New answers tagged laptop
Enter BIOS, look for "Touchpad", change "Advanced" to "Basic", save and reboot.
You can use this to temporarily disable lid-switch events: systemd-inhibit --what=handle-lid-switch sleep 1d
The backlight issue seems to have many potential sources. Mine was just about enabling backlight control with nVidia proprietary driver in Xorg configuration. This answer on Ubuntu stack exchange did the trick: Section "Device" Identifier "Device0" Driver "nvidia" VendorName "NVIDIA Corporation" ... # Added the following ...
If i have this problem, I press ctrl alt F1, wich gives me the commandline screen. And then without typing anything else, I press ctrl+alt+F7, and after a couple of seconds the screen seems to reset, and I can login again. (PS: On my keyboard I have to press ctrl, then alt, then first the orange Fn key and thén the F7 key!)
The /sys filesystem contains information set by the kernel, mostly for the benefit of udev, along with some knobs for userspace to set some options. It is not a storage-backed filesystem, and as such you cannot make arbitrary changes, like changing file permissions. If you want to control some knobs from a non-root process, I can see two options: Write a ...
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