![CF-52 Mk 1 亮度停止在 50%](https://linux22.com/image/1054793/CF-52%20Mk%201%20%E4%BA%AE%E5%BA%A6%E5%81%9C%E6%AD%A2%E5%9C%A8%2050%25.png)
我使用这个acpi_osi=
技巧让 Xubuntu 14.04 在我新买的 CF-52 Mk 1 Toughbook 上工作。除其他功能外,它还能够控制 LCD 背光亮度。这在大多数情况下都运行良好,但当亮度达到 50% 时,背光亮度就会停止增加。
这些笔记本电脑因 CCFL 背光故障而臭名昭著。但是,我没有遇到启动时闪烁、随时间变暗或亮度不一致的情况。是否有可能我在不知不觉中将亮度限制在了 50% 左右?
谢谢。
答案1
从 Ubuntu 软件商店下载 xblacklight。
Xbacklight 用于调整支持的背光亮度。它会查找 X 服务器上所有支持背光亮度控制的输出,并以相同的方式更改它们。
-get Print out the current backlight brightness of each output with
such a control. The brightness is represented as a percentage of
the maximum brightness supported.
-set percent
Sets each backlight brightness to the specified level.
-inc percent
Increases brightness by the specified amount.
-dec percent
Decreases brightness by the specified amount.
-help Print out a summary of the usage and exit.
-time milliseconds
Length of time to spend fading the backlight between old and new
value. Default is 200.
-steps number
Number of steps to take while fading. Default is 20.