On Tue, Mar 9, 2010 at 11:58 PM, Fabio Comolli <fabio.comolli@xxxxxxxxx> wrote: > Hi. > I have an EeePC 900 running 2.6.34-rc1. > > If I boot it on AC the cpu runs at full speed, 900MHz; if I boot it on > battery it runs only at 630Mhz. Plugging / unplugging the AC does not > change the cpu frequency. Only a reboot can change the situation. > > I already tried to echo 0 or 1 to the > /sys/devices/platform/eeepc/cpufv file; no effects, even if the file > changes its value. > > This is not a regression from 2.6.33: this behavior is also present in > that version. > > Does this ring any bells? This is really annoying, especially when > trying to watch a movie on battery. Also 3D apps show a 30% > performance drop, as expected. Can you change the frequency with cpufreq ? Did you try all cpufv values (see cpufv_available file) ? Is you bios up-to-date ? -- Corentin Chary http://xf.iksaif.net -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
