nvidia-dkms isn’t patched for kernel 5.12 yet, because we generally do not patch the dkms.
So please use the normal extra-module.
I’m seeing this error from KIO 5.80.0 and above:
/usr/bin/plasma_session: symbol lookup error: /usr/lib/libKF5KIOCore.so.5: undefined symbol: _ZN4KJob14percentChangedEPS_mNS_14QPrivateSignalE
SDDM loads to a default theme that shows another error with libKF5KIOCore.so.5 (in the
kio package), then KDE Plasma doesn’t load at all, with the error above.
Reverting to KIO 5.79.0-1 resolves the issue for me, but I couldn’t find anything after searching the internet that points to the cause so this one has me a bit confused.
The version of the gtk3 package in this update breaks the Mailspring-Libre package. See AUR comments here: .aur.archlinux.org/packages/mailspring-libre
A new version is up in the Arch repos which fixes the issue caused (gtk3-1:3.24.27-4). Would be great if we could get that pulled down in the next testing update.
Just pushed it to the testing branch.
video-modesetting displays different than video-linux
compiz was rebuilt and rolled out about the time you posted. you should be able to update to
0.9.14.1-4 and it should be working for you