Comments for Open Minded Brain

Comment on Gedit LaTeX Plugin with live preview in split window by guest

guest — Sat, 12 Jan 2013 10:44:53 +0000

Seems not to work with http://git.gnome.org/browse/gedit-latex/tree/?id=3.4.1

Comment on Undervolting in Ubuntu 10.04 (Lucid) LTS by hanktard

hanktard — Fri, 03 Feb 2012 09:44:15 +0000

In Ubuntu 11.10 i had to add phc-intel to /etc/modules in order to get it to load at boot instead of acpi-cpufreq. to unload acpi-cpufreq on my running system caused an error since the module was in use.

Comment on Undervolting in Ubuntu 10.10 (Maverick) by Tomasz Habiger

Tomasz Habiger — Sun, 29 Jan 2012 15:57:19 +0000

Hello! Great post and still useful in 2012 with phc 0.4 and linux kernel version 3.2:) However, I’ve found a problem while running your script.

I don’t know the direct cause of this behavior but something overwrites CPU frequency settings that tweaking script tries to put in /sys/devices/system/cpu/cpuX/cpufreq/scaling_setspeed. As a result only the highest frequency is being tested.

Instead of investigating power management software installed that is most suspected, my workaround for this is to change line 359 from:

printf “${freq[$cur_pos]}” | sudo tee $i/scaling_setspeed > /dev/null

to:

printf “${freq[$cur_pos]}” | sudo tee $i/scaling_max_freq > /dev/null

Comment on Undervolting in Ubuntu 10.04 (Lucid) LTS by JamesRamone

JamesRamone — Fri, 13 Jan 2012 14:33:56 +0000

Thanks alot, that script just made my day I’m on oneiric, I have phc kernel, drivers but I wasn’t able to run phc-tool… Your script just did what I needed
Btw. I have Acer 6920g and default voltage set 200mV higher than the values from Intel is really not cool…
Once more, thank You

Comment on Undervolting in Ubuntu 10.04 (Lucid) LTS by siem

siem — Tue, 20 Dec 2011 07:06:06 +0000

How long shoult I wait after ‘make prepare’? It seems nothing is happening and I’m waiting since five minutes or more…

Comment on Undervolting in Ubuntu 10.04 (Lucid) LTS by Scott

Scott — Tue, 29 Nov 2011 16:26:32 +0000

This is what I get:
scott@scott-laptop:~/Desktop/phc-intel-0.3.2-10$ uname -r
2.6.32-33-generic-phc
scott@scott-laptop:~/Desktop/phc-intel-0.3.2-10$ make prepare
FOUND AVAILABLE PATCHSET. PREPARING.
patching file phc-intel.c
scott@scott-laptop:~/Desktop/phc-intel-0.3.2-10$ make
make -C /lib/modules/`uname -r`/build SUBDIRS=/home/scott/Desktop/phc-intel-0.3.2-10 modules
make[1]: Entering directory `/usr/src/linux-headers-2.6.32-33-generic-phc’
CC [M] /home/scott/Desktop/phc-intel-0.3.2-10/phc-intel.o
Building modules, stage 2.
MODPOST 1 modules
LD [M] /home/scott/Desktop/phc-intel-0.3.2-10/phc-intel.ko
make[1]: Leaving directory `/usr/src/linux-headers-2.6.32-33-generic-phc’
scott@scott-laptop:~/Desktop/phc-intel-0.3.2-10$ sudo make install
install -m 644 -o root -g root phc-intel.modprobe /etc/modprobe.d/phc-intel.conf
mkdir -p /lib/modules/2.6.32-33-generic-phc/extra
install -m 644 -o root -g root phc-intel.ko /lib/modules/2.6.32-33-generic-phc/extra/
depmod 2.6.32-33-generic-phc -a
scott@scott-laptop:~/Desktop/phc-intel-0.3.2-10$ cat /sys/devices/system/cpu/cpu0/cpufreq/phc_default_vids
cat: /sys/devices/system/cpu/cpu0/cpufreq/phc_default_vids: No such file or directory

I have rebooted a couple times already and am not sure where to go from here. I did navigate to /sys/devices/system/cpu/ and instead of cpufreq being a subfolder of cpu0 it is in the same folder. I think this may be causing this but if I look in cpufreq there is not phc_default_vids. Any suggestions?

Comment on Smart Roadster by mihai007

mihai007 — Mon, 28 Nov 2011 00:29:16 +0000

Leave it stock more or less, actually it already has a sports air intake filter and sports front brakes.

Comment on Smart Roadster by Frank

Frank — Sun, 27 Nov 2011 10:46:37 +0000

Nice car! Are you leaving it stock or are there some mods/tweaks you want to apply?

Comment on Ubuntu 10.10 unlock default keyring by neilhoja

neilhoja — Sun, 13 Nov 2011 19:18:30 +0000

thanks!!

Comment on Undervolting in Ubuntu 10.04 (Lucid) LTS by Benko

Benko — Sun, 02 Oct 2011 19:36:55 +0000

I have a laptop with a Core 2 Duo P8xxx. I run W7 and Ubuntu 10.04 (both 64-bit) on it.

I use RMClock on my W7 partition and I know that my system runs fine under full load at 0.925V (I have been running it for more than 30 months now).

Is there any way I can painlessly undervolt the CPU on Ubuntu without going through the long testing steps? If not, I may just have to suck it up and follow the above instructions.

Thank you, this is a great guide.