@Bobik-s- Thanks for the detailed explanation.
Next lets try disabling that dell_backlight interface... Please boot with the kernel boot parameter "dell_laptop.backlight=0", verify that only intel_backlight appears when you check "ls /sys/class/backlight", and then test the idle-timeout, lid-close, and brightness keys behavior again. Does disabling dell_backlight help? -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/876711 Title: Screen brightness resets to minmized when screen turns off To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/876711/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
