So at first even the brightness key (via Fn button) used to work in Ubuntu 18.04. After an update, i can't even change it from the setting. And with the keys, it just show the icon of the screen brightness which is changing, and doesn't actually do anything.
To be mentioned, with
brightness-controller-simple which is suggested in this answer, the "actual" brightness doesn't change, it just makes the colors more dark, with same amount of light coming out of the screen.
xbacklight also doesn't work; I mean, this command doesn't do a thing
xbacklight -inc 10, which is suggested here.
I finally could change the actual brightness, but from the terminal command which i read here. Which is this command:
sudo bash -c "echo 130 > /sys/class/backlight/intel_backlight/brightness;"
Is there any other way i could probably change the brightness?
I have ASUS model V502U. And results from
lspci -v | less, video adapter part:
00:02.0 VGA compatible controller: Intel Corporation HD Graphics 520 (rev 07) (prog-if 00 [VGA controller]) Subsystem: ASUSTeK Computer Inc. Skylake GT2 [HD Graphics 520] Flags: bus master, fast devsel, latency 0, IRQ 129 Memory at dd000000 (64-bit, non-prefetchable) [size=16M] Memory at b0000000 (64-bit, prefetchable) [size=256M] I/O ports at f000 [size=64] [virtual] Expansion ROM at 000c0000 [disabled] [size=128K] Capabilities: <access denied> Kernel driver in use: i915 Kernel modules: i915