Please try the kernel @ https://people.canonical.com/~alexhung/LP1894667/
1. remove kernel parameter "acpi_backlight=video" 2. download all deb 3. install kernel by "sudo dpkg -i *.deb" 4. reboot This should be the same as "acpi_backlight=video" 1. run "ls /sys/class/backlight" 2. verify whether brightness bar works. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1894667 Title: [HP 635] Radeon 6310 brightness control does not work To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1894667/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
