Comment 23 for bug 274938

Bill,
Can you give me a quick call. I would just like to better understand this
issue and our options. I won't take more than 10 minutes.

Thanks,
Chris Stefanescu

Levin Consulting
Phone: 216-595-9828 ext. 129
Mobile: 216-374-6943

On Mon, Sep 29, 2008 at 11:52 AM, Bill Filler <email address hidden>wrote:

> This is most definitely a BIOS issue. The lid open event is never being
> sent by the bios. The steps are very reproducible:
>
> 1) reboot unit
> 2) cat /proc/acpi/button/lid/LID0/state
> result = open
> 3) close the lid, the unit suspends
> 4) open the lid, nothing happens
> 5) press power button to resume
> 6) cat /proc/acpi/button/lid/LID0/state
> expected results = open
> real result = closed
> This is the problem. Now when ac is unplugged, g-p-m suspends because it
> thinks the lid is closed.
> 7) pull A/C cord
> expected result = screen brigthness change
> real result = unit suspends
>
> The other side effect of this bug is unit won't suspend anymore when you
> close the lid (because it think's it's already closed). Do the following to
> verify:
> - Follow steps 1-6 from above
> - Close lid:
> expected result = suspend
> real result = unit stays running
>
> I don't know how we can work around this problem without a bios fix. I
> guess we could try to disable suspend on lid close by default, but that
> causes problems of it's own. User expects a suspend on lid close and if
> it doesn't, the battery will run out. Thoughts?
>
> --
> unit suspends when AC adapter unplugged
> https://bugs.launchpad.net/bugs/274938
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>