Same issue on Dell Latitude 7390 with integrated Intel 620 GPU, Ubuntu 24.04.4 LTS.
Using kernel 7.0.0-28-generic: $ cat /sys/class/backlight/intel_backlight/max_brightness 1023 After switching to 6.17.0-40-generic kernel the max_brightness is much higher and observed display brightness is normal again: $ cat /sys/class/backlight/intel_backlight/max_brightness 7500 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2161153 Title: Internal display backlight extremely dim with 7.0.0-28-generic on Dell G5, works with 6.17.0-35 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-hwe-7.0/+bug/2161153/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
