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    SubjectRe: 2.6.30-rc1 (latest git): thinkpad-acpi: cannot control brightness with hotkeys
    Date
    On Sunday 12 of April 2009, Arkadiusz Miskiewicz wrote:
    > On Saturday 11 of April 2009, Niel Lambrechts wrote:
    > > Hi there,
    > >
    > > With latest git kernel, I'm no longer able to control my Thinkpad (W500)
    > > brightness, although I can still control the backlight, bluetooth etc.
    >
    > Same problem here (but no warning) on T400. I wasn't able to get it
    > working. Tried using different values (0, 1,2, 3) for brightness_mode
    > without success.

    The more interesting is that brightness control starts working after I suspend
    to ram and resume.

    Possibly related line logged after resume:
    [ 8579.660535] ACPI: EC: non-query interrupt received, switching to interrupt
    mode
    --
    Arkadiusz Miśkiewicz PLD/Linux Team
    arekm / maven.pl http://ftp.pld-linux.org/

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