I have tested the bug with the latest 3.5 kernel:
uname -a
Linux *** 3.5.0-030500rc7-generic #201207142035 SMP Sun Jul 15 00:42:54 UTC
2012 i686 i686 i386 GNU/Linux
Unfortunately the problem still persists.
Actually, I have forgot to add that I experimented with the cpufreq-*
utilities and if I cpufreq-set the performance governor, the processors
will run happily at 1.8 GHz. It's when I apply the ondemand (which, of
course, is also the default) governor that I can get only 800 MHz.
Running cpufreq-info at 1 second intervals one can see how the 1.8GHz
percentage drops, regardless of CPU load:
cpufreq stats: 1.80 GHz:10.23%, 1.80 GHz:0.00%, 1.20 GHz:0.00%, 800
MHz:89.77% (3)
cpufreq stats: 1.80 GHz:10.22%, 1.80 GHz:0.00%, 1.20 GHz:0.00%, 800
MHz:89.78% (4)
cpufreq stats: 1.80 GHz:10.22%, 1.80 GHz:0.00%, 1.20 GHz:0.00%, 800
MHz:89.78% (3)
cpufreq stats: 1.80 GHz:10.21%, 1.80 GHz:0.00%, 1.20 GHz:0.00%, 800
MHz:89.79% (4)
cpufreq stats: 1.80 GHz:10.21%, 1.80 GHz:0.00%, 1.20 GHz:0.00%, 800
MHz:89.79% (3)
cpufreq stats: 1.80 GHz:10.19%, 1.80 GHz:0.00%, 1.20 GHz:0.00%, 800
MHz:89.80% (4)
cpufreq stats: 1.80 GHz:10.20%, 1.80 GHz:0.00%, 1.20 GHz:0.00%, 800
MHz:89.80% (3)
cpufreq stats: 1.80 GHz:10.18%, 1.80 GHz:0.00%, 1.20 GHz:0.00%, 800
MHz:89.81% (4)
cpufreq stats: 1.80 GHz:10.18%, 1.80 GHz:0.00%, 1.20 GHz:0.00%, 800
MHz:89.81% (3)
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1029583
Title:
Dell Inspiron 1420 without battery: processor.ignore_ppc does nothing
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1029583/+subscriptions
--
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
