Bug 4342

Summary: cursor becomes confined to first xinerama screen - cursor wraps to other side of screen
Product: xorg Reporter: Charles R. Anderson <cra>
Component: Driver/RadeonAssignee: Xorg Project Team <xorg-team>
Status: RESOLVED WORKSFORME QA Contact: Xorg Project Team <xorg-team>
Severity: normal    
Priority: high CC: thecubic
Version: 6.8.2   
Hardware: x86 (IA32)   
OS: Linux (All)   
URL: https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=164799
Whiteboard:
i915 platform: i915 features:
Attachments:
Description Flags
xorg configuration
none
xorg log none

Description Charles R. Anderson 2005-09-02 12:53:00 UTC
After starting Open Office, the X cursor can no longer be moved off the left
edge of Screen 0 onto the right edge of Screen 1.  Instead, the cursor wraps to
the right edge of Screen 0.  It seems that there may be a way to "fix" the
behavior without restarting X, but I only stumbled upon it once.  Killing Open
Office doesn't fix it, and changing virtual desktops with the mouse or keyboard
doesn't fix it.  I'm not sure if this is an xorg-x11 / xinerama bug, an
openoffice.org bug, a metacity bug, or something else.

Version-Release number of selected component (if applicable):
6.8.2-37

How reproducible:
Sometimes.  I haven't narrowed down the exact steps, but it seems to happen when
starting oocalc from the command line, only sometimes, and may have something to
do with the window being placed on the opposite display from where the mouse
cursor is currently.

Steps to Reproduce:
1. Set up dual displays in Xinerama mode.
2. Open a terminal window on Screen 0.
3. run "oocalc" such that metacity places the window on Screen 1, e.g. first
fill up the empty space on Screen 0 with other windows.
  
Actual results:

Open Office Calc starts up on Screen 1, and immediately the X cursor becomes
confined to Screen 0.  Moving the cursor across the left edge of Screen 0 just
causes the cursor to warp or wrap to the right edge of the same screen.

Expected results:

The mouse cursor should not become confined.  The full use of both screens in
Xinerama mode should be retained regardless of what applications are started.

Additional info:

FC4, GNOME desktop, fairly standard settings (except focus follows mouse /
Select windows when the mouse moves over them), Clearlooks/Clearlooks theme,
metacity window manager.  OSS radeon driver, ATI Radeon X300 PCI-Express card,
dual DVI outputs connected to Dell 2001FP monitors.

Component versions:

xorg-x11-6.8.2-37
metacity-2.10.0-2.fc4
gnome-panel-2.10.1-10.2
openoffice.org-core-1.9.117-3.1.0.fc4

BTW, something I did just "fixed" the cursor.

lspci:

01:00.0 VGA compatible controller: ATI Technologies Inc RV370 5B60 [Radeon X300
(PCIE)] (prog-if 00 [VGA])
        Subsystem: ATI Technologies Inc: Unknown device 0402
        Flags: bus master, fast devsel, latency 0, IRQ 11
        Memory at d0000000 (32-bit, prefetchable) [size=128M]
        I/O ports at dc00 [size=256]
        Memory at dfde0000 (32-bit, non-prefetchable) [size=64K]
        Expansion ROM at dfe00000 [disabled] [size=128K]
        Capabilities: [50] Power Management version 2
        Capabilities: [58] Express Endpoint IRQ 0
        Capabilities: [80] Message Signalled Interrupts: 64bit+ Queue=0/0 Enable-
        Capabilities: [100] Advanced Error Reporting
Comment 1 Charles R. Anderson 2005-09-02 12:54:57 UTC
Created attachment 3156 [details]
xorg configuration

Configuration created by system-config-display, with one manual edit, changing
ServerLayout "Screen0" RightOf "Screen1" instead of LeftOf.
Comment 2 Charles R. Anderson 2005-09-02 12:55:36 UTC
Created attachment 3157 [details]
xorg log
Comment 3 Timo Jyrinki 2007-02-22 02:56:38 UTC
Any updates, Charles? Are you running FC6 nowadays?
Comment 4 Daniel Stone 2007-02-27 01:27:54 UTC
Sorry about the phenomenal bug spam, guys.  Adding xorg-team@ to the QA contact so bugs don't get lost in future.
Comment 5 Charles R. Anderson 2007-05-28 12:12:41 UTC
Honestly I haven't been running Xinerama in a long time since I discovered MergedFB, so I can't say whether this is still happening or not.
Comment 6 Alex Deucher 2007-11-12 15:13:41 UTC
closing.

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