Arch Linux

herrvideman

Member

Registered: 2010-01-11

Posts: 111

Video out to TV is choppy

I have a laptop with Intel GMA 950 integrated graphics, Arch i686, and KDE 4.4.3. When I send a signal from my laptop to my CRT TV via S-Video cable there is a problem. If I use KDE to set my TV display to "the left" of my laptop then my TV does have a picture, but it's very choppy (especially when I move my mouse around for whatever reason). However if I set my TV to "clone" my laptop display there is no choppiness and it works fine.

I would like to stop the choppiness while still having my TV display to the left (for videos and whatnot). Not sure if it's a hardware problem, X problem, KDE, etc. Anyone have any idea about this?

davidgreem

Member

Registered: 2010-05-20

Posts: 5

Re: Video out to TV is choppy

As per my knowledge there is a definately problem with your graphics card it leads to the inferior quality of the picture.So check that out.

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herrvideman

Member

Registered: 2010-01-11

Posts: 111

Re: Video out to TV is choppy

Thanks. Looks like you're right: http://bugs.freedesktop.org/show_bug.cgi?id=26925

Guess I'm stuck for now.

kokoko3k

Member

Registered: 2008-11-14

Posts: 2,464

Re: Video out to TV is choppy

That bug report was mine.
I still have to try to use xv+overlay (it's now available with kernel 2.6.33 and latest intel drivers) on vga, but maybe you could give it a shot.
(mplayer myfile -vo xv:adaptor=#x, find "#x" with xvinfo to find the overlay one)
Ah, i also noticed that tearing/flickering effect are more evident on high res content and when the vga refresh rate greatly differs from the lvds one (75hz vs 60hz for example).

Last edited by kokoko3k (2010-05-22 09:01:26)

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herrvideman

Member

Registered: 2010-01-11

Posts: 111

Re: Video out to TV is choppy

Thanks, I'll give that a shot. Hopefully this gets worked out soon though.