[ATrpms-users] [possibly OT] nvidia twinview with TV out and mythtv

[Thomas Börkel]

HI!

Chris Rouch wrote:
> I have an Nvidia GeForce4 MX 440 card with an analog out and TV out. The
> analog is connected to a monitor and runs happily at 1152x864. 
> 
> Recently I installed mythtv and decided to connect the TV out to my TV.
> I set up xorg.conf to use twinview in clone mode. However the TV will
> only run at 1024x768. This mostly works. I can set mythtv to run at
> 1024x768 and it will appear as a window on my monitor while appearing
> full screen on the TV. But some things don't work as expected.
> 
> xscreensaver thinks the screen is only 1024x768 and so only blanks part
> of the monitor.
> 
> firefox won't save a geometry bigger than 1024x768 (I like to have it
> nearly full screen).
> 
> Conversely, mplayer when run from mythtv thinks full screen is 1152x864,
> so on the TV the bottom right part of the picture is missing.
> 
> Can anyone provide solutions to these? I append the appropriate part of
> xorg.conf, in case I'm doing something stupid.

The problem is that the TV out really has a max. of 1024x768, so I think 
you should not clone the main (analog) desktop.

You could set up TwinView to have one big desktop, where you can move 
the mouse and windows from one to the other.

Or you set up a seperate X display on vt9 for example for the TV, that 
is started on demand (when starting mythfrontend). But then you only 
have the TV *or* the monitor active (you switch between those two with 
CTRL-ALT-F7/F9).

The latter is what I use, because I do not need MythTV often on my 
working PC. But I heard that you loose 3D acceleration when using 
TwinView, so I don't.

Thomas