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* 2.6.25-rc1 regression - IBM ACPI backlight
@ 2008-02-14 10:38 Lukas Hejtmanek
  2008-02-14 12:24 ` Henrique de Moraes Holschuh
  0 siblings, 1 reply; 6+ messages in thread
From: Lukas Hejtmanek @ 2008-02-14 10:38 UTC (permalink / raw)
  To: linux-kernel

Hello,

as of 2.6.25-rc1, there is no more /sys/class/backlight/acpi_video1 which
controlled LVDS backlight on Lenovo ThinkPad T61. There is still acpi_video0
which seems to have sane values but echo N > brightness has no effect at all.

thinkpad_acpi module reports that ACPI controlled backlight is present.

-- 
Lukáš Hejtmánek

^ permalink raw reply	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2008-02-15 12:53 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2008-02-14 10:38 2.6.25-rc1 regression - IBM ACPI backlight Lukas Hejtmanek
2008-02-14 12:24 ` Henrique de Moraes Holschuh
2008-02-15 11:02   ` Lukas Hejtmanek
2008-02-15 11:50     ` Henrique de Moraes Holschuh
2008-02-15 12:07     ` Matthew Garrett
2008-02-15 12:53       ` Lukas Hejtmanek

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