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Bug#697229: Disabling KMS makes X unstable



On Wed, 2013-01-02 at 22:27 +0100, Florian Weimer wrote:
> Package: linux-image-3.2.0-4-amd64
> Version: 3.2.35-2
> 
> I've got two ATI r300-era cards which are unstable after the recent
> disabling of KMS.
> 
> Symptoms are corrupted fonts (instead of characters, bounding boxes
> are shown), missing characters, a general slowdown of some graphics
> operations (there is a very noticeable delay when maximizing
> Iceweasel), and, worst of all, relatively frequent complete lock-ups
> during ordinary X usage.
[...]

Yes, you're right, the change I made doesn't make that much sense.  The
only thing we can do without firmware is KMS on chips older than R600.
Switching to UMS is pointless since the driver is then only doing DRM,
which definitely doesn't work without firmware.

So the next upload should re-enable KMS for your cards.

Ben.

-- 
Ben Hutchings
Never attribute to conspiracy what can adequately be explained by stupidity.

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