https://bugs.winehq.org/show_bug.cgi?id=30967
--- Comment #18 from Henri Verbeet hverbeet@gmail.com --- (In reply to Adam Bolte from comment #17)
If this bug is valid, it's Nvidia or Window-manager specific. I can't reproduce this on Mesa/radeonsi with Xfce.
At least the panning part is likely NVIDIA specific. Since this report was filed it has come to my attention that RandR panning seems to be enabled by default on NVIDIA (but I didn't personally verify that), while AFAIK it isn't on other drivers. It has been reported that updating the screen size to match the display resolution on mode changes avoids that issue, but that's no necessarily correct or possible on multi-head configurations. Explicitly disabling panning on mode changes in Wine would also be undesirable in case the user enabled panning on purpose.