overlocking arm_freq=800 doesn't work

[xnosek00]

I have "arm_freq=800" in my /boot/config.txt but it doesn't work.

pi@raspberrypi ~ $ cat /proc/cpuinfo
Processor : ARMv6-compatible processor rev 7 (v6l)
BogoMIPS : 697.95
Features : swp half thumb fastmult vfp edsp java tls
CPU implementer : 0x41
CPU architecture: 7
CPU variant : 0x0
CPU part : 0xb76
CPU revision : 7

I have current firmware. It worked fine 14 days before.

I have updated system today (rpi-update, aptitude update, aptitude upgrade). What is wrong?

distro: RASPBIAN

pi@raspberrypi ~ $ uname -a
Linux raspberrypi 3.2.27+ #138 PREEMPT Mon Sep 10 01:04:03 BST 2012 armv6l GNU/Linux

[xnosek00]

pi@raspberrypi ~ $ /opt/vc/bin/vcgencmd measure_clock arm
frequency(45)=700072000
pi@raspberrypi ~ $ /opt/vc/bin/vcgencmd measure_clock core
frequency(1)=350000000

[popcornmix]

http://www.raspberrypi.org/phpBB3/viewtopic.php?f=29&t=6201

short answer: arm_freq will be 800 when it is busy. Add "force_turbo=1" if you want overclock when idle.

[xnosek00]

Thank you, it helps.