无法调整屏幕亮度度可以用这个方法实现了

[muction]

内容原文来自百度博客
2013-08-25 14:56
ubuntu 13.04 开机亮度

Aspire S3 无光驱，只好以硬盘方式安装ubuntu13.04。安装好了以后，一直有个问题，就是重启后，必须登录进系统了，才能通过fn调节亮度，不然一重启屏幕亮度几乎为0，什么都看不到。上网查了相关资料，结果大部分是一重启就是最大亮度，这比我这个亮度为0，几乎看不到的好吧。继续查资料，总算查到了。

sudo gedit /etc/default/grub
找到 GRUB_CMDLINE_LINUX_DEFAULT
修改为
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_osi=Linux acpi_backlight=vendor"
最后
sudo update-grub

sudo gedit /etc/default/grub
找到 GRUB_CMDLINE_LINUX_DEFAULT
修改为
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_osi=Linux acpi_backlight=vendor"
最后
sudo update-grub

可惜还是不能保存设置的亮度，但总算解决了重启什么都看不到的问题。

[usman1133]

Aspire S3 无光驱，只好以硬盘方式安装ubuntu13.04。安装好了以后 [urlhttp://www.passguide.com]70-410[/url]
，一直有个问题，就是重启后，必须登录进系统了，才能通过fn调节亮度，不然一重启屏幕亮度几乎为0，什么都看不到。上网查了相关资料，结果大部分是一重启就是最大亮度，这比我这个亮度为0，几乎看不到的好吧。继续查资料，总算查到了。

[usman1133]

boot Ubuntu 13.04 brightness Aspire S3 no optical drive, hard disk had [urlhttp://www.passguide.com]70-410[/url]
to be installed ubuntu13.04. After installed, has been a problem, that is, after the restart, you must log into the system in order to adjust the brightness by fn, or a reboot screen brightness is almost zero, can not see anything. Internet search-related information, the result is mostly a restart maximum brightness, the brightness of this than I 0, almost invisible Okay. Continue to check the information, and finally found the. sudo gedit / etc / default / grub find GRUB_CMDLINE_LINUX_DEFAULT modified to GRUB_CMDLINE_LINUX_DEFAULT = "quiet splash acpi_osi = Linux acpi_backlight = vendor" Last Update-grub sudo sudo gedit / etc / default / grub find GRUB_CMDLINE_LINUX_DEFAULT modified to GRUB_CMDLINE_LINUX_DEFAULT = "quiet splash acpi_osi = Linux acpi_backlight = vendor " last sudo update-grub brightness unfortunately still can not save the settings, but finally solved the reboot problem can not see anything.