https://bugs.winehq.org/show_bug.cgi?id=48428
--- Comment #4 from Zhiyi Zhang zzhang@codeweavers.com --- (In reply to Tomáš Bžatek from comment #3)
(In reply to Zhiyi Zhang from comment #2)
Confirmed. Tiled displays are currently unsupported. Wine needs to support RandR 1.5 and TILE property in the outputs.
Thanks for confirming this. Does this qualify as a regression that should be reverted for the stable 5.0 release?
Note that I basically didn't test anything else other than Lightroom, no idea what else is broken.
I guess it can be called a regression but I don't think it should be reverted. For the moment, if you know how to compile Wine, you can try bumping up the priority of Xinerama display device handler in winex11.drv/xinerama.c#L323. That should be able to handle tiled displays.