This bug is fixed in kamal9. I won't change the bug status just yet as the i386 build isn't complete. Thanks Kamal! We appreciate your stressful day :) .
** Description changed: I have the high-end Dell XPS 13, running the latest kamal8 kernel. To reproduce: 1) Boot/reboot XPS. - 2) Adjust screen brightness via Fn+F4/Fn+F4. Note that that the brightness adjustment notifications work fine, /sys/class/backlight/intel_backlight/brightness is updated correctly, and the brightness changes as expected. + 2) Adjust screen brightness via Fn+F4/Fn+F4. Note that that the brightness adjustment notifications work fine, /sys/class/backlight/acpi_video0/brightness is updated correctly, and the brightness changes as expected. 3) Suspend machine (e.g. close the lid). 4) Wake machine up. - 5) Try adjusting screen brightness again as in (2). Note that the brightness adjustment notifications again work fine, /sys/class/backlight/intel_backlight/brightness again updates correctly, but the brightness does NOT change at all. + 5) Try adjusting screen brightness again as in (2). Note that the brightness adjustment notifications again work fine, /sys/class/backlight/acpi_video0/brightness again updates correctly, but the brightness does NOT change at all. Note that this bug was not present in the kamal6 kernel; I would say this is a regression. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1055231 Title: LCD backlight adjustments do nothing after suspend. To manage notifications about this bug go to: https://bugs.launchpad.net/dell-sputnik/+bug/1055231/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
