I've checked, and the problem is still there. The update: ~ $ sudo apt upgrade Reading package lists... Done Building dependency tree Reading state information... Done Calculating upgrade... Done The following packages were automatically installed and are no longer required: adobe-flashplugin libllvm11 libllvm11:i386 Use 'sudo apt autoremove' to remove them. The following NEW packages will be installed libllvm12 libllvm12:i386 linux-headers-5.4.0-94 linux-headers-5.4.0-94-generic linux-image-5.4.0-94-generic linux-modules-5.4.0-94-generic linux-modules-extra-5.4.0-94-generic The following packages will be upgraded: libegl-mesa0 libexiv2-27 libgbm1 libgl1-mesa-dri:i386 libgl1-mesa-dri libgl1-mesa-glx:i386 libgl1-mesa-glx libglapi-mesa:i386 libglapi-mesa libglx-mesa0 libglx-mesa0:i386 liblightdm-gobject-1-0 libxatracker2 lightdm linux-generic linux-headers-generic linux-image-generic linux-libc-dev mesa-va-drivers mesa-vdpau-drivers mesa-vulkan-drivers mesa-vulkan-drivers:i386 xserver-common xserver-xephyr xserver-xorg-core xserver-xorg-legacy xwayland 27 to upgrade, 7 to newly install, 0 to remove and 0 not to upgrade. 10 standard security updates Need to get 160 MB of archives. After this operation, 634 MB of additional disk space will be used. Do you want to continue? [Y/n] Get:1 http://mirror.freethought-internet.co.uk/ubuntu focal-updates/universe amd64 lightdm amd64 1.30.0-0ubuntu4~20.04.2 [144 kB] Get:2 http://mirror.freethought-internet.co.uk/ubuntu focal-updates/main amd64 libegl-mesa0 amd64 21.0.3-0ubuntu0.3~20.04.5 [96.2 kB] Get:3 http://mirror.freethought-internet.co.uk/ubuntu focal-updates/main amd64 libgbm1 amd64 21.0.3-0ubuntu0.3~20.04.5 [28.7 kB] Get:4 http://mirror.freethought-internet.co.uk/ubuntu focal-updates/main amd64 xserver-common all 2:1.20.13-1ubuntu1~20.04.2 [26.5 kB] Get:5 http://mirror.freethought-internet.co.uk/ubuntu focal-updates/main amd64 xserver-xorg-legacy amd64 2:1.20.13-1ubuntu1~20.04.2 [32.2 kB] Get:6 http://mirror.freethought-internet.co.uk/ubuntu focal-updates/main amd64 xserver-xorg-core amd64 2:1.20.13-1ubuntu1~20.04.2 [1,339 kB] Get:7 http://mirror.freethought-internet.co.uk/ubuntu focal-updates/main amd64 libllvm12 amd64 1:12.0.0-3ubuntu1~20.04.4 [18.8 MB] Get:8 http://mirror.freethought-internet.co.uk/ubuntu focal-updates/main amd64 libgl1-mesa-dri amd64 21.0.3-0ubuntu0.3~20.04.5 [10.5 MB] Get:9 http://mirror.freethought-internet.co.uk/ubuntu focal-updates/main i386 libgl1-mesa-dri i386 21.0.3-0ubuntu0.3~20.04.5 [10.9 MB] Get:10 http://mirror.freethought-internet.co.uk/ubuntu focal-updates/main i386 libllvm12 i386 1:12.0.0-3ubuntu1~20.04.4 [19.2 MB] Get:11 http://mirror.freethought-internet.co.uk/ubuntu focal-updates/main amd64 libglx-mesa0 amd64 21.0.3-0ubuntu0.3~20.04.5 [138 kB] Get:12 http://mirror.freethought-internet.co.uk/ubuntu focal-updates/main i386 libglx-mesa0 i386 21.0.3-0ubuntu0.3~20.04.5 [146 kB] Get:13 http://mirror.freethought-internet.co.uk/ubuntu focal-updates/main i386 libglapi-mesa i386 21.0.3-0ubuntu0.3~20.04.5 [26.9 kB] Get:14 