Thank you Mr. Harrington, it's completely resolved the problem for me. xset dpms force off and setting suspend in kubuntu (System Settings->display->Power Control) works as expected.
-- dpms does not switch off backlight on laptop screen https://bugs.launchpad.net/bugs/363059 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
