Red Hat Bugzilla – Bug 193605
Display problem when viewing Vino server output with Xinerama screens
Last modified: 2013-03-05 22:45:34 EST
Description of problem:
I have set up two monitors connected to a Nvidia 6200AGP card. One monitor is
connected to VGA output, the other to DVI output. Using Livna 87.62 nvidia
drivers. Setup Xinerama configuration to 'on' to share the desktop across two
monitors. Set up xorg.conf as:
Identifier "Multihead layout"
Screen 0 "Screen0" RightOf "Screen1"
Screen 1 "Screen1" 0 0
InputDevice "Mouse0" "CorePointer"
InputDevice "Keyboard0" "CoreKeyboard"
Option "Xinerama" "on"
Option "Clone" "off"
Each monitor displays 1280x960 (however this problem is also apparent at 800x600
for each monitor).
When using the Real VNC viewer (version 4.1.1) on a windows computer and
connecting to the Vino server output, I am presented with a VNC viewer desktop
of size 2560x960 as expected. However, the left side of the VNC viewer shows the
desktop displayed on the left linux monitor with a few block artifacts and the
right side of the viewer is black where it should be showing the contents of the
right linux monitor. Moving windows around on the left monitor causes 'tearing'
in the windows on the left side on the VNC viewer, and the VNC viewer window is
generally really sluggish and unresponsive.
These problems are also shown when using VNC viewer on the same FC5 computer and
looping the connection back to port 5900 (Vino server port).
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Enable xinerama in xorg.conf and extend desktop across two monitors.
2. Enable remote desktop under Gnome preferences menu.
3. Start VNC viewer under Gnome Accessories menu or a VNC viewer on another
4. Scroll to the right side of the VNC viewer window.
The right side of the VNC viewer window is black.
The right side of the VNC viewer window should show the desktop of the right
linux computer monitor.
A bug report describing similar issues under vino-2.8.1-1 in FC3 is at:
Unsure whether it is exactly the same issue. However, this is a problem in FC5,
not FC3, and it was suggested to me on fedoraforum.org to file this as a new bug
Fedora apologizes that these issues have not been resolved yet. We're
sorry it's taken so long for your bug to be properly triaged and acted
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This bug is open for a Fedora version that is no longer maintained and
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