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sudo gedit /etc/default/grub在打开文件中找到
GRUB_CMDLINE_LINUX=""
改成
GRUB_CMDLINE_LINUX="acpi_backlight=vendor“
改好后保存即可
然后升级grub:
sudo update-grub重启之。。。按FN就能调节了
如果还不能调节,就继续操作:
sudo gedit /usr/share/X11/xorg.conf.d/20-intel.conf在打开的空白文件中添加:
Section "Device" Identifier "card0" Driver "intel" Option "Backlight" "intel_backlight" BusID "PCI:0:2:0" EndSection保存重启电脑,应该就OK了
参考文档:
http://blog.163.com/tym190@126/blog/static/8776005920143192412477/
http://tieba.baidu.com/p/3233385088
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原文地址:http://my.oschina.net/lhplj/blog/397056