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[–]magnora7 2 insightful - 1 fun2 insightful - 0 fun3 insightful - 1 fun -  (5 children)

I looked a bit, this might help (another commenter found the deleted comment, which is what might help): https://www.reddit.com/r/linuxquestions/comments/3cl7zp/multiple_monitor_vsync_with_nvidia_proprietary/

[–]Optimus85[S] 3 insightful - 1 fun3 insightful - 0 fun4 insightful - 1 fun -  (4 children)

Thanks a lot for taking the time to help. Went to the Linux Mint forum and saw a couple of fixes for my problems. I had no xorg.conf file in etc/X11 so had to sudo cat xorg.conf then ran nvidia-settings as root, checked "force full composition pipeline" for both monitors and saved to xorg.conf(Then got a dialog box. Apparently you need to truncate the metamodes list as X server will fail if the list is greater than 900...)). I think I have things set up correctly in xorg.conf now: Option "metamodes" "DVI-D-0: nvidia-auto-select +0+0 {ForceCompositionPipeline=On, ForceFullCompositionPipeline=On}, HDMI-0: nvidia-auto-select +1920+0 {ForceCompositionPipeline=On, ForceFullCompositionPipeline=On}". We'll see how it works out... :)

[–]wizzwizz4 2 insightful - 1 fun2 insightful - 0 fun3 insightful - 1 fun -  (3 children)

Did it work?

[–]Optimus85[S] 1 insightful - 1 fun1 insightful - 0 fun2 insightful - 1 fun -  (2 children)

I'm still getting a bit of tearing when watching Netflix but it looks fine system-wide so I'm assuming the issue is with Firefox. Will try with Chromium instead.

[–]wizzwizz4 2 insightful - 1 fun2 insightful - 0 fun3 insightful - 1 fun -  (1 child)

Get Ungoogled Chromium if you really must go with Chromium. But I expect it's not Firefox per se that's at fault. Does it also occur with VLC?

[–]Optimus85[S] 2 insightful - 1 fun2 insightful - 0 fun3 insightful - 1 fun -  (0 children)

I didn't use VLC but yes, it still happens. Like I said, the shell command resolves the issue up to a point but doesn't seem to agree with a dual monitor setup and even though the "force full composition pipeline" option is enabled for both monitors in the xorg.conf, those options are disabled in nvidia-settings after reboot. Anyway, I can't objectively look at the screen at this point and will have to smoke more weed to mitigate the effects. Cheers and thanks!