Is that a hardware or software issue? I.e. is it caused by the windows driver for these laptops' graphic units?
Does HEVC work with the Linux drivers on these machines?
this post was submitted on 21 Nov 2025
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Well, what the world really needs are laptops with built-in HVAC support!
Can't current CPUs decode it in real time?
Yeah, because of the ASICs built into them to enable that decoding.
Without that, a 4K HEVC video is in upwards of 100+ billion operations/s to decode on the CPU. Which limits you to high end CPUs getting capped out on something you essentially get for "free" otherwise
I meant without dedicated circuits, obviously. Can't it be parallelised? Many cpus have a lot of relatively idle cores at a given time...
I remember that my 486 had trouble with mp3 files, but soon enough, I got a new machine with many more spare cycles.
That is parallelized... I didn't make mention of threading being the concern here.
The 100+ billion operations per second isn't exactly easy.
4k 60fps = 498 million pixels per second
Each pixel takes a couple hundred logical operations with HEVC.
A modern high end 4GHz, 8 physical core CPU at 4 instructions per cycle, at maximum capacity, can handle 128 billion operations per second.
You probably wouldn't even get your realtime framerate in this scenario.
So, yeah, HP and Dell are fucked - by what you may ask? Why, AI of course, because it's hiked memory prices so far up it's eating up their profit margins. They might be doomed.
Anyone has a list of the Dell laptops? I have a Latitude 7350 Detachable with an intel core ultra 164U. I think I might be affected...but then again, I have it running KDE neon, so not sure if this is disabled at hardware level or if it will work on a different OS.