From: mike lewis <lachlanlewis@gm...> - 2007-01-10 01:32:33
Please help me to diagnose a problem running xine on my fresh
installation of Ubuntu Edgy.
When i open a media file; the screen is "choppy". It's hard to
explain; but imaging the window broken vertically into 5th's. the
first 3 5tsh of the window from left to right look fine/normal. The
4th section randomly has black lines running accross it; and the 5th
section as the same bot around twice as many lines. It's almost like
when the pixture is written to ram those sections of memory aren't
getting written to...
When I run fullscreen it looks better, but is seems only because the
black lines are less concentrated. Conversely; when I shrink the
window, the lines get more compacted to the point where at half size
window looses about 40% of the picture on the 4th section and about
90% of the picture on the 5th section.
I do not think this is screen "tearing" as no matter where on the
screen I place this window the same affect occurs. I can move the
window to the left os the screen or to the right of the screen and the
artifacting effect moves with the window.
I have an LCD projector with a native resolution of 1280x720.
I have tested in xine with xv output and vidix output. When running
in verbose mode vidix output is finding the /dev/mga device. However;
both xv and vidix have the same effect.
I find mplayer also does the same. With mplayer I can avoid the issue
by using the "xmga" driver. But xine does not have this vo driver..
Can someone please assist me to trubleshoot the issue..
I've seen discussions about tearing on LCD screen's being caused by
out of sinc vo drivers from the display... Although I don't think
this is the cause; I have no idea how to eliminate it as a cause??
On Wednesday 10 January 2007 02:32, mike lewis wrote:
> I have an LCD projector with a native resolution of 1280x720.
Not sure about this, but it could be related to the 16:9 resolution ?
I suppose you set X11 to this resolution.
It's been a long time ago I used any Matrox cards (switched to nvidia for my
projector), but I remember that I had to put the DisplaySize parameter in my
xorg.conf (at that time xfree86.conf).
The part below is from my old config file :
Identifier "monitor 1"
HorizSync 27.0 - 86.0
VertRefresh 50.0 - 160.0
#Displaysize needed for Xine
DisplaySize 715 285 (change for different setup).
I also remember that there was hardly any documentation on this parameter, so
I had to find some reasonable values by trial and error.
I hope it's of some use to you.