Also when 'asus_laptop' driver is used with 3.0-2-generic 'oneiric' kernel I got ACPI exceptions when changing backlight level:
Jun 28 11:54:39 localhost kernel: [ 612.337945] ACPI Error: Result stack is empty! State=ffff880103c9ec00 (20110413/dswstate-98) Jun 28 11:54:39 localhost kernel: [ 612.337963] ACPI Exception: AE_AML_NO_RETURN_VALUE, Missing or null operand (20110413/dsutils-646) Jun 28 11:54:39 localhost kernel: [ 612.337975] ACPI Exception: AE_AML_NO_RETURN_VALUE, While creating Arg 1 (20110413/dsutils-763) Jun 28 11:54:39 localhost kernel: [ 612.337987] ACPI Error: Method parse/execution failed [\_SB_.PCI0.VGA_.DWBL] (Node ffff880138e38578), AE_AML_NO_RETURN_VALUE (20110413/psparse-536) Jun 28 11:54:39 localhost kernel: [ 612.338009] ACPI Error: Method parse/execution failed [\_SB_.PCI0.SBRG.EC0_._Q0E] (Node ffff880138e3fca8), AE_AML_NO_RETURN_VALUE (20110413/psparse-536) Jun 28 11:54:42 localhost kernel: [ 615.157385] ACPI Error: Result stack is empty! State=ffff880103c9f400 (20110413/dswstate-98) Jun 28 11:54:42 localhost kernel: [ 615.157403] ACPI Exception: AE_AML_NO_RETURN_VALUE, Missing or null operand (20110413/dsutils-646) Jun 28 11:54:42 localhost kernel: [ 615.157415] ACPI Exception: AE_AML_NO_RETURN_VALUE, While creating Arg 1 (20110413/dsutils-763) Jun 28 11:54:42 localhost kernel: [ 615.157428] ACPI Error: Method parse/execution failed [\_SB_.PCI0.VGA_.UPBL] (Node ffff880138e38550), AE_AML_NO_RETURN_VALUE (20110413/psparse-536) Jun 28 11:54:42 localhost kernel: [ 615.157450] ACPI Error: Method parse/execution failed [\_SB_.PCI0.SBRG.EC0_._Q0F] (Node ffff880138e3fcd0), AE_AML_NO_RETURN_VALUE (20110413/psparse-536) No such messages when intel_backlight is used. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/568611 Title: Screen brightness control fails on Dell Studio 1558 To manage notifications about this bug go to: https://bugs.launchpad.net/null/+bug/568611/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
