Re: [PATCH] drm/radeon/kms: don't enable underscan with interlaced modes

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2010/9/10 Marius Gröger <marius.groeger@xxxxxxxxxxxxxx>:
> 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
xserver.

The only difference in the register dump was that the scaler was
enabled for underscan in the kms one.

Alex

>
> Thanks
> Marius
>
>
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