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Acpi ifx0102 1 driver panasonic3/11/2023 ![]() 1 root root 4096 Oct 20 20:35 actual_brightness ![]() Pressing the hardware brightness down and up keys yields:Īlso the on screen applet appears and the values in /sys/class/backlight/panasonic/brightness and /sys/class/backlight/panasonic/actual_brightness change.Įchoing stuff into /sys/class/backlight/panasonic/* changes the valuesīut does not result in changes of the screen brightness.īy the way there is only one entry in /sys/class/backlight/ (while on Ubuntu, see later, there are 3) Is not enabled (this mode can be used to conceal any light emission from the I also assured the CF-19's "concealed mode" It works fine under Windows 7 and as I just found out also Ubuntu 13.04.Īssured this is not a BIOS setting. The problem: I can not change the display brightness under CentOS 6.4 First off I'm a novice Linux user, so please bear with me.
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