GNOME Bugzilla – Bug 609953
Flicker with notifications and clock interaction
Last modified: 2010-03-31 11:43:21 UTC
I'm having gnome-shell flickering many times when notifications pop-up or when I open the panel clock. The screen just gets dark for very short periods of time (e.g. less then a second. I'm using the proprietary nvidia drivers with fedora 12.
I confirm this. I'm having the exact same issues on Ubuntu Karmic with Gnome Shell from the Ricotz PPA. My graphics card is GeForce FX5700 and I use the newest binary drivers available for this card (from the Karmic repos). I've been advised on the Gnome Shell IRC channel to try using the CLUTTER_VBLANK=none environment variable. This does makes things a little better as the flickering is far less frequent, but it still happens, mainly with notifications.
*** This bug has been marked as a duplicate of bug 613936 ***