[PATCH] drm/radeon/kms: don't enable underscan with interlaced modes
alexdeucher at gmail.com
Fri Sep 10 08:20:04 PDT 2010
2010/9/10 Marius Gröger <marius.groeger at googlemail.com>:
> On 10.09.2010 09:19, wrote Alex Deucher:
>> They aren't compatible.
> Hm, ok. Is this supposed to be quick fix or is there any chance to get
> proper underscan for interlaced modes?
The scaler doesn't appear to work with interlaced modes as you've
noticed; I don't off hand know whether it can be made to or not.
Unfortunately, I won't have time to dig into this more for a while.
> Secondly, have you had a chance to look at my register dumps? Any clues as
> to why the Xserver prunes interlaced modes only with KMS?
If this commit (http://cgit.freedesktop.org/xorg/driver/xf86-video-ati/commit/?id=b90cb61ccb0f4f80e0627141f223354a9371d47d)
doesn't help, then presumably the problem is due to some change in the
The only difference in the register dump was that the scaler was
enabled for underscan in the kms one.
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