[mythtv-users] Screen corruption with fglrx X driver

[Jason McMillon]

On Tue, Jul 29, 2008 at 8:34 PM, David Gee <david at allpowerfuldave.com> wrote:
> Thanks to all for the various suggestions; using the --geometry argument
> fixes the problem with the screen garbling - I'll havea a fiddle with some
> of the xorg.conf settings and see if I can fix it for fullscreen too using
> the ideas that have been put forward.
>
> When viewing widescreen HD content, I also saw the duplicate videos stacked
> on top of each other. How do you change which deinterlacer is being used?
>
> Regards
> David
>
> On Mon, Jul 28, 2008 at 4:39 PM, Eric (MythTV) <eric-mythtv at skoozdag.com>
> wrote:
>>
>> Jason McMillon wrote:
>> > I am having the same problems as described above.  I am using a
>> > GIGABYTE GA-MA78GPM-DS2H motherboard which has an onboard ATI HD3200.
>> >
>> > I have seen other posts that indicate VideoOverlay should be on and
>> > OpenGLOverlay should be off.  Regardless, neither combination works
>> > for my frontend.
>> >
>> > However, I can get passed the garbled picture David posted above by
>> > doing what Eric suggested... setting the geometry for mythfrontend at
>> > the command line, eg:
>> >
>> >  mythfrontend --geometry 800x600
>> >
>> > Unfortunately, when I try to watch a recording this way, I get two
>> > duplicate videos... one right on top of the other.  Very strange....
>> >
>> > I am running it on a CentOS 64-bit system with everything up to date...
>>
>>
>> Jason:
>>
>> I also had the issue with the duplicate videos.  The duplicate videos
>> one ontop of the other is an issue with the deinterlacer I was using at
>> the time.  Are you using Bob(2x)?  I got the same picture issue as you
>> described, two copies of the video, with Bob.  When I changed to a
>> different deinterlacer, it went away.  Play with your deinterlacers and
>> you should be able to get that issue to go away, at least.  I think I
>> ended up using Kernel, perhaps?  I cant remember... but I was able to
>> fix that issue, for sure.
>>
>> Heres something else to try, for the screen garble running in full
>> screen mode.  I think it had something to do with when mythfrontend was
>> trying to use DRI.  Try turning DRI off in the xorg.conf file (not sure
>> the command, sorry, I just removed permissions to /dev/dri/video0 so
>> that mythfrontend couldnt access it), and the screen garble seemed to go
>> away.  I'm afraid not using DRI is why I was having screen tearing
>> issues -- not positive of that however -- but at least not using it
>> didnt garble the screen.
>>
>> I'm pretty sure thats how I fixed it on my system, had to look back over
>> the notes I was taking at the time of all the different things I was
>> trying. :)
>>
>> If you get the screen garble to go away, please report if you have any
>> issues with video tearing, with the HD 3200.  I'm curious to hear.
>>
>> BTW, I have the same motherboard as you.  Well, almost.  Mines the DS3H.
>>
>> Good luck...
>> --Eric
>>
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>
>

Deinterlacing is now included with playback profiles found under
Setup> TV > Playback > Profiles or something like that.  I haven't had
a chance to play with it much.  I read in different post that the
"slim" profile does not have deinterlacing enabled.  I haven't had
much time to play with it... damn thesis...