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。
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1.修改 grub
sudo vi /etc/default/grub
把 GRUB_CMDLINE_LINUX="" 改成 GRUB_CMDLINE_LINUX="acpi_backlight=vendor"
-----------------------------------------------------------------------------
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"
-----------------------------------------------------------------------------------
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。
时间: 2024-10-12 21:48:58