For a while now, some screensavers sometimes lock up my machine. That means all
screens go blank, the keyboard is unresponsive (numpad-key doesn't toggle the
indicator led), the sound loops. But I still can use ssh from a remote machine
and the magic-sysrq-keys also work.
There is nothing to see in neither /var/log/messages (acquired via netconsole)
nor /var/log/Xorg.0.log.
I can trigger the bug (or regression, I think it used to work about 2 months
ago) reliably by using the Xfce4 screensaver settings application, which has a
preview of the screensaver selected. When switching between screensavers, the
lockup quickly occurs. A good candidate is the screensaver named "AntMaze", it
alsmost always locks up my machine (only worked once so far).
Other stuff works quite solid, Half-Life 2 worked multiple hours today.
Setting R600_HYPERZ=0 in /etc/environment didn't help. Also occurs on kernel
3.8.0-rc7.
I'm happy to provide more info if needed.
System Specs:
Intel Core i7-965
2x Radeon HD4870 (rv770, currently only one active without xorg.conf), 2
Monitors
Gentoo Linux
Kernel 3.10.0-rc3
Mesa 9.2.0 (git-60f9b72) git commit 60f9b722ef80c499a94b4e5ab7304dcd739ea569
Revert "i965: fix problem with constant out of bounds access (v2)"
xorg-server-1.14.1
libdrm git commit 8a88e349975a64676f143183e835e6d296f29627 modetest: Make
RGB565 pwetty too
xf86-video-ati git commit commit bd2557ea5ef84b975060e929d5ece53ec464336f DRI2:
add interpolated blanks to frame number in event handlers