Kernel

The well-known kernel options i915.enable_dc=0 and intel_idle.max_cstate=1 are still helpful with my latest installation of NixOS 24.5 on this device.

Don’t miss to add kernel options i915.enable_dc=0 and intel_idle.max_cstate=1, if you want to run a modern arch linux on your Dell Latitude 7490.

At least on Linux Mint Petra the mount of an SD card will not survive suspend mode.

In the standard rsyslog setup of Ubuntu a kernel message goes to 3 log files (syslog, messages and kern.log), i.e. running LOG targets in your firewall setup can really hog your /var/log volume.

I decided to simply discard the kernel messages after logging them to kern.log.