https://bugs.freedesktop.org/show_bug.cgi?id=89203 --- Comment #7 from smoki --- The best is if you can bisect mesa, if 10.3 worked fine it should be easy :) Or try various settings in game, might be only one which trigger slow case. Or if someone other want to reproduce it, apitrace trace will be usefull, etc... Otherwise more info is needed, like: Which version of Minecraft? Java or openjdk used? Did you use optifine? You might post your options.txt file, because as i said it might only happen with exact settings and also optionsof.txt in case you use optifine, etc... -- You are receiving this mail because: You are the assignee for the bug.