Messages in this thread | | | Date | Wed, 1 Oct 2008 22:33:46 +0200 | From | Pavel Machek <> | Subject | Re: Thinkpad brightness keys kill X on 2.6.26.5 |
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On Wed 2008-10-01 11:28:34, Jeremy Fitzhardinge wrote: > Matthew Garrett wrote: >> On Tue, Sep 30, 2008 at 05:59:06PM -0700, Jeremy Fitzhardinge wrote: >> >> >>> On my shiny new X200 running Fedora Rawhide, I'm finding that the >>> brightness control keys work OK, but the backlight remains stuck off >>> after a resume. The machine is working fine but the backlight is >>> just off; I can see the display under a bright light. Switching >>> consoles and poking about in /sys/class/backlight/acpi_video?/ didn't >>> help. >>> >> >> Intel graphics, right? > > Yes. The new, erm , X4500? > >> The DRM layer should handle full resume on modern Intel hardware, but >> there's the potential for bugs. This is entirely unrelated to ACPI, >> though. >> > > OK, that's a good clue. I poke at acpi to change the brightness, so I'd > assumed that acpi would also handle turning the backlight on/off. > > I'm using the rawhide rather than standard kernel, but I'd thought they > were fairly similar.
I believe vanilla and rawhide kernels are _very_ different in this area.
On your config, s2ram -f -a 3 may be the right thing after all ;-).
Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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