Linux下调节亮度的问题

新安装Linux后有些笔记本电脑无法调节亮度,本人整理了下比较实用的修改文件使系统亮度可调的方法。

Ubuntu、Mint、Kali亲测有效

Deepin测试失败,不知道为什么。下面有针对这个情况做的一个补救。

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1.修改 grub

sudo vi /etc/default/grub 

把 GRUB_CMDLINE_LINUX="" 改成 GRUB_CMDLINE_LINUX="acpi_backlight=vendor"

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下面是修改后的grub文件:

# If you change this file, run 'update-grub' afterwards to update 
# /boot/grub/grub.cfg. 
# For full documentation of the options in this file, see: 
# info -f grub -n 'Simple configuration' 

GRUB_DEFAULT=0 
#GRUB_HIDDEN_TIMEOUT=0 
GRUB_HIDDEN_TIMEOUT_QUIET=true 
GRUB_TIMEOUT=10 
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian` 
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" 
GRUB_CMDLINE_LINUX="acpi_backlight=vendor" 

# Uncomment to enable BadRAM filtering, modify to suit your needs 
# This works with Linux (no patch required) and with any kernel that obtains 
# the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...) 
#GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef" 

# Uncomment to disable graphical terminal (grub-pc only) 
#GRUB_TERMINAL=console 

# The resolution used on graphical terminal 
# note that you can use only modes which your graphic card supports via VBE 
# you can see them in real GRUB with the command `vbeinfo' 
#GRUB_GFXMODE=640x480 

# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux 
#GRUB_DISABLE_LINUX_UUID=true 

# Uncomment to disable generation of recovery mode menu entries 
#GRUB_DISABLE_RECOVERY="true" 

# Uncomment to get a beep at grub start 
#GRUB_INIT_TUNE="480 440 1"

 

 

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2. 更新: grub.cfg

sudo update-grub 

查看grub.cfg,可以发现每个启动项都加入了"acpi_backlight=vendor"
PS:grub.cfg 位于 /boot/grub/grub.cfg

 

3.针对Deepin亮度调节的补救

在应用商店里搜索、安装Redshift,这个是显示器色温自动调整的应用,由于没有找到可行的快捷键调整亮度的办法,使用这个软件可以稍微保护一下眼睛,不至于晚上的时候太刺眼。

至于使用echo修改文件数值达到修改屏幕亮度的方法,本人认为太麻烦,就没采用。有想使用此方法的可以自行百度。

posted @ 2017-05-15 17:29  vfoLee  阅读(4485)  评论(0编辑  收藏  举报