Little-bit more details. The keys work, GUI changes and the value in
/sys/class/backlight/toshiba/brightness changes from 0 to 7 when
changing brightness, however there is no real effect on screen
brightness. There is also
/sys/class/backlight/intel_backlight/brightness file, which is not
affected when changing backlight.
Data about my laptop:
sudo s2ram -n
Machine unknown
This machine can be identified by:
sys_vendor = "TOSHIBA"
sys_product = "Satellite R630"
sys_version = "PT31LE-01600LG3"
bios_version = "Version 1.50 "
There seems to be a similar bug:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/935778
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https://bugs.launchpad.net/bugs/1159771
Title:
Toshiba Portege R830-13C no backlight after resume from suspend
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