[Bugme-new] [Bug 32592] New: Asus UL30VT backlight control only works with acpi_osi="Linux" acpi_osi="!Windows 2009"

bugzilla-daemon at bugzilla.kernel.org bugzilla-daemon at bugzilla.kernel.org
Sun Apr 3 20:16:53 PDT 2011


https://bugzilla.kernel.org/show_bug.cgi?id=32592

           Summary: Asus UL30VT backlight control only works with
                    acpi_osi="Linux" acpi_osi="!Windows 2009"
           Product: ACPI
           Version: 2.5
    Kernel Version: 2.6.38
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Other
        AssignedTo: acpi_other at kernel-bugs.osdl.org
        ReportedBy: alex.williamson at redhat.com
        Regression: No


Created an attachment (id=53362)
 --> (https://bugzilla.kernel.org/attachment.cgi?id=53362)
Asus UL30VT Bios 211 DSDT

Asus UL30VT backlight control only works with acpi_osi="Linux"
acpi_osi="!Windows 2009".  Without these options, I get a desktop notification
for the brightness when using the Fn brightness up/down keys, but no change in
display brightness.  Likewise the sysfs brightness control thinks it's doing
it's job when I read and write the file, but there's no change in the display
state.  Either method causes the display brightness to change when the system
is rebooted, as if Linux setup the change, but didn't actually flush it out to
hardware.

-- 
Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are on the CC list for the bug.


More information about the Bugme-new mailing list