On Thursday 03 November 2005 03:54, Pierre Ossman wrote:
> I discovered a problem with my laptop keyboard when the machine failed
> to suspend. Pavel Machek pointed me in your direction for guidance. :)
>
> The original issue (swsusp failing) is in this thread:
>
> http://marc.theaimsgroup.com/?t=113093802700002&r=1&w=2
>
> The side issue is that the keyboard goes completely dead when the
> suspend fails like this. Not even hardware buttons that control the
> intensity of the TFT backlight work.
>
Are these controlled by ACPI?
> The problem doesn't happen every time, but it seems to be often enough
> to do some decent testing.
>
> The problem seems to have appeared after 2.6.14 was released. Since the
> problem is intermittent I can't be 100% sure of this, but it's fairly
> likely since none of the tests before 2.6.14 failed.
>
It feels like device_resume is not called somewhere when swsusp fails.
Could you try activating debug mode for i8042:
echo 1 > /sys/modules/i8042/parameters/debug
...and then making it fail. Then we'll see if i8042 resume methods are
called and whether they succeed.
--
Dmitry
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