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Hi all,
recently I've change my laptop, with the new ROG, but I can't control my brightness. I've installed all intel-driver and mesa but still no entry in /sys/class/backlight/.
My X11 conf:
Section "Monitor"
Identifier "Monitor0"
EndSection
Section "Device"
Identifier "Device0"
Driver "vesa" #Choose the driver used for this monitor
Option "Backlight" "intel_backlight"
EndSection
Section "Screen"
Identifier "Screen0" #Collapse Monitor and Device section to Screen section
Device "Device0"
Monitor "Monitor0"
DefaultDepth 24 #Choose the depth (16||24)
SubSection "Display"
Depth 24
Modes "1920x1080" #Choose the resolution
EndSubSection
EndSection
I search alot in the wiki and forum but, I only found that I missed to add "acpi_osi=Linux acpi_backlight=vendor" or something similar. From my previous experience with Arch I remember that I fixed the same problem on my dell using option like that in my grub. The problem now is I used "bootctl install" and don't know where are the kernel option, because the Asus use only UEFI and I have a WIndows 10 also on it.
Can someone tell me a solution for my the problem, even if my Fn+backlight keys not going to worked.I want only to minimize the brightness cause can't continue to use it at full max brightness
p.P: Input from xbacklight -set 50 :
No outputs have backlight property
P.p: I try also to switch X11 driver to intel but can't startx, if it matter my Intel video is Skylake Intel HD530
Last edited by killvanrea (2016-02-16 12:35:30)
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I search alot in the wiki and forum but, I only found that I missed to add "acpi_osi=Linux acpi_backlight=vendor" or something similar.
For kernel >4 try one of the four parameters listed in the ArchWiki.
https://wiki.archlinux.org/index.php/Ba … ne_options
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Okay I manage to write acpi_backlight in my kernel option. With acpi_backlight=vendor, directory /sys/class/backlight/asus-nb-wmi has folder and files. I've try to edit them using vim(sudo vim /sys/class/backlight/asus-nb-wmi/brightness), but i've got Fsync error, and FnKey+F5/F6 still not working Any suggestions?
p.P: I've changed backlight option from "intel_backlight" to "asus-nb-wmi", and after reboot my display is dimmer, and no more max backlight. But still cant change the value or to adjust it using FnKey+F5/F6....
Last edited by killvanrea (2015-10-28 22:40:33)
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Maybe this can help you:
http://askubuntu.com/questions/694453/n … parameters
Xwang
I'm still learning English so please excuse me if my English is not good enough and feel free to correct me via PM if you want.
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The problem is resolved with adding
acpi_backlight=vendor
in kernel parameters. But only can change the brightens with "xbacklight" command. The Fn+F5/F6 not working for now
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The problem is resolved with adding
acpi_backlight=vendor
in kernel parameters. But only can change the brightens with "xbacklight" command. The Fn+F5/F6 not working for now
if you use
acpi_backlight=native
The fn keys work, at least I tested with the latest arch with KDE Plasma
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