Clipped screen on dual screen+compiz+nvidia

Question

Hello everybody,
  I am connecting an external display to my laptop. The laptop display is 1280x800, while the external display is 1280x1024.
  NVIDIA is configured to run two separate Xscreens, opposed to the TwinView alternative.
  Compiz works on either screens without slowdowns, but the lower area of the external display is black.
  It seems that Compiz is running on each screen at 1280x800, and since the external display is larger, a black band is shown at the bottom. How do I configure Compiz to use the full resolution on the external display?
  Metacity isn't affected by this issue.
  Did you ever experience that? There's not much on Google about that (or too much, searching for compiz+nvidia+dual screen gives too much results )
  Forgot to say: this applies to Compiz 0.7.8 and Compiz 0.8.0 upgraded today. Affects Ubuntu and Arch either using NVIDIA 177.x or 180.x.
Cheers,
eaZy
Last edited by eazy (2009-04-06 16:30:12)

Answer 1

eazy wrote:
MorningWood wrote:I actually came across this thread because I'm experiencing the exact same issue. Anyone know how to fix this?
I still haven't found a solution, but I managed to work with Compiz on the main screen (in my case the laptop) and Metacity on the other screen...
I'm starting compiz with
DISPLAY=:0.0 compiz --replace --only-current-screen
and metacity with
DISPLAY=:0.1 metacity --replace
This is working, apart of small focus bugs: changing from an active window on a screen to an active window to another screen is impossible, the only solution is clicking on a unfocused object and returning the focus to the target window.
That's actually the work around I was looking for! Thanks a lot. I'm using a 26" tv as the secondary display and compiz is kind of pointless on that, at least to me. For some odd reason I've also noticed that when I set the larger display to a resolution lower than the main display (the laptop lcd), there is no bar with compiz. I don't know how solid this is because after a few restarts it went back to the intended resolution, but since doing the same step again it's been working for now.
To illustrate what I mean:
Section "Screen"
Identifier "Screen0"
Device "Device0"
Monitor "Monitor0"
DefaultDepth 24
Option "AddARGBGLXVisuals" "True"
Option "TwinView" "0"
Option "metamodes" "DFP-0: 1280x800_60 +0+0"
SubSection "Display"
Depth 24
EndSubSection
EndSection
Section "Screen"
# Removed Option "metamodes" "DFP-0: 1280x800_60 +0+0"
Identifier "Screen1"
Device "Device1"
Monitor "Monitor1"
DefaultDepth 24
Option "TwinView" "0"
Option "metamodes" "DFP-1: 1280x720 +0+0"
SubSection "Display"
Depth 24
EndSubSection
EndSection