[ltp] DVD plays half of the screen twice

[Tino Keitel]

On Tue, Dec 03, 2002 at 16:22:40 -0500, Charles E Taylor IV wrote:
> On Tue, 3 Dec 2002 15:58:52 -0500
> cdfrey@netdirect.ca wrote:
> 
> > I have a Thinkpad 770Z, running Gentoo Linux 1.4.  This laptop has
> > the Trident CyberDVD chip.  I am also running XFree86 4.2.1, and am
> > using mplayer 0.90pre8-r1 to play DVDs.
> 
> I had the same problem when upgrading my 770X (Trident Cyber 9397DVD)
> to Red Hat 8.0 from 7.3.  In 7.3, the DVD playback was perfect (well,
> as perfect as you can get on a 300 MHz machine).  In 8.0, I get the
> problem you describe:
> 
> > The problem I am seeing is that when I play a DVD I get the right
> > half of the movie screen displayed twice, side by side.  Sound
> > works, and the movie seems to play at a good speed, but I only see
> > half of it.
> 
> I solved it by copying /usr/X11R6/lib/modules/drivers/trident_drv.o
> from Red Hat 7.3 over Red Hat 8.0's driver.  Since both 7.3 and 8.0
> use XFree 4.2.0, this was painless.  (Why did the "same" version of
> XFree86 not show the same problem in 7.3?  Compiler issue?  Alignment
> of the planets?)

I think RedHat doesn't use the original sources of XFree86 4.2.0, at
least not for the trident driver. And obviously, at least the trident
driver differs between 7.3 and 8.0. This will be indicated by the very
last digit in the version of the Xserver rpm package. In Debian, there
is a changelog.Debian in each package to document the changes made to
the plain sources. Maybe RedHat has something similar. I have read on
this list that RedHat likes to include drivers with patches that are
not included in the original XFree86 realease.

Regards,
Tino

-- 
tino.keitel@innominate.com
dipl.-inf.                        Innominate Security Technologies AG
software engineer                                   networking people
tel: +49.30.6392-3308                      http://www.innominate.com/