overview for nexv

Single board computer for selfhosting in c/selfhosted@lemmy.world

[–] nexv@programming.dev 2 points 1 month ago (1 children)

most N100/150 mini pc only consume 6-8w on idle (check reviews on YouTube), I wont say it is "power hungry"

intel N150 based tablets - anyone running Linux on them yet? Fedora? in c/linux@lemmy.ml

[–] nexv@programming.dev 2 points 5 months ago

During idle (or very low load) yes (5-10W), but not under load (watching video, web browsing, etc).

intel N150 based tablets - anyone running Linux on them yet? Fedora? in c/linux@lemmy.ml

[–] nexv@programming.dev 7 points 5 months ago* (last edited 5 months ago) (2 children)

I have a N150 mini PC running F42 (KDE), it runs basically perfectly. N150 is a pretty new CPU so you will need a recent kernel, and F42 already using 6.14, so it is fine (just don't run Debian on it).

However the only thing that worries me is the battery of that tablet. The N150 use around 10-20W under load, and with the 25WHr battery, it probably going to latest around 1 to 2 hours only.

Fix High Idle Power Consumption with AMD dGPU on Kernel 6.13 in c/linux@lemmy.ml

[–] nexv@programming.dev 2 points 7 months ago (1 children)

Interesting, maybe this issue only happens for RDNA3?

I'm also using F41 with same kernel but with KDE. Display is 2560x1440 @ 120Hz. On 3D_FULLSCREEN, my pp_dpm_mclk is on 772Mhz most of the time with some occasional 456Mhz, but never drop to 96Mhz. It will only drop to 96Mhz if I change to BOOUP_DEFAULT (or POWER_SAVING).

Fix High Idle Power Consumption with AMD dGPU on Kernel 6.13 in c/linux@lemmy.ml

[–] nexv@programming.dev 4 points 7 months ago (1 children)

You can use nvtop or lm_sensors to read the GPU power (PPT)

66

Fix High Idle Power Consumption with AMD dGPU on Kernel 6.13 (programming.dev)

submitted 7 months ago* (last edited 7 months ago) by nexv@programming.dev to c/linux@lemmy.ml

19 comments fedilink

I am using a AMD RX 7800 XT and noticed that my idle power consumption has went up recently from ~5-10W to ~30W. After some investigation I found out it was caused by the change to the default power profiles from BOOTUP_DEFAULT to 3D_FULLSCREEN in 6.13. When in 3D_FULLSCREEN profile, the GPU memory clock won't transition to the lowest clock speed and consuming extra ~20W (!!) of power.

To fix this, I have to manually change the power profile using following commands (as root):

echo 'manual' > /sys/class/drm/card1/device/power_dpm_force_performance_level
# check the available power profiles to get the index
cat /sys/class/drm/card1/device/pp_power_profile_mode
# normally 0 = BOOTUP_DEFAULT
echo 0 > /sys/class/drm/card1/device/pp_power_profile_mode

(you may need to change card1 to card0 depends on your system)

Note that the configuration is not persisted across reboot and you may encounter shuttering during gaming with BOOTUP_DEFAULT.

I recommend to use tools like LACT to automatically apply the power profile on startup and also automatically switch the profile to 3D_FULLSCREEN when running games.

Edit: you should check you current GPU idle power consumption first (with nvtop or lm_sensors) before applying the change, the issue may not affect all AMD GPU

The RTX 5070 reviews are in, and let’s just say people aren’t happy in c/technology@lemmy.world

[–] nexv@programming.dev 40 points 7 months ago (3 children)

I hope AMD can take a significant market share from NVIDIA while NVIDIA is too busy counting money from the AI bubble

Firefox 135 Published With Safeguards To Prevent Overwhelming The Back History in c/firefox@lemmy.ml

[–] nexv@programming.dev 2 points 8 months ago

Most of the time it is just some incompetent webdevs implements redirect in a bad way, but there are some websites abuse it maliciously.

Bcachefs Fixes Pull Once Again Frustrates Linus Torvalds - Two Choices Offered in c/linux@programming.dev

[–] nexv@programming.dev 67 points 1 year ago (1 children)

If I'm Linus, i would have removed bcachefs from mainline already. From his reply he never once admit his attitude problem and keep thinking he is right.

This type of people can't work with others, not today, not in future.

"participants who had access to an AI assistant wrote significantly less secure code" and "were also more likely to believe they wrote secure code" - 2023 Stanford University study published at CCS23 in c/technology@lemmy.ml

[–] nexv@programming.dev 55 points 1 year ago

Not specified for this research but... if you rely on LLM to write code that is security-sensitive, I don't expect you to write secured code without LLM anyway

How to send DDC commands or run script on window focus in c/kde@lemmy.kde.social

[–] nexv@programming.dev 3 points 1 year ago

You can write a Kwin script and connect to the windowActivated function. Unfortunately you can't run arbitrary command from Kwin script, but as suggested in the comment you can use DBus to workaround that.

workspace.windowActivated.connect(function(client) {
    if (client != null && client.caption == "name") {
        callDBus(...); // call your DBus function which call ddcutil
    }
})

Just an example, you will have to do some trial and error yourself!

OpenAI's GPT Trademark Request Has Been Denied in c/technology@lemmy.world

[–] nexv@programming.dev 6 points 2 years ago (1 children)

what's the exact prompt?

Trayscale, a nice little GUI for Tailscale in c/linux@lemmy.ml

[–] nexv@programming.dev 4 points 2 years ago

I'm using Tailscale Status Gnome extension which works pretty well. But good to see alternatives that is not tied to specific DE.