Speccyfighter,
[glav1@comp-pentium-cpu-696633 ~]$ xrandr -q | qrep 'connect'
bash: qrep: команда не найдена
[glav1@comp-pentium-cpu-696633 ~]$ sudo apt-get install xbacklight
[sudo] password for glav1:
Чтение списков пакетов... Завершено
Построение дерева зависимостей... Завершено
E: Невозможно найти пакет xbacklight
[glav1@comp-pentium-cpu-696633 ~]$ xrandr --prop
Screen 0: minimum 320 x 200, current 1280 x 1024, maximum 32767 x 32767
VGA1 connected 1280x1024+0+0 (normal left inverted right x axis y axis) 376mm x 301mm
EDID:
00ffffffffffff00410c49086f450300
021101031f261e782ea2a5a3574c9d25
115054bfef808180714f010101010101
010101010101302a009851002a403070
1300782d1100001e000000ff00425a35
30373032323134333833000000fc0050
68696c69707320313930430a000000fd
00384c1e530e000a20202020202000ea
1280x1024 60.0*+ 75.0
1152x864 75.0
1024x768 75.1 70.1 60.0
832x624 74.6
800x600 72.2 75.0 60.3 56.2
640x480 75.0 72.8 66.7 60.0
720x400 70.1
HDMI1 disconnected (normal left inverted right x axis y axis)
Broadcast RGB: Automatic
supported: AutomaticFullLimited 16:235
audio: auto
supported: force-dvioffautoon
DP1 disconnected (normal left inverted right x axis y axis)
Broadcast RGB: Automatic
supported: AutomaticFullLimited 16:235
audio: auto
supported: force-dvioffautoon