[HEADS UP] drm merged to -STABLE

[Greg Rivers]

On Wed, 18 Mar 2009, Robert Noland wrote:

> On Tue, 2009-03-17 at 18:24 -0500, Greg Rivers wrote:
>> On Tue, 17 Mar 2009, Robert Noland wrote:
>>
>>> On Tue, 2009-03-17 at 12:20 -0500, Greg Rivers wrote:
>>>> On Sat, 10 Jan 2009, Robert Noland wrote:
>>>>
>>>>> I just merged drm (Direct Rendering) from HEAD.
>>>>>
>>>>>        - Support for latest Intel chips
>>>>>        - Support and fixes for many AMD/ATI chips r500 and below
>>>>>        - Support AMD/ATI IGP based chips (rs690/rs485)
>>>>>        - Lots of code cleanups
>>>>>        - Lots of other fixes and changes since the existing drm
>>>>>          is 2+ years old
>>>>>
>>>>> If you are experiencing a "garbled" screen with certain pci/pci-e based
>>>>> radeons, I have another patch in HEAD that isn't included yet.
>>>>>
>>>>
>>>> I have a workstation with a [Radeon X600 (PCIE)] card.  The X display has
>>>> been garbled since these DRM updates went in in January, and remains
>>>> garbled with 7.1-STABLE as of yesterday.  As a work-around, I'm running
>>>> the up-to-date 7.1-STABLE system (both world and ports) with a
>>>> 7.1-RELEASE-p2 kernel.  The display is fine with the old kernel and X
>>>> works great; I even see dramatically improved performance with the new
>>>> Xorg and EXA acceleration.  Your work is much appreciated.
>>>>
>>>> But the garbled display with the recent DRM still plagues me.
>>>>
>>>> [snip]
>>>
>>> Could you try the attached patch.
>>>
>>
>> Unfortunately, there is no noticeable difference with this patch.
>>
>>
>>> Also, I'm guessing that this is a PCI based card, right?  Also, it isn't
>>> an integrated model?
>>>
>>
>> Yes, this is a PCIEx16 card in a HP Compaq dc7600 desktop PC, not a
>> motherboard integrated adapter.
>>
>> Thanks for your help.  I'm willing to spend some time debugging this;
>> please let me know if there's more information I can provide or other
>> tests or patches I can try.
>
> Ok, try this patch... I asked the folks from AMD and they agree that
> this shouldn't be needed on an RV370, but we will give it a try... This
> is what fixed the garbled display on the IGP chips.
>

The display is still garbled with this patch too.

I'm curious about why the drm driver calls this card a RV370, while pciconf
and the X server call it a RV380:
 	pciconf: "RV380 RADEON X600 Series 265MB"
 	X server: "ATI Technologies Inc RV380 [Radeon X600 (PCIE)]"
 	drm driver: "ATI Radeon RV370 X600 Pro"

Could it be that the drm driver has the wrong chip set or configuration for
this PCI ID?

-- 
Greg Rivers
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