Vanishing Mouse After Xrandr

[Jason Van Patten]

Hi folks -

I routinely use xrandr (through KDE) to resize the X screen on my laptop, 
when I dock it or de-dock it.  Every so often, after resizing it down to 
1600x1200 (from either 1920x1440 or 2048x1536) my mouse pointer vanishes. 
KDE still sort-of responds to a moving mouse because the panel at the bottom 
of the screen appears when I move the mouse (or the imaginary one) down.

But, I can't get any of the windows into focus.  Nor can I click on 
anything.  Nor do I have any sort of keyboard input other than 
CTRL-ALT-BACKSPACE.  Once I restart the server, all is well.

Is there any set of logs or diags I can get for you guys the next time it 
happens?  I can't reproduce it at will, but I figure it'll happen again 
within the next few days.

Hardware: IBM Thinkpad T42p with ATI FireGL T2
Software: Fedora Core 3 / Xorg 6.8.1.

The xorg.conf follows, if it's at all interesting:

Section "ServerLayout"
         Identifier     "single head configuration"
         Screen      0  "Screen0" 0 0
         InputDevice    "Mouse0" "CorePointer"
         InputDevice    "Keyboard0" "CoreKeyboard"
         InputDevice    "Synaptics" "AlwaysCore"
EndSection

Section "Files"

         RgbPath      "/usr/X11R6/lib/X11/rgb"
         FontPath     "unix/:7100"
EndSection

Section "Module"
         Load  "dbe"
         Load  "extmod"
         Load  "fbdevhw"
         Load  "glx"
         Load  "record"
         Load  "freetype"
         Load  "type1"
         Load  "synaptics"
         Load  "dri"
EndSection

Section "InputDevice"

         Identifier  "Keyboard0"
         Driver      "kbd"
         Option      "XkbModel" "pc105"
         Option      "XkbLayout" "us"
EndSection

Section "InputDevice"
         Identifier  "Mouse0"
         Driver      "mouse"
         Option      "Protocol" "IMPS/2"
         Option      "Device" "/dev/input/mice"
         Option      "ZAxisMapping" "4 5"
         Option      "Emulate3Buttons" "yes"
EndSection

Section "InputDevice"
         Identifier  "Synaptics"
         Driver      "synaptics"
         Option      "Device" "/dev/input/mice"
         Option      "Protocol" "auto-dev"
         Option      "Emulate3Buttons" "yes"
EndSection

Section "Monitor"
         Identifier   "Monitor0"
         VendorName   "Monitor Vendor"
         ModelName    "LCD Panel 1600x1200"
         DisplaySize  410        300
         HorizSync    30.0 - 130.0
         VertRefresh  50.0 - 160.0
         Option      "dpms" "off"
         Modeline "2048x1536"  340.48  2048 2216 2440 2832  1536 1537 1540 
1603 -hsync +vsync
         Modeline "1920x1440"  341.35  1920 2072 2288 2656  1440 1441 1444 
1512 -hsync +vsync
EndSection

Section "Device"
         Identifier  "Videocard0"
         Driver      "radeon"
         VendorName  "Videocard vendor"
         BoardName   "ATI FireGL Mobility T2"
         Option      "SubPixelOrder" "NONE"
         Option      "MonitorLayout" "LVDS,CRT"
         Option      "MergedFB" "TRUE"
         Option      "MetaModes" "1600x1200-2048x1536 1600x1200-1920x1440 
1600x1200-1600x1200"
         Option      "CRT2Position" "Clone"
         Option      "CRT2HSync" "30.0-130.0"
         Option      "CRT2VRefresh" "50.0-160.0"
         Option      "DynamicClocks" "TRUE"
EndSection

Section "Screen"
         Identifier "Screen0"
         Device     "Videocard0"
         Monitor    "Monitor0"
         DefaultDepth     24
         SubSection "Display"
                 Viewport   0 0
                 Depth     16
                 Modes    "800x600" "640x480"
         EndSubSection
         SubSection "Display"
                 Viewport   0 0
                 Virtual 2048 1536
                 Depth     24
                 Modes     "2048x1536" "1920x1440" "1600x1200" "1280x1024" 
"1024x768" "800x600" "640x480"
         EndSubSection
EndSection

Section "DRI"
         Group        0
         Mode         0666
EndSection


-- 
Jason Van Patten