Same problem on Dell Latitude E6410 with running Maverick 2.6.35-22-generic; nVidia proprietary drivers 256.53. Tested with 2.6.36 RC kernels and PPA nVidia drivers (260.x series from x-swat) and Xorg Edgers PPA too with same results.
Results of different scenarios: 1) $ xset dpms force off -> display goes off ...touching mouse and keyboard -> display backlight comes up, but nothing is shown unless virtual terminal toggled or "xset dpms force on" command invoked 2) $ xset dpms force standby -> mostly produces the same behaviour as scenario 1 -> sometimes touching mouse and keyboard does not even turn on backlight and the command "xset dpms force on" needs to be called twice. Firstly the result of the call is backlight restore, after second call graphics starts to appear on display 3) # vbetool dpms off -> display backlight turned off but graphics (barely) visible ...touching mouse and keyboard -> nothing happens with display state ...need to invoke "# vbetool dpms on" or "$ xset dpms force on" to restore display to a backlit state Note: with Xorg.conf empty, default open-source display driver is used (nv? nouveau?), which results in low-res X without acceleration however dpms on and off works correctly. -- Screen locks up black on laptop lid close. https://bugs.launchpad.net/bugs/49521 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
