kpowersave broken after installing kde 4.6

[hipsterical]

Re: kpowersave broken after installing kde 4.6

PARTIALLY SOLVED - troubles happened because of a kernel module (acpi-cpufreq) not loaded at boot time. this also explains the erratic behaviour of kpowersave . from the system menu kpowersave is invoked w/ the argument --force-acpi-check wich also gave me a hint. doing a sudo modprobe-i acpi-cpufreq . i STILL have to discover why the module won't autoload anymore after installing kde 4.6 . now i have another problem, which is i am not able to set --min and --max frequencies by editing /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq and scaling_min_freq even doing a sudo call . what is weird to me is that i can fire up kate with kdesudo and edit it -works, but if i try an echo > it fails with permission denied (and root has sufficient permissions set there). but now this thread is going OT.

[kubicle]

Re: kpowersave broken after installing kde 4.6

now i have another problem, which is i am not able to set --min and --max frequencies by editing /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq and scaling_min_freq even doing a sudo call . what is weird to me is that i can fire up kate with kdesudo and edit it -works, but if i try an echo > it fails with permission denied (and root has sufficient permissions set there). but now this thread is going OT.

Redirection (>) is a shell function, and even if you run a command with sudo the shell is (normally) still running as a regular user (and so will the redirection).

You can either start a root shell (with 'sudo -i'),
or do something like:
echo foo | sudo tee /path/to/bar

[hipsterical]

Re: kpowersave broken after installing kde 4.6

wow thanks. one never stops learning...

[Melcar]

Re: kpowersave broken after installing kde 4.6

I just use cpufreq to load the appropriate CPU scaling modes for each custom profile I create with powerdevil (just make sure to change cpufreq's permissions first). I don't really buy the whole argument they use for taking away CPU scaling policies; all I know is that with the default "ondemand" mode I get a measly 30 min. from my aging battery, while with "powersave" I get a full hour (both doing the same tasks). Pissed me off when I found out about it, but you can always load your own profiles/scripts. What's wrong with leaving the option? Are we using GNOME here?

[Xinixs]

Re: kpowersave broken after installing kde 4.6

+1 for Melcar's rant. Yes, I know I can use cpufreq-set, but that's not the point. Linux has passed that point. I want easy access to hardware settings, instead of having them taken away from me. I am a software tester myself, and the new Powerdevil would never have made it past my desk.

[hipsterical]

Re: kpowersave broken after installing kde 4.6

kpowersave offered an easy, one click way to open and close the CPU mHz throttle , without having to make a sudo and/or manually edit text files . a working (_WORKING_) replacement is needed badly. i regret the migration to kde4: cool but not even remotely as business-like, pragmatic and mature as KDE3. also i strive to understand why plasmoids are useful. a friend of mine almost fell on the floor in laughter when i showed him that those things can tilt and rotate. both of us failed to understand the big point with that.
whatever. i am still stuck manually editing min_cpu_freq and buddies according to needs, and man it does suck.