I am having some issues trying out vdpau with an nvidia card on the svideo output; I'm getting testing.
Does anyone have any tips on how to fix this? It seems to be a persistent problem for a number of users, yet some people claim to have fixed it.
On 01/02/2009, Torgeir Veimo torgeir@pobox.com wrote:
On 1 Feb 2009, at 18:12, Torgeir Veimo wrote:
I am having some issues trying out vdpau with an nvidia card on the svideo output; I'm getting testing.
Hmm hangover day... Was going to say I'm getting tearing.
-- Torgeir Veimo torgeir@pobox.com
On the newer drivers for Linux for the later series cards from NVidia, they have purposefully disabled the output of 50Hz when you select PAL over the S-Video output. You would think that when you specify PAL in your xorg.conf Options that it will automatically change the refresh rate to 50Hz. You can confirm this by running "DISPLAY=:0.1 xvidtune", assuming your S-Video out is :0.1, could even be :0.2 on yours. The newer TVs will show the colour correct PAL encoding, but over 60Hz refresh rate, the older CRT TVs cannot do this. Similar to PAL-B that is said to be on 60Hz (wikipedia).
The tearing effect can caused due to your video is interlaced requiring a 50Hz output device, but your card is actually output @60Hz, so you require a deinterlacer to run. I would think that vdpau would assist in achieving deinterlaced video, making it fit to view on 60Hz out. The other solution is to have an old card with an old driver, but vdpau is only supported on newer cards. inspect your deinterlacer configuration settings of vdpau.
On 2 Feb 2009, at 18:48, Theunis Potgieter wrote:
On the newer drivers for Linux for the later series cards from NVidia, they have purposefully disabled the output of 50Hz when you select PAL over the S-Video output.
I'll try component output instead. I guess this definitely means that vdpau will not be an option for those who require svideo or composite signal.
There is a VGA -> RGB connector that you can assemble/buy. I've seen in the xorg.conf that you can still force your VGA out to run on 50Hz, by disabling EDID on the nvidia xorg.conf Options. Try to set your computer screen at 50Hz and see if the tearing goes away, if successful try to move over using RGB adapter to output TV/device.
On 02/02/2009, Torgeir Veimo torgeir@pobox.com wrote:
On 2 Feb 2009, at 18:48, Theunis Potgieter wrote:
On the newer drivers for Linux for the later series cards from NVidia, they have purposefully disabled the output of 50Hz when you select PAL over the S-Video output.
I'll try component output instead. I guess this definitely means that vdpau will not be an option for those who require svideo or composite signal.
--
Torgeir Veimo torgeir@pobox.com
vdr mailing list vdr@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/vdr
On 3 Feb 2009, at 00:58, Theunis Potgieter wrote:
There is a VGA -> RGB connector that you can assemble/buy. I've seen in the xorg.conf that you can still force your VGA out to run on 50Hz, by disabling EDID on the nvidia xorg.conf Options.
Yes this is what I'll be trying, but I'll just get an nvidia component breakout box, they're about $10 on ebay.
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Theunis Potgieter -
Torgeir Veimo