[ltp] ACPI and CPU issues on Thinkpad X220 running Debian GNU/Linux

Fri, 2 Sep 2011 12:29:07 +0200

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Hallo everybody=2C
just two issues=2C as in the title=2C not severe but really annoying up by =
now.
I'm running Debian Wheezy on my Thinkpad X220 429137G=2C i5 CPU.

First: Anything else working good=2C during hibernation with pm-hibernate
i get in kernel and in console:" ACPI: Unable to dock!" but Hibernation wor=
ks good
even after resume=3B only somtimes i've to unload/reload wifi kernel module=
 in order
to make it work. Don't know if it's a related issue. The Bios is upgraded t=
o the las 1.19
release.

Second: In powetop i see two missing idle state for the CPU=2C namely C3 an=
d C4 which i was=20
expected to found there. Is it a wrong guess from me or is there any proble=
m (which could be
obscure for me)? If those idle states miss=2C i guess it would be a trouble=
 for the CPU and the=20
whole system=2C 'cause maybe the CPU stays more time on unrequested powerfu=
l states so determining
also resource consumption=2C overheating and fan noise.

I repeat=2C these issues are not severe for the system=2C which can work fi=
ne=2C but are become really
annoying with the time.
Waiting for your prompt and useful reply
Best regards
 		 	   		  =

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Hallo everybody=2C<br>just two issues=2C as in the title=2C not severe but =
really annoying up by now.<br>I'm running Debian Wheezy on my Thinkpad X220=
 429137G=2C i5 CPU.<br><br>First: Anything else working good=2C during hibe=
rnation with pm-hibernate<br>i get in kernel and in console:" ACPI: Unable =
to dock!" but Hibernation works good<br>even after resume=3B only somtimes =
i've to unload/reload wifi kernel module in order<br>to make it work. Don't=
 know if it's a related issue. The Bios is upgraded to the las 1.19<br>rele=
ase.<br><br>Second: In powetop i see two missing idle state for the CPU=2C =
namely C3 and C4 which i was <br>expected to found there. Is it a wrong gue=
ss from me or is there any problem (which could be<br>obscure for me)? If t=
hose idle states miss=2C i guess it would be a trouble for the CPU and the =
<br>whole system=2C 'cause maybe the CPU stays more time on unrequested pow=
erful states so determining<br>also resource consumption=2C overheating and=
 fan noise.<br><br>I repeat=2C these issues are not severe for the system=
=2C which can work fine=2C but are become really<br>annoying with the time.=
<br>Waiting for your prompt and useful reply<br>Best regards<br> 		 	   		 =
 </div></body>
</html>=

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