[Bug 81476] three monitors on two radeon cards works with some layouts not others

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Fri Jul 18 13:20:55 PDT 2014


--- Comment #8 from Ian! D. Allen <idallen at idallen.ca> ---
(In reply to comment #7)
> Try starting X without a window manager or a simple one like twm.
> It should work correctly because no OpenGL operations would be used
> in that case so the 3D engine limits are not getting hit.

All along I've been using the vtwm window manager, not the fancy compiz.

I just tried using twm instead of vtwm; no improvement.

The desktop doesn't work across two cards with three monitors; the two monitors
on the first card have video crap on them.   The video crap changes a little
bit right at the top if I drag windows onto them from the working third
monitor, but they are otherwise useless (unless I invert them).

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