[mythtv] [mythtv-commits] Ticket #5594: starting mythfrontend for second screen gives black-video-screen
Michael T. Dean
mtdean at thirdcontact.com
Sat Aug 2 13:47:24 UTC 2008
On 08/02/2008 05:48 AM, MythTV wrote:
> #5594: starting mythfrontend for second screen gives black-video-screen
> Starting mythfrontend with:
> # mythfrontend -display :0.1
> _from_ display 0.0 gives the gui but only black video screen.
> starting with:
> # DISPLAY=:0.1 mythfrontend -display :0.1
> works. Looks like the parameter -display will not be used for the xv-
That's a driver issue. Nearly all Linux video drivers provide Xv
implementations that work only on the first display. There's nothing
Myth can do about it.
See, for example, the NVIDIA README (and, I'm sure you'll find similar
info in other drivers' READMEs).
(the "Do video overlays work across both display devices" part).
If you want Myth to draw video on the other display, you'll have to use
something other than Xv as your video renderer, such as xshm or (if
necessary) xlib. It's possible that OpenGL might work, but it's not
really ready for primetime, yet.
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