http://mirror.freethought-internet.co.uk/ubuntu focal-updates/main amd64 libglapi-mesa amd64 21.0.3-0ubuntu0.3~20.04.5 [26.8 kB] Get:15 http://mirror.freethought-internet.co.uk/ubuntu focal-updates/main amd64 libexiv2-27 amd64 0.27.2-8ubuntu2.7 [792 kB] Get:16 http://mirror.freethought-internet.co.uk/ubuntu focal-updates/main i386 libgl1-mesa-glx i386 21.0.3-0ubuntu0.3~20.04.5 [5,532 B] Get:17 http://mirror.freethought-internet.co.uk/ubuntu focal-updates/main amd64 libgl1-mesa-glx amd64 21.0.3-0ubuntu0.3~20.04.5 [5,532 B] Get:18 http://mirror.freethought-internet.co.uk/ubuntu focal-updates/universe amd64 liblightdm-gobject-1-0 amd64 1.30.0-0ubuntu4~20.04.2 [40.0 kB] Get:19 http://mirror.freethought-internet.co.uk/ubuntu focal-updates/main amd64 libxatracker2 amd64 21.0.3-0ubuntu0.3~20.04.5 [1,716 kB] Get:20 http://mirror.freethought-internet.co.uk/ubuntu focal-updates/main amd64 linux-modules-5.4.0-94-generic amd64 5.4.0-94.106 [14.8 MB] Get:21 http://mirror.freethought-internet.co.uk/ubuntu focal-updates/main amd64 linux-image-5.4.0-94-generic amd64 5.4.0-94.106 [10.5 MB] Get:22 http://mirror.freethought-internet.co.uk/ubuntu focal-updates/main amd64 linux-modules-extra-5.4.0-94-generic amd64 5.4.0-94.106 [39.4 MB] Get:23 http://mirror.freethought-internet.co.uk/ubuntu focal-updates/main amd64 linux-generic amd64 5.4.0.94.98 [1,896 B] Get:24 http://mirror.freethought-internet.co.uk/ubuntu focal-updates/main amd64 linux-image-generic amd64 5.4.0.94.98 [2,604 B] Get:25 http://mirror.freethought-internet.co.uk/ubuntu focal-updates/main amd64 linux-headers-5.4.0-94 all 5.4.0-94.106 [11.0 MB] Get:26 http://mirror.freethought-internet.co.uk/ubuntu focal-updates/main amd64 linux-headers-5.4.0-94-generic amd64 5.4.0-94.106 [1,395 kB] Get:27 http://mirror.freethought-internet.co.uk/ubuntu focal-updates/main amd64 linux-headers-generic amd64 5.4.0.94.98 [2,472 B] Get:28 http://mirror.freethought-internet.co.uk/ubuntu focal-updates/main amd64 linux-libc-dev amd64 5.4.0-94.106 [1,114 kB] Get:29 http://mirror.freethought-internet.co.uk/ubuntu focal-updates/universe amd64 mesa-va-drivers amd64 21.0.3-0ubuntu0.3~20.04.5 [2,825 kB] Get:30 http://mirror.freethought-internet.co.uk/ubuntu focal-updates/main amd64 mesa-vdpau-drivers amd64 21.0.3-0ubuntu0.3~20.04.5 [2,944 kB] Get:31 http://mirror.freethought-internet.co.uk/ubuntu focal-updates/main i386 mesa-vulkan-drivers i386 21.0.3-0ubuntu0.3~20.04.5 [5,060 kB] Get:32 http://mirror.freethought-internet.co.uk/ubuntu focal-updates/main amd64 mesa-vulkan-drivers amd64 21.0.3-0ubuntu0.3~20.04.5 [4,731 kB] Get:33 http://mirror.freethought-internet.co.uk/ubuntu focal-updates/main amd64 xserver-xephyr amd64 2:1.20.13-1ubuntu1~20.04.2 [915 kB] Get:34 http://mirror.freethought-internet.co.uk/ubuntu focal-updates/main amd64 xwayland amd64 2:1.20.13-1ubuntu1~20.04.2 [868 kB] Fetched 160 MB in 3min 31s (757 kB/s) Extract templates from packages: 100% Preconfiguring packages ... setting xserver-xorg-legacy/xwrapper/allowed_users from configuration file (Reading database ... 