[Nouveau] [Bug 100760] Rapid flickering when an app is placed on the second Nouveau ZaphodHeads display

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=100760

--- Comment #4 from Ilia Mirkin <imirkin at alum.mit.edu> ---
If you have a second machine you can ssh in from, I'd recommend taking MATE/etc
out of the equation.

What I mean by that is that on the target machine, start X by just running "X"
on the terminal. This should light up both screens but have a black background
(as the old greyish mask was removed some time back). Then ssh in and run
DISPLAY=:0.1 xterm . If this doesn't work, that means that your second screen
(by which I mean X screen btw) is not set up properly. In such a case, please
provide your xorg log and xorg.conf.

Most people use Zaphod to merge heads from multiple GPUs into a single logical
screen with Xinerama. However I believe at least Mario Kleiner has, in the
past, tested something more akin to your use-case (and helped diagnose/fix
related bugs).

-- 
You are receiving this mail because:
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/nouveau/attachments/20170423/67de5100/attachment.html>