I got the same machine and restored the system to factory image. After doing some check and write some intel reg value for testing, then I can't reproduce this issue any more, even do a cold boot or restore the image again.
BTW, the patched kernel on #4 seems doesn't help. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1646537 Title: Backlight sometimes fails to resume from suspend & screen brightness sometimes will not dim below 100% To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1646537/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : [email protected] Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
