Andrew, with your patch the issue is still there in a weak shape: When I open the inventory in TES IV Oblivion, don't move the cursor for some seconds and then move it again, there is always a frametime spike: https://abload.de/img/screenshot_20190917_2f4jds.png It's not there with XResetScreenSaver calls completely disabled in Wine (by reverting the commit mentioned by Pierre-Eric). It appears 100% reproducible.
