Been using 24.10 Budgie and everything seems to work great. The fingerprint sensor works but of course Budgie doesn’t support it yet for login.
ok that was easy! You can get fingerprint login working with sudo pam-auth-update --enable fprintd then a restart.
Heh heh. User error, sort of. Although I have kubuntu installed, after the upgrade my login defaulted to gnome, which I never use. So nothing was working as expected. On restart I noticed a little, almost invisible notice that I was going to load gnome. I was able to switch it to KDE and now everything works as expected.
Update : setting automatic dim screen when idle 100% through terminal did the job for me. From what I found out is for some reason whenever any video is playing and during video if the laptop stays idle like no mouse movements or keystrokes sometimes the idle function enable and tries to dim the screen when video is playing which causes some issues followed by laptop being super laggy
terminal command :
gsettings set org.gnome.settings-daemon.plugins.power idle-brightness 100
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There is one more method add amdgpu.dcdebugmask=0x10 to the kernel parameters. This disables PSR (Panel Self-Refresh).
I’ve been running Kubuntu 24.10 on my AMD Ryzen 7 7840U, and no issues so far. YouTube seems fine for me in FireFox ? Maybe I’m not testing the same way ?
The only non-default setting is a carry over from 24.04 LTS to stop intermittent black-screen boots, by booting in text mode, by removing “quiet splash” from GRUB_CMDLINE_LINUX_DEFAULT in /etc/default/grub. I believe this is some race in the boot process, but can’t locate the forum post or bug URL 
amd or intel because this issue is for amd only and if you have amd motherboard then maybe your os didn’t have this issue but several of the people using various linux distros have encountered it. So it’s good that you didn’t have to face this issue.
Sorry, yes, AMD Ryzen 7 7840U
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