root@chamber:/home/piktor# lspci...00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09)...01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Thames [Radeon HD 7500M/7600M Series] (rev ff)...root@chamber:/home/piktor#
piktor@chamber:~$ xrandr --listprovidersProviders: number : 2Provider 0: id: 0x7c cap: 0xb, Source Output, Sink Output, Sink Offload crtcs: 3 outputs: 4 associated providers: 0 name:IntelProvider 1: id: 0x55 cap: 0xf, Source Output, Sink Output, Source Offload, Sink Offload crtcs: 6 outputs: 0 associated providers: 0 name:radeonpiktor@chamber:~$
За наслідки знімаю з себе відповідальність. Спробуйте додати драйвер Intel (i915) до «чорного» списку у /etc/modprobe.d/blacklist.conf