You have been subscribed to a public bug:
Binary package hint: xserver-xorg-video-intel
Ubuntu Hardy Beta + all updates as of the date of posting on a Clevo
notebook with an Intel GMA-950 graphics controller (945GM motherboard
chipset).
I've found that the black flashes and flickers appear in two cases reliably:
1) When initializing the "Expose" plug-in, all virtual desktops flash black in
their entirety.
2) When switching virtual desktops with the "Desktop Wall" plug-in, during the
animation and on the destination desktop, windows and the desktop flash.
Knowing that EXA has been enabled by default for the Intel driver
recently, I've tried AccelMethod XAA, but the flashes are still there.
Also played with combinations of FramebufferCompression, TripleBuffer
and PageFlip to no avail.
** Affects: xorg (Ubuntu)
Importance: Medium
Status: Triaged
--
Windows and desktops flicker and flash black with Compiz enabled with the Intel
video driver (945GM)
https://bugs.edge.launchpad.net/bugs/213856
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