https://forum-en.gw2archive.eu/forum/support/bugs/Black-screen-after-patch/first#post4894706
tldr: disable vsync(both ingame and in CCC/Nvidia contol panel)
Had this issue after last big patch, turned off VSYNC and anything related to it and now i can run everything on “ultra”, even supersampling which didn’t work before the patch in fullscreen mode. R9 290x in crossfire. This fixes it but i guess i have to live with the coil whine caused by the 200fps im getting.
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