https://bugs.winehq.org/show_bug.cgi?id=34704
--- Comment #3 from christian.erdmann@tu-dortmund.de --- I can confirm this. It started happening on both of my systems recently: Desktop PC: 3.16.3-gentoo x86_64 Intel(R) Core(TM) i5 CPU 750 @ 2.67GHz GenuineIntel GNU/Linux Nvidia GeForce GTX660 Ti (proprietary driver version 346.22) Wine 1.7.29
Laptop: 3.14.27-gentoo x86_64 Intel(R) Core(TM) i5-3320M CPU @ 2.60GHz GenuineIntel GNU/Linux Intel HD4000 integrated GPU Wine 1.7.29
I tested: Duels of the Planeswalkers 2013, Magic 2014, Dark Messiah of Might and Magic. Symptoms are: Gradual UI and texture corruption, corruption after changing graphics settings, garbled fonts, missing text, black textures (screenshots attached). On both of my systems libtxc_dxtn (1.0.1) is installed.
Unfortunately I don't know what I changed, that causes it.