Sadly due to it being a proprietary driver there's not really much we can do for diagnosing gpu lockups. (The backtrace isn't interesting; the fault is in the kernel driver, not X, and the crash is just a symptom. GPU lockups always produce that same backtrace.)
Sadly due to it being a proprietary driver there's not really much we can do for diagnosing gpu lockups. (The backtrace isn't interesting; the fault is in the kernel driver, not X, and the crash is just a symptom. GPU lockups always produce that same backtrace.)