[mythtv-users] fglrx Pal, 50Hz

Micha Kersloot micha at kovoks.nl
Thu Dec 22 16:01:41 EST 2005

Nick schreef:
> On 19/12/05, Micha Kersloot <micha at kovoks.nl> wrote:
>>I'm using the ati fglrx driver 8.19.10 which gives me quite a good
>>picture. The only thin that bugs me a little is that when i'm watching
>>tv and something is moving quite fast on the screen there seems to be a
>>little lag on that object (the same thing you see when you wave your
>>hand very fast in front of your eyes).
>>I think from what i've read sofar this could have something to do with
>>'deinterlace'. Is that true?
>>If that is the case, it looks like the deint functions are not working
>>very well in my configuration. I think that the fact that i'm living in
>>the Netherlands (PAL) and the fglrx driver using 60Hz could be the
>>reason for these bad deint effects, true?
>>If above is true, is it possible to use my Ati Radeon 9600 in a 50Hz
>>configuration (maybe another / older driver?)
> Have you tried limited the refresh rate for the TV in your xorg.conf
> file? This should stop it trying to use a refresh rate higher than
> 50Hz. Have you also specified your TV standard (I use PAL-I in the UK)
> in your xorg.conf file - this should be setup during fglrx driver
> setup.

My xorg.conf config says:
Screen section
         HorizSync       15 - 50
         VertRefresh     50 - 50
	ModeLine "800x600x50" 33.1584 800 840 968 1056 600 601 605 628

subsection display
         Modes       "800x600x50"

And the logfile:
(II) fglrx(0): Supported VESA Video Modes:
(II) fglrx(0): 640x480 at 60Hz
(II) fglrx(0): 800x600 at 60Hz
(II) fglrx(0): 1024x768 at 60Hz
(**) fglrx(0): *Mode "800x600x50": 40.0 MHz (scaled from 0.0 MHz), 37.9 
kHz, 60.0 Hz
(II) fglrx(0): Modeline "800x600x50"   40.00  800 840 968 1056  600 601 
605 628

This looks like 60Hz is used. And i'm not able to use the bob 
deinterlacing and i think these are connected.

Met vriendelijke groet,

Micha Kersloot

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