On 8/17/26 14:55, Jani Nikula wrote: > On Thu, 06 Aug 2026, "[email protected]" <[email protected]> wrote: >> I would like to report a possible kernel regression affecting the >> internal display brightness on my Dell Latitude 7390. > > Please file a bug as described at [1]. > > [1] https://drm.pages.freedesktop.org/intel-docs/how-to-file-i915-bugs.html Before doing so you might want to try 7.2 vanilla, as there was a backlight bug affecting that machine that was fixed long ago: https://gitlab.freedesktop.org/drm/i915/kernel/-/work_items/16015
Maybe Ubuntu just never picked up the fix. So if 7.2 works, you need to report it to them. Ciao, Thorsten
