Although step 3 at https://wiki.ubuntu.com/Kernel/Debugging/Backlight asks for the output of ls /sys/class/backlight, it gives no output, so I do not include an attachment. Steps 9, 10, and 12–16 either cause no changes or do not apply. Step 11, as noted, is a workaround.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1775065 Title: No brightness controls and /sys/class/backlight empty after upgrade to Bionic on laptop with GeForce GTX 1060 Mobile (kernel parameter acpi_osi= is a workaround) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-signed/+bug/1775065/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
