Brightness in Centos 6.4???
Went to a new library today and to my suprise they had the freaken lights turned on high beam everywhere!
Dazed and confused I looked everywhere for a in various menus: "Appearance", "Assistive Technologies", "Deskop Effects (unavaliable)", brightness menu and could not locate on in Centos 6.4 Gnome.
I ended up turning down the brightness on my Laptop with the function keys only in the BIOS Menu, as the function keys did not work in Centos.
Downloaded and played around with gconf-editor and there are many brightness options so I managed to get nothing working.
Has anyone with a laptop managed to turn down the brightness in Centos 6.4 using the software and not the function keys?
Is there a utility I can get which does this??
I am using an ASUS A55A...there are some examples on the Net using proc but for different models....
found an example here:
reduce screen brightness to 50 or less, for example:
xbacklight -set 50
No outputs have backlight property
Please tell me I am missing something obvious....
00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09) (prog-if 00 [VGA controller])
Subsystem: ASUSTeK Computer Inc. Device 2102
Flags: fast devsel, IRQ 16
Memory at f7800000 (64-bit, non-prefetchable) [size=4M]
Memory at e0000000 (64-bit, prefetchable) [size=256M]
I/O ports at f000 [size=64]
Expansion ROM at <unassigned> [disabled]
Capabilities:  MSI: Enable- Count=1/1 Maskable- 64bit-
Capabilities: [d0] Power Management version 2
Capabilities: [a4] PCI Advanced Features
Kernel modules: i915
ll -l /sys/class/backlight/
xrandr: Failed to get size of gamma for output default
Screen 0: minimum 1366 x 768, current 1368 x 768, maximum 1368 x 768
default connected 1368x768+0+0 0mm x 0mm
xrandr --brightness 50 : had issues setting this hmmmmm