Spotted this report after bisecting :(
So, I can confirm the same behaviour under kde5/gentoo/qt-5.4.2: black windows, and the commit that cause the problem seems to be
commit f15a7f3c6e1bb802ae8c2a29a2dc35ff530aea4d Author: Eduardo Lima Mitev <email address hidden> Date: Thu Sep 24 10:57:43 2015 +0200
mesa: Use the effective internal format instead for validation [...]
Spotted this report after bisecting :(
So, I can confirm the same behaviour under kde5/gentoo/ qt-5.4. 2: black windows, and the commit that cause the problem seems to be
commit f15a7f3c6e1bb80 2ae8c2a29a2dc35 ff530aea4d
Author: Eduardo Lima Mitev <email address hidden>
Date: Thu Sep 24 10:57:43 2015 +0200
mesa: Use the effective internal format instead for validation
[...]