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Hello, I just did a fresh install of Arch on my desktop, and I'm trying to get triple monitors working. My setup is:
1 x DVI-D on R9 280X (primary display = DVI-1)
2 x DVI-D on HD 5770 (left display = DVI-1-2, right display = DVI-1-1)
All monitors are identical 2560x1440 (QNIX QX2710) monitors. I'm using the open source drivers (radeon) drivers, and testing this on i3 (the WM i plan to use). I tried doing this with cinnamon, however I could only get 2 screens going at once, primary and another on the 5770.
in order to get all the monitors enabled, once i3 starts up i open a terminal and run:
xrandr --setprovideroutputsource 1 0 && xrandr --output DVI-1-2 --preferred --left-of DVI-1 --output DVI-1-1 --preferred --right-of DVI-1This line enables all monitors, which I thought meant it was good. However, it lags. Specifically, it lags when moving mouse from center screen to either of the side ones. It completely locks up for 3-5 seconds, but then it catches up. However, it doesn't seem to lag when I move from one of the side displays to the center.
xrandr doesn't see the monitors until i run --setprovideroutputsource, and it seems to crash my xorg if I setup right screen, then the left screen.
I read online that trying to force accelmethod to exa in xorg.conf.d/ might fix it, however that didn't work. Otherwise, I've read again online that glamor is the cause of this issue. What should I do if that's the case?
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