Re: [regression] display dimming is slow and laggy

[Robert Hancock]

Maximilian Engelhardt wrote:
> Hello,
>
> I'm using kernel 2.6.26-rc6 at the moment and with it dimming the display is 
> slow and laggy. Using kernel 2.6.25 doesn't show this problem.
>
> Here is a more detailed explanation:
>
> I'm dimming my display with the appropriate keys on my laptop (Fn + 
> right/left). Till kernel 2.6.25 this has worked without any problems. Now I'm 
> using 2.6.26-rc6 and using the keys the display is dimming much slower and 
> also laggy. By laggy I mean if I hit the keys for increasing/decreasing 
> brightness it starts dimming and when I release the keys after some time it 
> still continues dimming for some steps.
>
> My laptop is a Acer Travelmate 661lci and has an Intel 855 chipset.
>
> I'll attach my dmesg output, please tell me if you need any further 
> information.

Think you forgot the dmesg. Are you seeing a "ACPI: EC: GPE storm 
detected, disabling EC GPE" message? See:

http://bugzilla.kernel.org/show_bug.cgi?id=10724

This seems to affect a lot of Acer laptops.
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