Comment by Avamander

9 hours ago

> Things I learned to look out for:

Don't buy any recent Intels. Some Intel ThinkPads have accelerometers built-in just to throttle your PC to oblivion when it moves. Basically unusable in any moving vehicle such as a train. It's basically anti-portability baked-in.

When it doesn't throttle, it just has abysmal battery life compared to AMD Ryzen ThinkPads of the same generation. Both lose horribly to Apple's ARM chips though.

They also tend to have soldered WiFi modules, making it impossible to upgrade later when newer and better WiFi iterations come out. If that had been the case with a few of the older models I still have, they would be unusable at this point.

There are plenty of firmware bugs as well. For example plenty of Lenovo (especially Intel as far as I've seen) models have stuttery and freezing touchpads. Though the touchpads tend to be horrible anyways.

I'd say the older (5+ years old) generations might have had slightly better driver support or they're finally fixed at this point. But there's nothing I'd spend my money on if I can just as well install Asahi on an M-series laptop.

Maybe what you are noticing is the "laptop on lap" detection? Check the bios, there was a "cool when on lap detected" mode on mine. Turn that off and re-test.

> there's nothing I'd spend my money on if I can just as well install Asahi on an M-series laptop.

But such laptops don't work 100% with Asahi. Speakers and mic, external displays, fingerprint reader, suspend are the sore points I've read about, and shorter battery life compared to when they run Apple's SO.

In my experience Intel and AMD Thinkpads of that era are about the same for battery life but Intel always needs some kernel parameters set. Where I notice the biggest difference is Intel's integrated graphics gets you better battery life over anything AMD if your GPU needs are modest enough to be handled by Intel's integrated graphics

ThinkPads used to have accelerometers to protect the hard drives, so if you dropped the machine or treated it roughly, it could park the drive, protecting it from data loss.

People used to write Linux utilities that read these accelerometers, allowing for example to switch virtual desktops by physically smacking the machine on either side.

> Some Intel ThinkPads have accelerometers built-in just to throttle your PC to oblivion when it moves

Wtf? That sounds crazy, any sources?

  • This used to be a feature to protect spinning hard drives. Why this would exist today and why it would throttle anything is bizarre.

  • They don't want you to burn your testicles when keeping it in your lap.

    https://download.lenovo.com/pccbbs/pubs/x1e_p1_gen5/html/htm...

    > The Cool and Quiet on lap feature helps cool down your computer when it becomes hot. Any extended contact with your body, even through clothing, could cause discomfort. If you prefer using your computer on the lap, it is recommended that you enable the Cool and Quiet on lap feature in UEFI BIOS:

    (it can be disabled on this laptop)

    more: https://askubuntu.com/questions/1416567/disable-lap-mode-on-...

    • Honestly, I wasn't to say this is ridiculous but I've got a i7 13" laptop which I bought to do practically everything (personal coding projects, a bit of gaming, video editing, 3d modeling etc). I do find the heat of it is quite uncomfortable after a short period of time on my lap. I was thinking about getting a M series MacBook for messing around on the couch and building a desktop for many of those other tasks.

      My work MacBook Pro on the other hand could do with the opposite some times. Burn a bit of battery to heat up the aluminium case please!