Comment 12 for bug 2059847

> [amirsalarsafaei] I downgraded my mutter to 45.0-3ubuntu3 but the issues persists

Mentioning just in case:

You should downgrade all the packages built from mutter's source that you have installed, including libmutter-13-0, mutter-common, mutter-common-bin etc. (Or at least I don't know which one really matters.)

And then you need to log out of your graphical session and log back in, otherwise the previous mutter keeps running.

I'm pointing these out because this suspected mutter change is the only relevant that has a reasonable chance of causing the issues, and multiple people have reported that downgrading fixed the issue for them, yet you report that it didn't for you. At this point we have to consider that you might have made a mistake during downgrading, rather than the bug being somewhere else.

> how to downgrade my mutter to specific version without apt?

I'd download these older packages from packages.ubuntu.com (as you presumably already did with mutter), install them with `dpkg -i`, and put them on "hold" (something like: `echo "mutter hold" | sudo dpkg --set-selections`, and repeat for the other packages).

> an interesting thing is that the gnome-console is fine but other vte based terminals have severe lag.

gnome-console uses gtk4 (and in turn the gtk4 variant of vte), others use gtk3 (and in turn the gtk3 variant of vte). (I'm just stating this as a fact. Don't ask how it triggers the bug to manifest with one but not with the other, I don't know.)