Thanks for the tip; here are some errors that appear after the screen goes off (the timeout is 10 minutes)
Oct 25 22:34:10 alessio-laptop udev-configure-printer: Failed to get parent Oct 25 22:34:26 alessio-laptop dbus[878]: [system] Reloaded configuration Oct 25 22:35:37 dbus[878]: last message repeated 6 times Oct 25 22:45:14 alessio-laptop kernel: [ 1893.203921] ACPI Error: Result stack is empty! State=d9859c00 (20110413/dswstate-98) Oct 25 22:45:14 alessio-laptop kernel: [ 1893.203934] ACPI Exception: AE_AML_NO_RETURN_VALUE, Missing or null operand (20110413/dsutils-646) Oct 25 22:45:14 alessio-laptop kernel: [ 1893.203942] ACPI Exception: AE_AML_NO_RETURN_VALUE, While creating Arg 1 (20110413/dsutils-763) Oct 25 22:45:14 alessio-laptop kernel: [ 1893.203951] ACPI Error: Method parse/execution failed [\_SB_.PCI0.VGA_.UPBL] (Node f4428e40), AE_AML_NO_RETURN_VALUE (20110413/psparse-536) Oct 25 22:45:14 alessio-laptop kernel: [ 1893.203967] ACPI Error: Method parse/execution failed [\_SB_.PCI0.SBRG.EC0_._Q0F] (Node f442d270), AE_AML_NO_RETURN_VALUE (20110413/psparse-536) Oct 25 22:45:15 alessio-laptop kernel: [ 1893.970634] ACPI Error: Result stack is empty! State=d9858800 (20110413/dswstate-98) Oct 25 22:45:15 alessio-laptop kernel: [ 1893.970647] ACPI Exception: AE_AML_NO_RETURN_VALUE, Missing or null operand (20110413/dsutils-646) Oct 25 22:45:15 alessio-laptop kernel: [ 1893.970655] ACPI Exception: AE_AML_NO_RETURN_VALUE, While creating Arg 1 (20110413/dsutils-763) Oct 25 22:45:15 alessio-laptop kernel: [ 1893.970665] ACPI Error: Method parse/execution failed [\_SB_.PCI0.VGA_.UPBL] (Node f4428e40), AE_AML_NO_RETURN_VALUE (20110413/psparse-536) Oct 25 22:45:15 alessio-laptop kernel: [ 1893.970680] ACPI Error: Method parse/execution failed [\_SB_.PCI0.SBRG.EC0_._Q0F] (Node f442d270), AE_AML_NO_RETURN_VALUE (20110413/psparse-536) Oct 25 22:45:15 alessio-laptop kernel: [ 1894.231842] ACPI Error: Result stack is empty! State=d9858800 (20110413/dswstate-98) Oct 25 22:45:15 alessio-laptop kernel: [ 1894.231854] ACPI Exception: AE_AML_NO_RETURN_VALUE, Missing or null operand (20110413/dsutils-646) Oct 25 22:45:15 alessio-laptop kernel: [ 1894.231862] ACPI Exception: AE_AML_NO_RETURN_VALUE, While creating Arg 1 (20110413/dsutils-763) Oct 25 22:45:15 alessio-laptop kernel: [ 1894.231871] ACPI Error: Method parse/execution failed [\_SB_.PCI0.VGA_.UPBL] (Node f4428e40), AE_AML_NO_RETURN_VALUE (20110413/psparse-536) Oct 25 22:45:15 alessio-laptop kernel: [ 1894.231887] ACPI Error: Method parse/execution failed [\_SB_.PCI0.SBRG.EC0_._Q0F] (Node f442d270), AE_AML_NO_RETURN_VALUE (20110413/psparse-536) Oct 25 22:45:15 alessio-laptop kernel: [ 1894.269182] ACPI Error: Result stack is empty! State=ed03dc00 (20110413/dswstate-98) Oct 25 22:45:15 alessio-laptop kernel: [ 1894.269192] ACPI Exception: AE_AML_NO_RETURN_VALUE, Missing or null operand (20110413/dsutils-646) Oct 25 22:45:15 alessio-laptop kernel: [ 1894.269196] ACPI Exception: AE_AML_NO_RETURN_VALUE, While creating Arg 1 (20110413/dsutils-763) Oct 25 22:45:15 alessio-laptop kernel: [ 1894.269201] ACPI Error: Method parse/execution failed [\_SB_.PCI0.VGA_.UPBL] (Node f4428e40), AE_AML_NO_RETURN_VALUE (20110413/psparse-536) Oct 25 22:45:15 alessio-laptop kernel: [ 1894.269210] ACPI Error: Method parse/execution failed [\_SB_.PCI0.SBRG.EC0_._Q0F] (Node f442d270), AE_AML_NO_RETURN_VALUE (20110413/psparse-536) -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-power-manager in Ubuntu. https://bugs.launchpad.net/bugs/844241 Title: Backlight not restored when moving the mouse Status in Light Display Manager: New Status in “gnome-power-manager” package in Ubuntu: Confirmed Bug description: I've upgraded my laptop from natty to oneiric and I've noticed that when I leave the pc idle (or I manually lock the screen) the backlight is not restored when I move the mouse or press a key, but I must turn it on and increase it using the keyboard button. It is the same behaviour than in this old bug #199522. After additional testing I've noticed that the problem is independent from "dim on idle" To manage notifications about this bug go to: https://bugs.launchpad.net/lightdm/+bug/844241/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
