Re: [ltp] Re: thinkpad-acpi release 0.17-20071002 uploaded to ibm-acpi.sf.net

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On Wed, 03 Oct 2007, Chris Hanson wrote:
> Henrique de Moraes Holschuh wrote:
> > On Wed, 03 Oct 2007, Chris Hanson wrote:
> >> Henrique de Moraes Holschuh wrote:
> >>> Better use this one instead...
> >> The patch made no difference; it still gets stuck generating EINVAL.
> > 
> > :-(
> > 
> >> I forgot to mention that, although the /proc and /sys entries are unable
> >> to change the brightness, the hotkeys work fine, and the correct
> >> brightness level is shown by actual_brightness and brightness.
> > 
> > So the driver is always reading the correct brightness from hardware, but it
> > is still going bonkers when trying to set the brightness. Hmm.  Weird that I
> > cannot reproduce this, no matter how much I try.  Is there a possibility of
> > doing a quick try with just 2.6.22.9 + thinkpad-acpi without the other
> > patches, just to make sure it is not interacting in surprising ways with
> > something else?
> 
> I built it with exactly those things and nothing else.  The problem
> still occurs.  Let me play a little and see what else I can find out.

Try booting with ec_intr=0 in the kernel command line.  Who knows, it might
even help. I have seen weirder stuff...

Does the "printk on EINVAL" debug patch I sent ever triggers?  What values
it reports?

-- 
  "One disk to rule them all, One disk to find them. One disk to bring
  them all and in the darkness grind them. In the Land of Redmond
  where the shadows lie." -- The Silicon Valley Tarot
  Henrique Holschuh

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