Re: X200s high pitched/high frequency noise
Posted: Fri Jun 26, 2009 3:03 pm
I solved the pitch noise problem:
http://www.thinkwiki.org/wiki/Problem_w ... tch_noises
http://www.thinkwiki.org/wiki/Talk:Prob ... tch_noises
I added this "processor.max_cstate=2" option to the kernel in the
boot file managed by grub (see below, red)
This way I think the battery life is shorter but, since I am 99% of my time
plugged to power, I cannot be bothered and, if I ever need more battery, I
will edit grub on the fly and remove that option...
It's GOOD, because I will have to spend many hours on fedora the next days...
Pau
[root@hux pau]# cat /boot/grub/menu.lst
default=0
timeout=5
splashimage=(hd0,0)/grub/splash.xpm.gz
#hiddenmenu
# OpenBSD Chainloading stanza.
#
title OpenBSD 4.5
root (hd0,2)
makeactive
chainloader +1
title Fedora 11
root (hd0,0)
kernel /vmlinuz-2.6.29.4-167.fc11.i586 ro root=UUID=61c5b74e-f6b6-44a7-a956-4a5cdf3559ac rhgb quiet processor.max_cstate=2
initrd /initrd-2.6.29.4-167.fc11.i586.img
http://www.thinkwiki.org/wiki/Problem_w ... tch_noises
http://www.thinkwiki.org/wiki/Talk:Prob ... tch_noises
I added this "processor.max_cstate=2" option to the kernel in the
boot file managed by grub (see below, red)
This way I think the battery life is shorter but, since I am 99% of my time
plugged to power, I cannot be bothered and, if I ever need more battery, I
will edit grub on the fly and remove that option...
It's GOOD, because I will have to spend many hours on fedora the next days...
Pau
[root@hux pau]# cat /boot/grub/menu.lst
default=0
timeout=5
splashimage=(hd0,0)/grub/splash.xpm.gz
#hiddenmenu
# OpenBSD Chainloading stanza.
#
title OpenBSD 4.5
root (hd0,2)
makeactive
chainloader +1
title Fedora 11
root (hd0,0)
kernel /vmlinuz-2.6.29.4-167.fc11.i586 ro root=UUID=61c5b74e-f6b6-44a7-a956-4a5cdf3559ac rhgb quiet processor.max_cstate=2
initrd /initrd-2.6.29.4-167.fc11.i586.img