Created attachment 437959 [details] screen image (should be showing firefix window in the middle area) Description of problem: Window does not always properly restore when clicking on button in lxde taskbar. Sometimes one sees a repeated section of the background where the restored window should be, sometimes nothing. Appears to happen irrespective of application being minimized (have encountered this with geany, lxterminal, firefox) Version-Release number of selected component (if applicable): F14 branched (64-bit) LXDE spin from 8-Aug nightly compose updated 10-Aug How reproducible: irregular, but once it happens, fairly frequently Steps to Reproduce: 1. Open firefox (or lxterminal or geany) 2. minimize to task bar 3. click on appropriate taskbar button to restore Actual results: Repeated background segments in place of restored window Expected results: Restored window of minimized app Additional info: Have not seen problem with 32-bit install; I believe all components are and configs identical (except for 64-bit vs. 32-bit). ~$ rpm -qa | grep ^lx lxappearance-0.4.0-2.fc14.x86_64 lxrandr-0.1.1-3.fc13.x86_64 lxterminal-0.1.8-1.fc14.x86_64 lxmenu-data-0.1.1-3.fc13.noarch lxsession-edit-0.1.1-4.fc13.x86_64 lx-20030328-5.fc12.x86_64 lxpolkit-0.1.0-0.1.20100402git5087383.fc14.x86_64 lxde-common-0.5.4-2.fc14.noarch lxlauncher-0.2.1-7.fc14.x86_64 lxtask-0.1.3-1.fc14.x86_64 lxpanel-0.5.6-1.fc14.x86_64 lxsession-0.4.4-1.fc14.x86_64 lxdm-0.2.0-4.fc14.x86_64 lxinput-0.1.1-4.fc14.x86_64 lxshortcut-0.1.1-3.fc13.x86_64 Other possiblly relevant packages: openbox-3.4.11.2-2.fc14.x86_64 obconf-2.0.3-4.fc12.x86_64 xorg-x11-drv-nouveau-0.0.16-9.20100615gitdb98ad2.fc14.x86_64 mesa-dri-drivers-experimental-7.9-0.6.fc14.x86_64
This could be a driver problem.
Forgot to mention that xcompmgr (xcompmgr-1.1.5-1.fc13.x86_64) was running when the error occurred. Just tried creating a new user to see if I could recreate the problem, but did not create ~/.config/autostart so xcompmgr wasn't started by default (xcompmgr is started by default for my normal user). New user did not experience the problem until I ran xcompmgr; then the next attempt to restore a window from the task bar gave the problem.
I have not been able to reproduce the problem in my 32-bit install - even tried killing and restarting xcompmgr, to no avail.
Jusyt tried LXDE spin x86_64 alpha RC4. Same problem, but this time, I had a terminal open and got repeating errors whenever I clicked on the LXTerminal button onthe task bar. FWIW, the block below was from a single click. error 8: BadMatch (invalid parameter attributes) request 148 minor 4 serial 176344 error 159: BadPicture request 148 minor 7 serial 176551 error 8: BadMatch (invalid parameter attributes) request 148 minor 4 serial 176580 error 159: BadPicture request 148 minor 7 serial 176695 error 8: BadMatch (invalid parameter attributes) request 148 minor 4 serial 176721 error 159: BadPicture request 148 minor 7 serial 177247 error 8: BadMatch (invalid parameter attributes) request 148 minor 4 serial 177271 error 159: BadPicture request 148 minor 7 serial 177623 error 8: BadMatch (invalid parameter attributes) request 148 minor 4 serial 177647 error 159: BadPicture request 148 minor 7 serial 178319 error 8: BadMatch (invalid parameter attributes) request 148 minor 4 serial 178345 error 159: BadPicture request 148 minor 7 serial 178733 error 8: BadMatch (invalid parameter attributes) request 148 minor 4 serial 178757 error 159: BadPicture request 148 minor 7 serial 179838 error 8: BadMatch (invalid parameter attributes) request 148 minor 4 serial 179864 error 159: BadPicture request 148 minor 7 serial 180574 error 8: BadMatch (invalid parameter attributes) request 148 minor 4 serial 180598 error 159: BadPicture request 148 minor 7 serial 181587 error 8: BadMatch (invalid parameter attributes) request 148 minor 4 serial 181613
*** This bug has been marked as a duplicate of bug 629105 ***