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  1. Colin Ian King, kernel engineer tested P state...

    Colin Ian King, kernel engineer tested P state extensively with a watts meter to find out higher consumption of pstate versus acpi cpufreq and its on his recommendation pstate was disabled for Ubuntu...
  2. I use Arch and am quite happy with the distro but...

    I use Arch and am quite happy with the distro but for general deployment and stability I use Ubuntu with PPA. I get GIMP, Libre Office and more updates faster than in Arch and yet its well tested and...
  3. Same issue here on both my IVB and Haswell...

    Same issue here on both my IVB and Haswell laptops, heat goes up with pstate enabled, also peak temps are higher unless I use Thermald. With ondemand temps are lowered and I also don't find any...
  4. Was intel pstate enabled for kernel 3.11?

    Was intel pstate enabled for kernel 3.11?
  5. Was pstate disabled or enabled in kernel 3.11?

    Was pstate disabled or enabled in kernel 3.11?
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    Tyan used to be Japanese, dunno whats their...

    Tyan used to be Japanese, dunno whats their status now.
  7. Lets hope AMD can get into this act as well and...

    Lets hope AMD can get into this act as well and then cpu-freq would be history.
  8. Good pint thats why the power savings nor the...

    Good pint thats why the power savings nor the full load performance have any noticeable effect yet as shown by the Phoronix benchmarks but my big lure for pstate is that the Thermal Daemon gets to...
  9. The idle is high because unlike cpu-freq with...

    The idle is high because unlike cpu-freq with ondemand, one of the cores run at relative higher frequencies to keep the CPU in ready state while the other cores are put in deep sleep C states. I...
  10. I have compared it via different distros and also...

    I have compared it via different distros and also with pstate enabled in kernel via grub entry. In both cases the results paralleled my experience. Idle temps go up on pstate to almost three degrees...
  11. Intel pstate doesn't make much difference in...

    Intel pstate doesn't make much difference in battery life as I have had the chance to compare a brand new kernel 3.12 Manjaro with Ubutnu 13.10 which comes with kernel 3.11 with pstate disabled. What...
  12. I have the same issue when I install oibaf-ppa...

    I have the same issue when I install oibaf-ppa which has the latest MESA and Intel drivers. Google Chrome shows hw crash and won't detect either MESA or Intel drivers.
  13. Agreed and Manjaro makes it super easy to install...

    Agreed and Manjaro makes it super easy to install and remove kernels with all the benefits of Arch.
  14. It would be really nice if someone could do a...

    It would be really nice if someone could do a pstate versus ondemand power savings. In absolute load tests, both seem evenly matched even though my Ivybridge and Haskell i7s behave better with pstate...
  15. Interesting as Ubuntu 13.10 ships with pstate...

    Interesting as Ubuntu 13.10 ships with pstate disabled. Wonder if the results would have been different if the driver had been enabled instead of ondemand.
  16. I was under the impression at least for SB and...

    I was under the impression at least for SB and IVB and Haskell, the Intel pstate driver in kernels 3.9+ handle the turbo frequencies.
  17. Its a pity Ubuntu 13.10 disabled pstate due to...

    Its a pity Ubuntu 13.10 disabled pstate due to some complaints on Launchpad but which were not substantiated.Although it can be enabled via kernel adding intel_pstate=enable. Pstate runs far better...
  18. Anyone done any power and heat testing for nvidia...

    Anyone done any power and heat testing for nvidia 319 with optimus and optimus prime versus nvidia driver+bumblebee?
  19. It seems Ubuntu 12.04.3 LTS has added support for...

    It seems Ubuntu 12.04.3 LTS has added support for Optimus via nvidia-prime package and patched 3.8 kernel. I installed it on my i7 laptop with nvidia 630M. Incidentally it installs the nvidia driver...
  20. As reported elsewhere for Ubuntu x64 there are...

    As reported elsewhere for Ubuntu x64 there are multiarch issues and it seems to bork the installation. On both my x64 12.04 LTS and 12.10 it managed to make the touchpad dysfunctional after it...
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