[Bug 87104] Screen corruption with dual-screen setup

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Mon Dec 8 23:07:07 PST 2014


--- Comment #7 from Michel Dänzer <michel at daenzer.net> ---
(In reply to freenode from comment #6)
> Does the radeon driver have some kind of "very verbose" mode? I'd like to
> see what there will be logged right as it happens.

You can write 1 to /sys/module/drm/parameters/debug to enable driver debug
messages in dmesg and 0 again to disable them.

> Or is there anything else i could activate to get more verbose logging, kinda
> like a system wide logging service that shows everything tagged with ns
> timestamps if it has to be..

The systemd journal is supposed to be something like that, though it can't log
something that isn't printed in the first place either. :)

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