Ubuntu10.04 adjust screen brightness

Ubuntu10.04 to adjust the screen brightness, you must first install the video card driver. the following methods are applicable. You can refer to the installation method of the video card driver in 3D effect. That 1. adjust the gamma value of the screen contrast parameter & gt; If the xgamma-gamma.75 is not ideal, try to change. 75 to 0.5 ~ 1.0 between test 1 .. Ubuntu 10.04 to adjust the screen brightness first install the graphics card driver, the following method is applicable. You can refer to the installation method of the video card driver in 3D effect. That 1. adjust the gamma value of the screen contrast parameter> xgamma-gamma. 75 if not ideal, try to change. 75 to 0.5 ~ Test between 1.0. After I use 1.0, I feel that the brightness is the same as that under Vista. This command does not require administrator privileges. 2. adjust the brightness of the local screen backlight pci> sudo setpci-s. 0 F4. B = xxxx is the screen brightness value in hexadecimal notation, range 0 (brightest )~ FF ). . 0 is your monitor VGA device code. Run the lspci command to check your VGA device code:> lspci00: 00.0 Host bridge: Intel Corporation Mobile PM965/GM965/GL960 Memory Controller Hub (rev 03. 0 VGA compatible controller: Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (rev 03. 1 Display controller: Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (rev 03) 00: 1a. 0 USB Controller: Intel Corporation 82801 H (ICH8 Family) usb uhci Controller #4 (rev 03) Note line 2. 0 VGA compatible controller