You are not logged in.

#1 2019-04-26 02:00:27

thehamzan6
Member
Registered: 2016-07-13
Posts: 9

Intel Turboboost disabled and undetected [SOLVED]

Hello fellow Archlinux users, I may be stuck with a little problem that has limited information available.

I use a Dell Inspiron 5570 laptop, with the processor Intel i7-8550U 1.8Ghz. This processor has turboboost up to 4Ghz.

$ sudo cpupower frequency-info
analyzing CPU 0:
  driver: intel_pstate
  CPUs which run at the same hardware frequency: 0
  CPUs which need to have their frequency coordinated by software: 0
  maximum transition latency:  Cannot determine or is not supported.
  hardware limits: 400 MHz - 1.80 GHz
  available cpufreq governors: performance powersave
  current policy: frequency should be within 1.80 GHz and 1.80 GHz.
                  The governor "performance" may decide which speed to use
                  within this range.
  current CPU frequency: Unable to call hardware
  current CPU frequency: 1.80 GHz (asserted by call to kernel)
  boost state support:
    Supported: no
    Active: no
$ cat /sys/devices/system/cpu/intel_pstate/no_turbo
1
$ su -c "echo 0 > /sys/devices/system/cpu/intel_pstate/no_turbo"
bash: line 0: echo: write error: Operation not permitted
$ cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
performance

Turbo boost is enabled in the BIOS. What am I missing?

Last edited by thehamzan6 (2019-04-26 12:03:06)

Offline

#2 2019-04-26 07:41:13

V1del
Forum Moderator
Registered: 2012-10-16
Posts: 21,427

Re: Intel Turboboost disabled and undetected [SOLVED]

Dells have a knack for this, FWIW something that has been reported to be helping, shutdown, take out the battery for a few minutes, reinsert, recheck.

Offline

#3 2019-04-26 11:46:49

thehamzan6
Member
Registered: 2016-07-13
Posts: 9

Re: Intel Turboboost disabled and undetected [SOLVED]

V1del wrote:

Dells have a knack for this, FWIW something that has been reported to be helping, shutdown, take out the battery for a few minutes, reinsert, recheck.

I removed the battery for 30 minutes and that unfortunately made no difference.

$ sudo cpupower frequency-info
[sudo] password for root: 
analyzing CPU 0:
  driver: intel_pstate
  CPUs which run at the same hardware frequency: 0
  CPUs which need to have their frequency coordinated by software: 0
  maximum transition latency:  Cannot determine or is not supported.
  hardware limits: 400 MHz - 4.00 GHz
  available cpufreq governors: performance powersave
  current policy: frequency should be within 1.80 GHz and 3.20 GHz.
                  The governor "performance" may decide which speed to use
                  within this range.
  current CPU frequency: Unable to call hardware
  current CPU frequency: 3.20 GHz (asserted by call to kernel)
  boost state support:
    Supported: yes
    Active: yes

I disabled Turboboost in the BIOS, then booted into archlinux. I restarted Archlinux, went to the bios and enabled turboboost, and then booted back to Archlinux and that seems to have fixed the problem.

Last edited by thehamzan6 (2019-04-26 12:02:35)

Offline

Board footer

Powered by FluxBB