As you are using an intel 945 and the bug happens when you have an extended desktop with width > 2048 and there is the error message "(EE) intel(0): Failed to allocate framebuffer." this seems to be freedesktop bug 28515 (libdrm) which is fixed in:
commit 726210f87d558d558022f35bc8c839e798a19f0c intel: Limit tiled pitches to 8192 on pre-i965. Fixes: Bug 28515 - Failed to allocate framebuffer when exceed 2048 width https://bugs.freedesktop.org/show_bug.cgi?id=28515 ** Bug watch added: freedesktop.org Bugzilla #28515 http://bugs.freedesktop.org/show_bug.cgi?id=28515 -- [maverick] Non-mirrored dual-screen gives narrow display on secondary monitor https://bugs.launchpad.net/bugs/619663 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in ubuntu. _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
