[Stable Update] 2020-09-08 - Kernels, Mesa, Browsers, KDE Apps 20.08.1, Systemd, LibreOffice 7.0.1, Deepin

Announcements Stable Updates
,
2

Known issues and solutions

This is a wiki post; please edit as necessary.
Please, consider subscribing to the Stable-Staging Updates Announcements RSS feed

nvidia-450xx-utils and nvidia-440xx-utils are in conflict

Please click the ► at the beginning of this line to view this solution

  • If you get the following error message:

    resolving dependencies...
looking for conflicting packages...
:: nvidia-450xx-utils and nvidia-440xx-utils are in conflict (nvidia-libgl). Remove nvidia-440xx-utils? [y/N] y
error: failed to prepare transaction (could not satisfy dependencies)
:: unable to satisfy dependency 'nvidia-440xx-utils=440.100' required by linux54-nvidia-440xx
:: removing nvidia-440xx-utils breaks dependency 'nvidia-440xx-utils=440.100' required by linux58-nvidia-440xx

Warning: do not reboot until this procedure tells you to starting from the next step!

  • Please note the exact nVidia driver you have running by executing:

    mhwd --listinstalled

  • Please note the kernel(s) you’ve got installed and remove anything 440-related, including CUDA by executing:

    pamac remove nvidia-440xx-utils linuxZZ-nvidia-440xx cuda nvtop

    where ZZ is/are the kernel version(s) you’re running.

  • Repeat for all the kernel versions you have

    How do I know which kernel versions I have?
    • execute ls /boot/linux*
    • any nulber after linux before the - (minus sign) are the kernel(s) you have installed

  • If you would have any other old nVidia drivers that you don’t need any more because your card is supported by the 450 series get rid of them as well.

  • now install the same family of 450 driver you had for the 440 driver, by executing:

    mhwd --install pci Your450Family

    where Your450Family is obviously one of video-hybrid-amd-nvidia-440xx-prime OR video-nvidia-440xx that you noted above

  • And finally:

    sudo reboot

If this would not have solved your issue, please open a new issue here and state that you followed this procedure already.

PAM and PAMBASE got updated, which might prevent you from login

Due to updates from pambase and pam you might take care about any .pacnew files in /etc/pam.d as for example pam_tally, pam_tally2 and pam_cracklib got deprecated. Read in the ArchWiki about managing those files.

Typical issue:

For recovery, it is enough to boot with kernel option “systemd.unit=rescue.target”, then proceed into /etc/pam.d and merge “system-auth” and “system-auth.pacnew”

Older Issues

System takes a long time to boot

If you’ve got errors like Failed to start Network Manager Wait Online. you can try removing systemd from passwd and group in /etc/nsswitch.conf as described here
Update: If you can see the line
dbus-daemon[1453]: [system] Connection has not authenticated soon enough, closing it (auth_timeout=30000ms, elapsed: 45146ms)
in in your dbus log ( journalctl -b -u dbus ), the new/better workaround is to switch cups from service to socket as described here:
systemctl disable org.cups.cupsd.service
systemctl enable org.cups.cupsd.socket

I think I’ve some font problems

With the update of fontconfig some major rules how fonts get applied changed. Make sure that your system has ttf-dejavu installed. A more in depth explanation can be found here.

Gnome-shell-extension-pop-shell is currently incompatible with wayland

… and causes the system to freeze when the first window is tiled and can render it unbootable. Solution is a hard reset and disabling either pop shell or wayland. If the system becomes unbootable, use a live USB to edit /etc/gdm/custom.conf to disable wayland and reboot.

6 Likes