This is a known bug in 12.10 but it may be exacerbated by the graphics sub-system on your motherboard, assuming you have a motherboard with integrated graphics from the chipset's north bridge.
It appears that the error is caused by some sort of a disconnect between Unity and certain graphics hardware. A great many people are running into this bug.
The short answer is that you need to go back to 12.04. When I gave up on 12.10 and went back to 12.04 I no longer got this error. Someone in another thread had suggested that using 2D graphics in 12.04 would fix the compiz problem but I had no issues with 3D in 12.04, in fact 2D didn't work properly.
What made no difference:
Upping the shared graphics memory: Still got the error in 12.10 but not 12.04. Using 2D in 12.04: Actually didn't work at all, graphics was all screwy.
This error happens only with certain graphics cards.
Maraz έγραψε:Λοιπόν θα πρέπει να εγκαταστήσεις τους drivers της κάρτας σου χειροκίνητα, γιατί δεν υποστηρίζονται 100% οι κάρτες γραφικών AMD. Κονσόλα(terminal) ξέρεις να δουλεύεις;
Μέλη σε αυτή την Δ. Συζήτηση: Δεν υπάρχουν εγγεγραμμένα μέλη και 2 επισκέπτες