How can I detect when a monitor is plugged in or unplugged?
Is there any event that is triggered when I plug in or out an external monitor into the DisplayPort of my laptop? ACPID and UDEV don’t react at all.
acpi
How to disable auto suspend when I close laptop lid?
I’m using archlinux. It never auto-suspend before a recent system upgrade(maybe I updated the kernel?).
ACPI wakeup 4-letters code meaning?
I have to disable some event to avoid an immediate wakeup after suspend in my desktop machine, and I made it by trial and error (works well, so that is not a problem). But I wonder… for example in my laptop I have a long list in /proc/acpi/wakeup:
How do I remove acpi Warning on boot?
I have this message in dmesg log with linux 3.11.6-1 (2013-10-27) (debian version).
ACPI BIOS Error / AE_NOT_FOUND
I’m getting these error messages every single time I reboot my desktop (and a couple of more I don’t know how to retain when it’s shutting down, but those are not relevant to this question so far):
What do the kernel parameters acpi_osi=linux and acpi_backlight=vendor do?
I had troubles with the screen brightness control in my laptop and I fixed it by adding the acpi_osi=linux and acpi_backlight=vendorparameters to the filegrub.cfg.
I’d like to know what these parameters mean and why they work.