Artificial incompatibility - a rant (Dell notebook)

Tiraon
Thu, 03 Apr 2025 21:38:30 +0000

As per title this is inspired by my recent problems with a Latitude 7320 notebook.

I can't use my desktop right now and so wanted some cheaper nb for normal usage and eventually settled on this model due to being able to get it at an acceptable ratio of price to age and seeing it as compatible on Ubuntu, not noticing the disclaimer until later.

The problems started right after installing Fedora KDE - the nb was running at absolutely abysmal performance and this problem affects several models.

Running passmark I've got above 2000 on cpu, on Windows I had 11000. The cpu was throttling to 1500Mhz and lower for no reason. Switching a BIOS setting of power management to "ultra performance" got me to twice the score.

Eventually using throttled from github for various Lenovo and Dell models and thermald I was able to get to twice that again, still a fifth less than on Windows. Also the repo has potential of security concerns due to how it works, also potential to just stop working due to them later.

Mainly I'm posting this to just say that there is zero legitimate technical reason why this should happen, it works on Windows and on Dell tampered Ubuntu images. The hw is fine but for some reason someone somewhere decided to artificially limit the hw for whatever reason.

Right now I am still indecided if I should write off the several hours I've spent on this and return the machine to play the dice with some other model.

Edit 5.4.: it turns out I was not using the throttled package correctly and now have roughly equivalent performace in Linux as in Windows up from the 4/5 or so after all the other workarounds. All of the points still apply though. I also heartily recommend s-tui as a nice utility for cpu monitoring and stress test.

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