http://bugzilla.kernel.org/show_bug.cgi?id=14216





--- Comment #5 from Del <delo...@gmail.com>  2009-11-25 13:48:58 ---
Thanks for reopening the report Len, I highly appreciate all help on this
issue!

I did dig further into the DSDT patch after I posted, helped by pointers from
Andi Kleen, so if I get the opportunity I may get to it and try out some DSDT
patches.

I have been in steady dialogue with Compal's Bios developers since this report,
and I hope they will follow through with a Bios update. If so, I will make sure
to update the information here immediately.

Before I posted this bug-report I contacted Cezary Jackiewicz, the developer of
the compal-laptop module, this was his response on the issue:
"Sorry, this compal probably need some kernel stuff to recognize
hardware switch/buttons etc. My module based only on acpi structures;
hardware switches overwrite this."

One main issue that I haven't tracked down is that power saving features does
not work. More precisely, the cpu does not seem to throttle down, and I am not
sure about the gpu either. So the battery time is reduced to approximately half
of expected.

The laptop is currently not in my possession, but I will acquire the
/proc/acpi/video and /sys/class/backlight listing shortly anyway, and report
back on those.

Cheers,
Del

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