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Re: TP Edge E220s freezes when hotkeys pressed



On Tue, 10 May 2011, Andy Grover wrote:
> I just got an Edge e220s, and am having some issues. If I press Fn-F7
> (lower screen brightness) two times or Fn-F8 (increase brightness) the
> laptop freezes up solid. I get an unhandled HKEY 0x6050 message from
> Fn-F7 the first time I press it, but I'm not thinking thinkpad_acpi is
> the culprit, since  the behavior is the same (2nd F7, 1st F8 freezes
> laptop) even without the module loaded.

Hmm, yet another new event (0x6050).  I would appreciate if you could help
me track down what it means...

As for your brightness change issues: try unloading the ACPI "video" module.
Does that help avoid the crashes?  If it doesn't, try unloading BOTH ACPI
"video" and "thinkpad-acpi".

If you use xrandr to change screen brightness directly (without the
hotkeys), does it cause the crash?

> Do you have any advice or insight into this issue, or how to diagnose
> the cause of this issue?

It is likely something nasty in KMS or X.org backlight handling.  But do
check whether a BIOS update is available for your ThinkPad, it just might
help...

-- 
  "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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