CPU stuck at 800Mhz?

**mglae** · July 28, 2019 at 4:26 PM

scaling_cur_freq should be available for intel_pstate driver too, try:

Code

cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_cur_freq

SirMacke · July 28, 2019 at 6:34 PM

Code

LibreELEC:~ # cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_cur_freq
798743
799933
798720
798798
LibreELEC:~ #

**Da Flex** · July 28, 2019 at 8:23 PM Official Post

As I already mentioned: Do the tests with a stable release - 9.0.2 is the latest. Expect driver issues at 9.1.x development builds.

SirMacke · July 28, 2019 at 9:17 PM

Quote from Da Flex

As I already mentioned: Do the tests with a stable release - 9.0.2 is the latest. Expect driver issues at 9.1.x development builds.

Will do.

But if I remember correctly this issue has been present for years.

**Da Flex** · July 28, 2019 at 9:40 PM Official Post

Quote from SirMacke

Will do.

But if I remember correctly this issue has been present for years.

Thanks. I have seen a lot of people here in the forum, who run Intel NUC's without issues. That's why I'm curious about your one. The 9.1.x development is mainly targeted on RPi4B, which currently has heat issues. Maybe devs play around with CPU frequencies at the moment, so I suggest 9.0.2.

**blueribb** · July 28, 2019 at 11:01 PM

I have two old Intel i5 NUCs

Model: DC53427HYE (2013)

CPU: i5-3427U (base 1.80 GHz, Max Turbo 2.80 GHz)

With Libreelec 9.1.002 ALPHA, here are the readings I get in System Info / Hardware information:

CPU Temp: 120° F

CPU Speed: 798 MHz (most of the time) - over a 10 minute period I watched it go from 798 MHz up to 2186 MHz for only a few seconds.

I run CPU-Z on my Win 10 Desktop and I don't know if there is an similar addon for Kodi which gives accurate hardware readings.

Does LE even have the ability to throttle the CPU Speed lower than base ?

**Da Flex** · July 28, 2019 at 11:56 PM Official Post

Quote from blueribb

CPU Speed: 798 MHz (most of the time) - over a 10 minute period I watched it go from 798 MHz up to 2186 MHz for only a few seconds.

It looks like your system runs fine at ~800MHz, so I think that's the preferred state for LE. It supports my other advice to have a look at the UEFI display settings (HDMI / VGA). If LE has to feed two displays, then ~800MHz could be short.

**blueribb** · July 29, 2019 at 1:26 AM

I don't think anything is wrong. It probably just idles at 800 MHz and scales up to whatever is needed. SirMacke said it's "stuck" on 800 though. He should run an HD video and check the CPU speed at the same time.

**Da Flex** · July 29, 2019 at 5:14 AM Official Post

Another theory: maybe the "Intel burst technology" for temporary high frequencies on Celeron is not supported.

SirMacke · July 29, 2019 at 7:27 AM

Quote from blueribb

I don't think anything is wrong. It probably just idles at 800 MHz and scales up to whatever is needed. SirMacke said it's "stuck" on 800 though. He should run an HD video and check the CPU speed at the same time.

Ot is always on 800. Mkv, youtube, netflix. Cores at 100% and still only 800.

SirMacke · July 29, 2019 at 10:37 AM

Case solved!

In the end it might have been the powerplan also but I did CMOS and disabled and re-enabled speedstep.

Now @2Ghz in Netflix.

samsungs · December 12, 2021 at 8:23 PM

Quote from SirMacke

Case solved!
In the end it might have been the powerplan also but I did CMOS and disabled and re-enabled speedstep.
Now @2Ghz in Netflix.

+1 for this fix, worked for me!