Comment # 47 on bug 1126480 from Josua Mayer

New day, new observations:

Laptop was off for hours, all night - but connected to charger
1. 4.12.14-lp151.26.4
glxinfo hangs, hard power off (because system freezes after selecting shutdown
or reboot in plasma5)
2. 4.12.14-lp151.26.4
glxinfo hangs, hard power off
3. 4.12.14-lp151.25.4
everything works as expected!!!
reboot
4. 4.12.14-lp151.26.4
everything works as expected!!!
shutdown
5. 4.12.14-lp151.26.4
everything works as expected!!!

These are not the results I had hoped for - it is probably indeed better to
take care of this just for upstream - which so far has not worked once.