On Fri, 15 Feb 2008 04:51:15 -0800 (PST) bugme-daemon@xxxxxxxxxxxxxxxxxxx wrote: > http://bugzilla.kernel.org/show_bug.cgi?id=9995 > > Summary: 2.6.25-rc1 regression - IBM ACPI backlight controlls do > not work > Product: ACPI > Version: 2.5 > KernelVersion: 2.6.25-rc1 > Platform: All > OS/Version: Linux > Tree: Mainline > Status: NEW > Severity: normal > Priority: P1 > Component: BIOS > AssignedTo: acpi_bios@xxxxxxxxxxxxxxxxxxxx > ReportedBy: xhejtman@xxxxxxxxxx > > > Latest working kernel version: 2.6.24 > Earliest failing kernel version: 2.6.25-rc1 > Distribution: Ubuntu/Hardy > Hardware Environment: ThinkPad T61 > Software Environment: n/a > Problem Description: /sys/class/backlight/acpi_video0 does not control > backlight, nothing happens if I change brightness. > > Steps to reproduce: echo {15,5,0} > /sys/class/backlight/acpi_video0/brightness > nothing happens. > I've lost the plot on what's happening with backlight. I think you're about to find that this is not-a-bug, even though it stopped working. - To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html