338753 files and directories currently installed.) Preparing to unpack .../00-lightdm_1.30.0-0ubuntu4~20.04.2_amd64.deb ... Unpacking lightdm (1.30.0-0ubuntu4~20.04.2) over (1.30.0-0ubuntu4~20.04.1) ... Preparing to unpack .../01-libegl-mesa0_21.0.3-0ubuntu0.3~20.04.5_amd64.deb ... Unpacking libegl-mesa0:amd64 (21.0.3-0ubuntu0.3~20.04.5) over (20.2.6-0ubuntu0.20.04.1) ... Preparing to unpack .../02-libgbm1_21.0.3-0ubuntu0.3~20.04.5_amd64.deb ... Unpacking libgbm1:amd64 (21.0.3-0ubuntu0.3~20.04.5) over (20.2.6-0ubuntu0.20.04.1) ... Preparing to unpack .../03-xserver-common_2%3a1.20.13-1ubuntu1~20.04.2_all.deb ... Unpacking xserver-common (2:1.20.13-1ubuntu1~20.04.2) over (2:1.20.9-2ubuntu1.2~20.04.2) ... Preparing to unpack .../04-xserver-xorg-legacy_2%3a1.20.13-1ubuntu1~20.04.2_amd64.deb ... Unpacking xserver-xorg-legacy (2:1.20.13-1ubuntu1~20.04.2) over (2:1.20.9-2ubuntu1.2~20.04.2) ... Preparing to unpack .../05-xserver-xorg-core_2%3a1.20.13-1ubuntu1~20.04.2_amd64.deb ... Unpacking xserver-xorg-core (2:1.20.13-1ubuntu1~20.04.2) over (2:1.20.9-2ubuntu1.2~20.04.2) ... Selecting previously unselected package libllvm12:amd64. Preparing to unpack .../06-libllvm12_1%3a12.0.0-3ubuntu1~20.04.4_amd64.deb ... Unpacking libllvm12:amd64 (1:12.0.0-3ubuntu1~20.04.4) ... Preparing to unpack .../07-libgl1-mesa-dri_21.0.3-0ubuntu0.3~20.04.5_i386.deb ... De-configuring libgl1-mesa-dri:amd64 (20.2.6-0ubuntu0.20.04.1) ... Unpacking libgl1-mesa-dri:i386 (21.0.3-0ubuntu0.3~20.04.5) over (20.2.6-0ubuntu0.20.04.1) ... Preparing to unpack .../08-libgl1-mesa-dri_21.0.3-0ubuntu0.3~20.04.5_amd64.deb ... Unpacking libgl1-mesa-dri:amd64 (21.0.3-0ubuntu0.3~20.04.5) over (20.2.6-0ubuntu0.20.04.1) ... Selecting previously unselected package libllvm12:i386. Preparing to unpack .../09-libllvm12_1%3a12.0.0-3ubuntu1~20.04.4_i386.deb ... Unpacking libllvm12:i386 (1:12.0.0-3ubuntu1~20.04.4) ... Preparing to unpack .../10-libglx-mesa0_21.0.3-0ubuntu0.3~20.04.5_i386.deb ... De-configuring libglx-mesa0:amd64 (20.2.6-0ubuntu0.20.04.1) ... Unpacking libglx-mesa0:i386 (21.0.3-0ubuntu0.3~20.04.5) over (20.2.6-0ubuntu0.20.04.1) ... Preparing to unpack .../11-libglx-mesa0_21.0.3-0ubuntu0.3~20.04.5_amd64.deb ... Unpacking libglx-mesa0:amd64 (21.0.3-0ubuntu0.3~20.04.5) over (20.2.6-0ubuntu0.20.04.1) ... Preparing to unpack .../12-libglapi-mesa_21.0.3-0ubuntu0.3~20.04.5_amd64.deb ... De-configuring libglapi-mesa:i386 (20.2.6-0ubuntu0.20.04.1) ... Unpacking libglapi-mesa:amd64 (21.0.3-0ubuntu0.3~20.04.5) over (20.2.6-0ubuntu0.20.04.1) ... Preparing to unpack .../13-libglapi-mesa_21.0.3-0ubuntu0.3~20.04.5_i386.deb ... Unpacking libglapi-mesa:i386 (21.0.3-0ubuntu0.3~20.04.5) over (20.2.6-0ubuntu0.20.04.1) ... Preparing to unpack .../14-libexiv2-27_0.27.2-8ubuntu2.7_amd64.deb ... Unpacking libexiv2-27:amd64 (0.27.2-8ubuntu2.7) over (0.27.2-8ubuntu2.6) ... Preparing to unpack .../15-libgl1-mesa-glx_21.0.3-0ubuntu0.3~20.04.5_amd64.deb ... De-configuring libgl1-mesa-glx:i386 (20.2.6-0ubuntu0.20.04.1) ... Unpacking libgl1-mesa-glx:amd64 (21.0.3-0ubuntu0.3~20.04.5) over (20.2.6-0ubuntu0.20.04.1) ... Preparing to unpack .../16-libgl1-mesa-glx_21.0.3-0ubuntu0.3~20.04.5_i386.deb ... Unpacking libgl1-mesa-glx:i386 (21.0.3-0ubuntu0.3~20.04.5) over (20.2.6-0ubuntu0.20.04.1) ... Preparing to unpack .../17-liblightdm-gobject-1-0_1.30.0-0ubuntu4~20.04.2_amd64.deb ... Unpacking liblightdm-gobject-1-0:amd64 (1.30.0-0ubuntu4~20.04.2) over (1.30.0-0ubuntu4~20.04.1) ... Preparing to unpack .../18-libxatracker2_21.0.3-0ubuntu0.3~20.04.5_amd64.deb ... Unpacking libxatracker2:amd64 (21.0.3-0ubuntu0.3~20.04.5) over (20.2.6-0ubuntu0.20.04.1) ... Selecting previously unselected package linux-modules-5.4.0-94-generic. Preparing to unpack .../19-linux-modules-5.4.0-94-generic_5.4.0-94.106_amd64.deb ... Unpacking linux-modules-5.4.0-94-generic (5.4.0-94.106) ... Selecting previously unselected package linux-image-5.4.0-94-generic. 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Unpacking linux-headers-5.4.0-94-generic (5.4.0-94.106) ... Preparing to unpack .../26-linux-headers-generic_5.4.0.94.98_amd64.deb ... Unpacking linux-headers-generic (5.4.0.94.98) over (5.4.0.92.96) ... Preparing to unpack .../27-linux-libc-dev_5.4.0-94.106_amd64.deb ... Unpacking linux-libc-dev:amd64 (5.4.0-94.106) over (5.4.0-92.103) ... Preparing to unpack .../28-mesa-va-drivers_21.0.3-0ubuntu0.3~20.04.5_amd64.deb ... Unpacking mesa-va-drivers:amd64 (21.0.3-0ubuntu0.3~20.04.5) over (20.2.6-0ubuntu0.20.04.1) ... Preparing to unpack .../29-mesa-vdpau-drivers_21.0.3-0ubuntu0.3~20.04.5_amd64.deb ... Unpacking mesa-vdpau-drivers:amd64 (21.0.3-0ubuntu0.3~20.04.5) over (20.2.6-0ubuntu0.20.04.1) ... Preparing to unpack .../30-mesa-vulkan-drivers_21.0.3-0ubuntu0.3~20.04.5_i386.deb ... De-configuring mesa-vulkan-drivers:amd64 (20.2.6-0ubuntu0.20.04.1) ... Unpacking mesa-vulkan-drivers:i386 (21.0.3-0ubuntu0.3~20.04.5) over (20.2.6-0ubuntu0.20.04.1) ... Preparing to unpack .../31-mesa-vulkan-drivers_21.0.3-0ubuntu0.3~20.04.5_amd64.deb ... Unpacking mesa-vulkan-drivers:amd64 (21.0.3-0ubuntu0.3~20.04.5) over (20.2.6-0ubuntu0.20.04.1) ... Preparing to unpack .../32-xserver-xephyr_2%3a1.20.13-1ubuntu1~20.04.2_amd64.deb ... Unpacking xserver-xephyr (2:1.20.13-1ubuntu1~20.04.2) over (2:1.20.9-2ubuntu1.2~20.04.2) ... Preparing to unpack .../33-xwayland_2%3a1.20.13-1ubuntu1~20.04.2_amd64.deb ... Unpacking xwayland (2:1.20.13-1ubuntu1~20.04.2) over (2:1.20.9-2ubuntu1.2~20.04.2) ... Setting up libgbm1:amd64 (21.0.3-0ubuntu0.3~20.04.5) ... Setting up linux-libc-dev:amd64 (5.4.0-94.106) ... Setting up libexiv2-27:amd64 (0.27.2-8ubuntu2.7) ... Setting up libllvm12:amd64 (1:12.0.0-3ubuntu1~20.04.4) ... Setting up libllvm12:i386 (1:12.0.0-3ubuntu1~20.04.4) ... Setting up libglapi-mesa:amd64 (21.0.3-0ubuntu0.3~20.04.5) ... Setting up libglapi-mesa:i386 (21.0.3-0ubuntu0.3~20.04.5) ... Setting up liblightdm-gobject-1-0:amd64 (1.30.0-0ubuntu4~20.04.2) ... Setting up linux-headers-5.4.0-94 (5.4.0-94.106) ... Setting up xserver-common (2:1.20.13-1ubuntu1~20.04.2) ... Setting up mesa-va-drivers:amd64 (21.0.3-0ubuntu0.3~20.04.5) ... Setting up xwayland (2:1.20.13-1ubuntu1~20.04.2) ... Setting up xserver-xorg-legacy (2:1.20.13-1ubuntu1~20.04.2) ... setting xserver-xorg-legacy/xwrapper/allowed_users from configuration file Setting up linux-modules-5.4.0-94-generic (5.4.0-94.106) ... Setting up lightdm (1.30.0-0ubuntu4~20.04.2) ... Installing new version of config file /etc/pam.d/lightdm ... Installing new version of config file /etc/pam.d/lightdm-greeter ... Setting up mesa-vulkan-drivers:amd64 (21.0.3-0ubuntu0.3~20.04.5) ... Setting up mesa-vulkan-drivers:i386 (21.0.3-0ubuntu0.3~20.04.5) ... Setting up mesa-vdpau-drivers:amd64 (21.0.3-0ubuntu0.3~20.04.5) ... Setting up libgl1-mesa-dri:amd64 (21.0.3-0ubuntu0.3~20.04.5) ... Setting up libgl1-mesa-dri:i386 (21.0.3-0ubuntu0.3~20.04.5) ... Setting up xserver-xorg-core (2:1.20.13-1ubuntu1~20.04.2) ... Setting up libxatracker2:amd64 (21.0.3-0ubuntu0.3~20.04.5) ... Setting up linux-headers-5.4.0-94-generic (5.4.0-94.106) ... /etc/kernel/header_postinst.d/dkms: * dkms: running auto installation service for kernel 5.4.0-94-generic ...done. Setting up libegl-mesa0:amd64 (21.0.3-0ubuntu0.3~20.04.5) ... Setting up xserver-xephyr (2:1.20.13-1ubuntu1~20.04.2) ... Setting up linux-image-5.4.0-94-generic (5.4.0-94.106) ... I: /boot/vmlinuz.old is now a symlink to vmlinuz-5.4.0-92-generic I: /boot/initrd.img.old is now a symlink to initrd.img-5.4.0-92-generic I: /boot/vmlinuz is now a symlink to vmlinuz-5.4.0-94-generic I: /boot/initrd.img is now a symlink to initrd.img-5.4.0-94-generic Setting up linux-modules-extra-5.4.0-94-generic (5.4.0-94.106) ... Setting up linux-image-generic (5.4.0.94.98) ... Setting up libglx-mesa0:amd64 (21.0.3-0ubuntu0.3~20.04.5) ... Setting up libglx-mesa0:i386 (21.0.3-0ubuntu0.3~20.04.5) ... Setting up linux-headers-generic (5.4.0.94.98) ... Setting up libgl1-mesa-glx:amd64 (21.0.3-0ubuntu0.3~20.04.5) ... Setting up libgl1-mesa-glx:i386 (21.0.3-0ubuntu0.3~20.04.5) ... Setting up linux-generic (5.4.0.94.98) ... Processing triggers for systemd (245.4-4ubuntu3.14) ... Processing triggers for man-db (2.9.1-1) ... Processing triggers for dbus (1.12.16-2ubuntu2.1) ... Processing triggers for libc-bin (2.31-0ubuntu9.2) ... Processing triggers for linux-image-5.4.0-94-generic (5.4.0-94.106) ... /etc/kernel/postinst.d/dkms: * dkms: running auto installation service for kernel 5.4.0-94-generic ...done. /etc/kernel/postinst.d/initramfs-tools: update-initramfs: Generating /boot/initrd.img-5.4.0-94-generic /etc/kernel/postinst.d/zz-update-grub: Sourcing file `/etc/default/grub' Sourcing file `/etc/default/grub.d/50_linuxmint.cfg' Sourcing file `/etc/default/grub.d/init-select.cfg' Generating grub configuration file ... Found linux image: /boot/vmlinuz-5.4.0-94-generic Found initrd image: /boot/initrd.img-5.4.0-94-generic Found linux image: /boot/vmlinuz-5.4.0-92-generic Found initrd image: /boot/initrd.img-5.4.0-92-generic Found linux image: /boot/vmlinuz-5.4.0-91-generic Found initrd image: /boot/initrd.img-5.4.0-91-generic done The result: same as before.