Я тоже сначала думал на xorg.conf, но там ничего не изменилось. И я для страховки обратно залил бекап xorg.conf, так как раньше всё норм шло.
Section "InputDevice"
Identifier "Generic Keyboard"
Driver "kbd"
Option "XkbRules" "xorg"
Option "XkbModel" "pc105"
Option "XkbLayout" "us,ru"
Option "XkbVariant" ",winkeys"
Option "XkbOptions" "grp:ctrl_shift_toggle,grp_led:scroll"
EndSection
Section "InputDevice"
Identifier "Configured Mouse"
Driver "mouse"
Option "CorePointer"
EndSection
Section "Device"
Identifier "Configured Video Device"
Driver "fglrx"
EndSection
Section "Monitor"
Identifier "Configured Monitor"
EndSection
Section "Screen"
Identifier "Default Screen"
Monitor "Configured Monitor"
Device "Configured Video Device"
Defaultdepth 24
EndSection
Section "ServerLayout"
Identifier "Default Layout"
screen "Default Screen"
EndSection
Section "Module"
Load "glx"
EndSection