Bug 739662 - gtk-window-decorator doesn't work on NVIDIA quad monitor setups.
Summary: gtk-window-decorator doesn't work on NVIDIA quad monitor setups.
Alias: None
Product: Fedora
Classification: Fedora
Component: compiz
Version: 15
Hardware: x86_64
OS: Linux
Target Milestone: ---
Assignee: leigh scott
QA Contact: Fedora Extras Quality Assurance
Depends On:
TreeView+ depends on / blocked
Reported: 2011-09-19 18:29 UTC by Ted
Modified: 2012-08-07 16:48 UTC (History)
1 user (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2012-08-07 16:48:34 UTC

Attachments (Terms of Use)
xorg.conf (1.75 KB, application/octet-stream)
2011-09-19 18:43 UTC, Ted
no flags Details

Description Ted 2011-09-19 18:29:54 UTC
Description of problem:
Note:  Everything here worked reasonably well with emerald before the compiz 0.9.5 update.

Since Emerald is no longer an option with Compiz, GTK Window Decorator should be fixed so that it will work with setups that have more than 2 monitors.  If you only have 2 monitors to test with, try disabling twinview and you will probably get similar results.

The first major problem that I've encountered is that when the WM launches it only starts on desktop 0.0 and doesn't appear to be multi desktop aware.  To work around it, I fire off a shell script that looks something like this on startup:


# Wait for the desktop to settle
sleep 15s

export DISPLAY=:0.1
gtk-window-decorator --replace &
sleep 3s
export DISPLAY=:0.0


This gets me compiz in a semi-usable state on the top and bottom displays.  Unfortunately, there seem to be some pretty annoying bugs.  The first and most severe is that compiz will only allow me to type in the last monitor that the mouse was in until I switch windows back and forth on the current monitor.  The easiest way to reproduce this problem is to open a thunderbird session on the top desktop and a firefox session on the bottom monitor and start typing.  It sometimes works correctly with other apps, but it screws up every time with thunderbird / firefox (I have click to focus disabled if it makes a difference).  This problem makes the desktop completely unusable as you never are quite sure what window you may be typing in. 

I can no longer highlight text in terminal windows.

The next problem that I noticed is that "shade" mode on the windows is completely broken.  Press ctrl-alt-s on any window and it go into a shaded state, then pop back into an empty window that you can't interact with at all.  I don't think this error is specific to quad monitors.

Click to raise appears to be broken in weird ways now as well.  If you open a terminal for example, and another random app, such as the file manager, clicking on the terminals header is the only way to raise it if it is under the file manager.

I've also noticed that the shelf plugin no longer works.  If you put a window in the shelf mode, you can no longer interact with it at all.  Can't click it, can't move it, can't take it out of shelf mode without killing compiz.

I've been using all of this stuff for at least 6 years now and it has always had bugs here and there but it usually doesn't bother me that much.  I like compiz and find it enhances my productivity, but it's just totally broken now.

Version-Release number of selected component (if applicable):

How reproducible:
Always (I have tested this on 3 different computers with similar setups)

Steps to Reproduce:
1. Install an NVIDIA Quattro card or 2 nvidia cards
2. Configure X using the included sample config and current nvidia proprietary driver
3. Despair.
Actual results:
A buggy broken desktop that can't be used.

Expected results:
A beautiful functional desktop that enhances productivity

Additional info:
A sample xorg.conf file is attached that reproduces it easily.

Comment 1 Ted 2011-09-19 18:43:21 UTC
Created attachment 523886 [details]

Comment 2 leigh scott 2011-09-19 19:40:02 UTC
I only have a single monitor so I'm unable to test multi screen setups.

How are you starting compiz?, fusion-icon IMO is the best way.
Also you should use the gconf backend for compiz.

Comment 3 Ted 2011-09-19 20:07:53 UTC
I use fusion-icon to start compiz.  I haven't used gconf for a backend in a long time.  I tried turning it on, but I haven't seen any improvement.

Comment 4 Fedora End Of Life 2012-08-07 16:48:36 UTC
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