[Bug 65192] [r600g] Screensavers lock up machine (screen goes blank, keyboard unresponsive, sound loops; sysrq/ssh possible)

https://bugs.freedesktop.org/show_bug.cgi?id=65192

--- Comment #3 from Luzipher luziphermcleod@yahoo.ie --- I did as suggested and ran:

R600_HYPERZ=0 /usr/lib/misc/xscreensaver/antmaze

This worked more often, but I could make it crash when using different screensavers. Using

R600_HYPERZ=0 /usr/bin/xscreensaver-demo

and switching between screensavers crashed as often as without R600_HYPERZ=0. Also, the screensaver juggler3d crashed twice when exiting the window it ran in.

R600_DEBUG=sb didn't help either.

I also confirmed that environment variables are working as they should via setting GALLIUM_HUD.