I have upgraded my laptop from Intel Pentium P6100 to Core i5-460M. i5 supports Turbo Boost. To switch this I need to do:
echo 0 or 1 > /sys/devices/system/cpu/cpufreq/boost
But my System doesn’t have this file. When I start system from LiveCD this file is present in root of LiveCD. LiveCD has same version as installed System.
Also I have problem with integrated graphics. After boot I have such message:
unim95@UNIm95-Thinkpad:~$ dmesg |grep 915 [ 26.342983] intel ips 0000:00:1f.6: failed to get i915 symbols, graphics turbo disabled
How can I control intel VGA when
ll /sys/kernel/debug/ |grep vgaswitcheroo
Gives no output.
- OS:= Ubuntu 12.04 LTS(LiveCD too)
- Laptop:= ThikPad Edge 14 0578RE8
- Processor:= Corei5-460M
- VGA:= Ati HD4570/5145