[Bug 98608] DisplayPort on Radeon HD 5770 not working for 3440x1440 display

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Mon Nov 7 20:13:26 UTC 2016


--- Comment #3 from Robin <bugzilla at robinphillips.net> ---
It works on any other mode that I've tried except for the full resolution mode.
eg. 2560x1080 works (as I wrote above, I don't know if you just missed that or
if I'm not understanding your question properly?).

The only mode where the monitor doesn't display anything is the full 3440x1440

The 3440x1440 mode does work through DisplayPort when I attach my laptop
(Windows) to it when going through the same KVM switch. It also works with the
PC & Radeon card when running Windows. (The presence of the KVM switch makes no
difference, it still doesn't work if I hook it up directly).

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