Hello just a last thing, please reproduce the bug, reboot and attach here /var/log/kern.log /var/log/kern.log.1 Thanks Fabio
** Description changed: I configure the power manager in order to save energy so the screen shuts down after a while. When I try to wake it up, it turns on but all the system is frozen (except for the coursor that has movment but can't click anything). This only happens with Natty (no problem whith Lucid). + ###From gpm.log: + TI:19:16:46 TH:0x8160168 FI:gpm-backlight-kbd.c FN:gpm_backlight_kbd_brightness_evaluate_and_set,269 + - ERROR: Method "GetBrightness" with signature "" on interface "org.freedesktop.UPower.KbdBacklight" doesn't exist + + *** WARNING *** + TI:19:16:46 TH:0x8160168 FI:gpm-backlight-kbd.c FN:gpm_backlight_kbd_brightness_evaluate_and_set,273 + - GetBrightness failed! + + ---//--- ~$ lsb_release -rd Description: Ubuntu 11.04 Release: 11.04 ~$ uname -a Linux xxx 2.6.38-8-generic #42-Ubuntu SMP Mon Apr 11 03:31:50 UTC 2011 i686 i686 i386 GNU/Linux I do not know if it is usefull, but here is part of my "lspci" 00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07) 00:02.1 Display controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/781964 Title: OS crashes when the power manager shuts down the screen -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs