Dell Latitude 7490
==================

Graphics
--------

The kernel crashes frequently with graphical glitches. Add the following
to the kernel command line to prevent this:

    i915.enable_psr=0


Crashes when locking or sleeping
--------------------------------

Still working out the cause for this one. Current troubleshooting steps
have been:

  - Using X11 instead of Wayland: FAILED
  - Using KDE Plasma instead of Gnome: FAILED
  - Using XDM instead of GDM: FAILED
  - Masking rtkit-daemon.service: FAILED
  - Using newer kernel from Debian Backports: FAILED
  - Using Fedora instead of Debian: FAILED
  - Adding i915.modeset=0 to the boot line: FAILED
  - Adding intel_idle.max_cstate=1 to the boot line: FAILED
  - Adding acpi_osi='Windows 2018' to the boot line: TESTING
  - Adding i915.enable_dc=0 to the boot line: TESTING

Currently the "acpi_osi='Windows 2018'" kernel option seems to be
working.

https://wiki.archlinux.org/title/intel_graphics#Crash/freeze_on_low_power_Intel_CPUs