I am running 16.04 on my desktop pc and when I add a second monitor it causes the screen to flicker, especially when interacting with GNOME.
I have an amd radeon gpu.
01:00.0 VGA compatible controller : Advanced Micro Devices, Inc. [AMD/ATI] Hawaii PRO [Radeon R9 290/390] [1002:67b1] (rev 80) Subsystem: Micro-Star International Co., Ltd. [MSI] Hawaii PRO [Radeon R9 290] [1462:2015]
--scale 1.0001x1.0001 hack, from here, did not help.
Any idea how I can fix this so I can get back to using multiple monitors?
The flickering seems to be caused by interacting with gnome desktop env.
Here is a list of actions that cause flickering:
- Opening, and using, the search box from the launcher(this is the worst flickering)
- Using alt+tab
- Clicking on the desktop
- Clicking anywhere on a screen after clicking on the desktop of the other screen
Weirdly, interacting with the toolbar at the top of either screen does not cause any flickering.