[mythtv-users] Finally got tv out to work properly

Mark J. Small msmall at eastlink.ca
Wed Aug 3 15:59:15 UTC 2005

On August 3, 2005 12:52 pm, Michael T. Dean wrote:
> Mark J. Small wrote:
> >When the wife's away, the geek can play....
> >
> >A while back I replaced the video card in my frontend.  It used to be a
> > TNT2, but I replaced it with an MX440.  I was hoping to be able to get
> > rid of my scan converter and use the TV out on the card.
> >
> >However, whenever I tried to use the TV out, X (xfree86 4.3.0 debian
> > packages) would crash on startup with a signal 11.
> >
> >Well last night I finally had a chance to sit down and troubleshoot the
> > thing. It turns out that glx was causing the problem.  If I comment out
> > the glx module, then TV out will work nicely.
> >
> >Anyone know why glx and tvout won't play nice?
> Are you sure you disabled glx and not GLCore?
> I'm using a Chaintech GF4 MX440's TV out and am using glx without any
> problems.  However, as described in the installation instructions for
> the NVIDIA driver (
> ftp://download.nvidia.com/XFree86/Linux-x86/1.0-7667/README.txt --search
> for the first occurrence of "GLCore"), you *must* disable the GLCore
> module to properly install the NVIDIA drivers.  (You are also told to
> enable the glx module, so...  I highly recommend reading the README (of
> every package you ever install on your box, for that matter).
> My guess is that you currently have GLCore enabled.  With both glx and
> GLCore, your system is using both the NVIDIA and the X GL libraries,
> which causes conflicts.  Through "random chance," you commented out one
> of them (glx) and it worked--with only the X libraries (and software
> GL)--but you're losing out on some very useful capabilities of the
> driver.  If you flip them (disable GLCore and enable glx), you should
> get hardware-based GL acceleration.
> Mike

Nope, GLCore is disabled too.  GLX works great for me until I try to use TV 
out.  Then I get signal 11 on startup.  


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