Ubuntu – Zoom not launching on Ubuntu 16.04

If issue appears only on specific video files, then the file is corrupted fixing it might not be possible and or you would have to buy software which fixes corrupted video files, you can confirm corruption by trying to watch video which had issues using different media player, if the issue appears again on different media player, then the file is corrupted.

Also if you pirated the videos, make sure that their downloads are completed, videos which are still being downloaded to the hard drive can be played only partially untill download is at least 90% complete.

I don't have specific experience with ClearLinux, but it looks like you can:

# It's best to first compile their gcc (https://github.com/clearlinux-pkgs/gcc)
mkdir ~/patched_source
git clone https://github.com/clearlinux-pkgs/linux ~/clearlinux_patches
cd ~/clearlinux_patches
./scripts/develop.sh linux.spec ~/patched_source

That should download the upstream kernel to a folder below ~/patched_source (it will tell you the exact name) and apply ClearLinux's own patches and default config.

You can then proceed to compile the kernel as usual, for instance:

cd that_folder
CC=/the/clearlinux/gcc make -j4 bindeb-pkg
# This will take a while and create a few linux-xxx.deb files in the parent directory
sudo dpkg -i ../*.deb   # Or just the latest

Disabling the CONFIG_RETPOLINE mitigation makes it possible to compile with Ubuntu's gcc (at a cost, obviously).

The usual warnings apply: try in a VM first, secure boot can be tricky, there might be some Ubuntu-specific patches missing, ...

If you feel adventurous you can also add some of their own cmdline options to /etc/default/grub (like the ones in lines 8-15)