.uk> wrote:
> 2009/9/8 Mike Lothian <mike at fireburn.co.uk>:
>> 2009/9/8 Alex Deucher <alexdeucher at gmail.com>:
>>> On Tue, Sep 8, 2009 at 6:34 PM, Mike Lothian<mike at fireburn.co.uk> wrote:
>>>> Hi
>>>>
>>>> When using the new drm-next branch KMS fails (see attached logs) with
>>>> radeon.modeset=0 passed the computer will hard lockup when KDM is
>>>> starting (I think this is when the compositing is started)
>>>
>>> [drm:r600_ib_test] *ERROR* radeon: fence wait failed (-16).
>>> [drm:rv770_init] *ERROR* radeon: failled testing IB (-16).
>>>
>>> Pull the latest from the drm-next branch.
>>>
>>> Alex
>>>
>>
>> Just noticed that after Perry pointed out the fix on Phoronix
>>
>> Thanks
>>
>> Will let you know how I get on
>>
>
> The good news is that KMS now works, the bad news is KDM still wont
> start with compositing. Plain X works and glxgears work as does KDM
> with compositing off
>
> Glxgears says:
> IRQ's not enabled, falling back to busy waits: 2 1
> do_wait: drmWaitVBlank returned -1, IRQs don't seem to be working correctly.
>
> My dmesg says:
>
> Unpin not necessary for ffff88007c9a1600 !
> Unpin not necessary for ffff88006eda6400 !
> Unpin not necessary for ffff88006b14d400 !
>
> I couldn't see anything in my Xorg.0.log file that would explain why
> KDM keeps rebooting
>
> Is there anything else that might be useful?
>

kde GL compositing doesn't work that well at the moment even without KMS.

Alex