Ryzen 7 7840HS is not running at full speed

[Neurrone]

@inthemirror will you report it to the business line you got? I'm literally unable to reach any competent support here. If so, could you also try to get them to enable ASPM?

With the previous 0.32 version of the bios, did you get issues with the fans randomly going to 100% and forever staying there till a suspend or restart? When that happens, keyboard and mouse input doesn't work reliably.

With 0.35, the fans stopped going crazy for me but while on battery, the keyboard doesn't register a small percent of keystrokes which is really annoying.

HP really seems incapable of getting their bios act together.

[Neurrone]

@inthemirror I can't reproduce the massive performance drop with bios version 01.03.05 Rev.A, just a 3% difference from my previous run a few months ago. That's a small enough difference that I'm personally not too worried about.

[inthemirror]

 Sorry, I'm an idiot, but not really.

I've long restored to using ryzenadj to cope with high idle power consumption and a special power setting for the embedded AMD GPU which actually forces RAM to downclock, hence the bad results. I've reverted the GPU power setting and it's now all fine.

The setting just in case is /sys/class/graphics/fb0/device/power_dpm_force_performance_level which I set to low. Now at auto it's all good.

However the issue with the CPU being stuck at 500MHz after several resume-suspend cycles persists. I will now run BIOS 01.03.02 Rev.A to recheck if it's affected because I remember it wasn't.

cat ryzen-powersave.sh 
#! /bin/bash

# 2023-08-07 00:46:52 - created
# 2023-08-10 14:15:30 - lots more limits
# 2023-08-12 20:11:58 - let's add a delay because --power-saving doesn't always work otherwise
# 2023-08-21 20:16:20 - tune for console and rc.d
# 2023-11-02 09:25:35 - setting for running on battery power
# 2023-11-16 15:45:27 - rewrite
delay=60

gpupower()
{
    gpudev=/sys/class/graphics/fb0/device/power_dpm_force_performance_level
    if [ -f $gpudev ]; then
        echo "$1" > $gpudev && echo -n "GPU performance set to: " && cat $gpudev
    else
        echo "iGPU [$gpudev] is missing!"
    fi
}

conf()
{
    if [ -z "$1" ]; then
        echo "Mains settings:"
        /usr/local/bin/ryzenadj --tctl-temp=70 --power-saving --stapm-limit=30000 --fast-limit=30000 --slow-limit=20000 2>&1 | grep -v SMU
        gpupower auto
    else # with any second argument, i.e. "battery"
        echo "Battery settings:"
        /usr/local/bin/ryzenadj --tctl-temp=75 --power-saving --stapm-limit=15000 --fast-limit=15000 --slow-limit=10000 2>&1 | grep -v SMU
        echo "Enabling GPU low power, this limits RAM speed!"
        gpupower low
    fi

    true
}

echo "Enabling power savings via ryzenadj and /sys ..."
conf "$1"

if [ "$TERM" = "linux" -o "$TERM" = "xterm-256color" ]; then
    :
else
    echo "Second attempt in $delay seconds ..."
    ( sleep $delay; conf ) &
fi

[inthemirror]

I can no longer create issues for my business account, I've no idea what's going on, I'll try later.

I've got no issues with fans or keyboard. Could be your software or Windows, I'm running Linux.

[Neurrone]

If you're using the latest version of the bios, there should be no more fan issues.

The easiest way I've found to reproduce the keyboard issue I mentioned is to do the following:

1. In a web browser with multiple tabs open, hold down the control key. Then press tab or shift+tab, keeping the control key held down
2. After 10 - 20 keystrokes, I'm finding that a keystroke isn't registered by the system.

This only happens when on battery.