Comment 3 for bug 1687413

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Mario Limonciello (superm1) wrote :

There has been a lot of work upstream in the graphics stack around MST, but not all of it has been merged yet. Would you be able to test with drm-next to see if the problem is resolved there?
http://kernel.ubuntu.com/~kernel-ppa/mainline/drm-next/current/

If it's resolved there, there will need to some effort to bisect the particular commit that fixed it and backport it to an Ubuntu kernel.