media-driver VS apt-fast

You might need to install the non-free intel media driver: https://github.com/intel/media-driver

Intel had VP9 decode since Kaby Lake (7th gen); original Skylake (6th gen) could not handle it (see here).

I've heard intel-media-driver was the way to go for supported hardware, but I also heard that it could decode slower than libva-intel-driver (like #925), and that Intel doesn't officially support some kind of decode feature in intel-media-driver, but it's implemented in libva-intel-driver.

I reproduced the issue on my end and opened a ticket to let intel devs know. https://github.com/intel/media-driver/issues/1628

I can see 22.6.6 was released in December ( Releases · intel/media-driver (github.com) ), but I'm having troubles getting it installed.

You should be able to choose FFmpeg VAAPI encoder, though it is suggested that kernel 6.2 is needed for this to actually work. I can confirm that it's broken with my A770, while I can choose the device, encoder is failing. No such problem with my Rapter Lake iGPU.

On GitHub there are similar problems reported: https://github.com/intel/media-driver/issues/1282

Source: https://github.com/intel/media-driver/blob/master/docs/media_features.md

FYI: I/O is indeed a limiting factor but apt is not very efficient and updates can get a lot faster with wrappers like apt-fast which download and process in parallel.

If picking another mirror doesn't speed it up, I can highly recommend apt-fast.

Use apt-fast

just as a tip: if your distro uses apt just install apt-fast (its a wrapper script for apt/ apt-get which adds multithreading, etc)

apt-fast added to improve download speed and reliability.

You can also increase the download speed by downloading multiple packages at the same time. apt does not have support for this built-in but there is a wrapper called apt-fast that does this: https://github.com/ilikenwf/apt-fast