[Ubuntu 22.04] wifiが不安定なのを直す [N100ミニPC]
先日、GMKtec NucBox G3というintel N100搭載のミニPCを購入。 Ubuntuを入れて使い始める …
公開日：
intel N100搭載のミニPCを使用していますが、排熱の問題もあると思うので、CPUの周波数制限をしたいと思い調べました。
変更前。最大3.4GHzまででるようになっています。
$ cpufreq-info
cpufrequtils 008: cpufreq-info (C) Dominik Brodowski 2004-2009
Report errors and bugs to cpufreq@vger.kernel.org, please.
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: 4294.55 ms.
hardware limits: 700 MHz - 3.40 GHz
available cpufreq governors: performance, powersave
current policy: frequency should be within 700 MHz and 3.40 GHz.
The governor "powersave" may decide which speed to use
within this range.
current CPU frequency is 842 MHz.まず、/etc/default/cpufrequtilsを作成して、中身は下記とします。
ENABLE="true"
GOVERNOR="powersave"
MAX_SPEED=2.10GHz
MIN_SPEED=700MHzその後サービスを再起動します。
sudo systemctl restart cpufrequtils変更後。最大2.10GHzになりました。
$ cpufreq-info
cpufrequtils 008: cpufreq-info (C) Dominik Brodowski 2004-2009
Report errors and bugs to cpufreq@vger.kernel.org, please.
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: 4294.55 ms.
hardware limits: 700 MHz - 3.40 GHz
available cpufreq governors: performance, powersave
current policy: frequency should be within 700 MHz and 2.10 GHz.
The governor "powersave" may decide which speed to use
within this range.
current CPU frequency is 811 MHz.