Merci pour vos messages,
Si j'ai bien compris, il est plus sage de rester sur le noyau 5.4.0.59 (qui fonctionne bien ici!):/
et de modifier (déjà fait) le grub pour un démarrage sur ce noyau, en attendant une éventuelle prise en charge par canonical?
c'est bien ma veine, moi qui dit aux copains les avantages de linux.....😉
je viens de faire aussi:
dpkg -l | awk '/^rc/{print $2}' | xargs -r sudo dpkg -P
ii binutils-x86-64-linux-gnu 2.34-6ubuntu1 amd64 GNU binary utilities, for x86-64-linux-gnu target
ii linux-base 4.5ubuntu3.1 all Linux image base package
ii linux-firmware 1.187.7 all Firmware for Linux kernel drivers
ii linux-generic-hwe-20.04 5.8.0.38.43~20.04.23 amd64 Complete Generic Linux kernel and headers
ii linux-headers-5.4.0-59 5.4.0-59.65 all Header files related to Linux kernel version 5.4.0
ii linux-headers-5.4.0-59-generic 5.4.0-59.65 amd64 Linux kernel headers for version 5.4.0 on 64 bit x86 SMP
ii linux-headers-5.8.0-34-generic 5.8.0-34.37~20.04.2 amd64 Linux kernel headers for version 5.8.0 on 64 bit x86 SMP
ii linux-headers-5.8.0-36-generic 5.8.0-36.40~20.04.1 amd64 Linux kernel headers for version 5.8.0 on 64 bit x86 SMP
ii linux-headers-5.8.0-38-generic 5.8.0-38.43~20.04.1 amd64 Linux kernel headers for version 5.8.0 on 64 bit x86 SMP
ii linux-headers-generic-hwe-20.04 5.8.0.38.43~20.04.23 amd64 Generic Linux kernel headers
ii linux-hwe-5.8-headers-5.8.0-34 5.8.0-34.37~20.04.2 all Header files related to Linux kernel version 5.8.0
ii linux-hwe-5.8-headers-5.8.0-36 5.8.0-36.40~20.04.1 all Header files related to Linux kernel version 5.8.0
ii linux-hwe-5.8-headers-5.8.0-38 5.8.0-38.43~20.04.1 all Header files related to Linux kernel version 5.8.0
ii linux-image-5.4.0-59-generic 5.4.0-59.65 amd64 Signed kernel image generic
ii linux-image-5.8.0-34-generic 5.8.0-34.37~20.04.2 amd64 Signed kernel image generic
ii linux-image-5.8.0-36-generic 5.8.0-36.40~20.04.1 amd64 Signed kernel image generic
ii linux-image-5.8.0-38-generic 5.8.0-38.43~20.04.1 amd64 Signed kernel image generic
ii linux-image-generic-hwe-20.04 5.8.0.38.43~20.04.23 amd64 Generic Linux kernel image
ii linux-libc-dev:amd64 5.4.0-62.70 amd64 Linux Kernel Headers for development
ii linux-modules-5.4.0-59-generic 5.4.0-59.65 amd64 Linux kernel extra modules for version 5.4.0 on 64 bit x86 SMP
ii linux-modules-5.8.0-34-generic 5.8.0-34.37~20.04.2 amd64 Linux kernel extra modules for version 5.8.0 on 64 bit x86 SMP
ii linux-modules-5.8.0-36-generic 5.8.0-36.40~20.04.1 amd64 Linux kernel extra modules for version 5.8.0 on 64 bit x86 SMP
ii linux-modules-5.8.0-38-generic 5.8.0-38.43~20.04.1 amd64 Linux kernel extra modules for version 5.8.0 on 64 bit x86 SMP
ii linux-modules-extra-5.4.0-59-generic 5.4.0-59.65 amd64 Linux kernel extra modules for version 5.4.0 on 64 bit x86 SMP
ii linux-modules-extra-5.8.0-34-generic 5.8.0-34.37~20.04.2 amd64 Linux kernel extra modules for version 5.8.0 on 64 bit x86 SMP
ii linux-modules-extra-5.8.0-36-generic 5.8.0-36.40~20.04.1 amd64 Linux kernel extra modules for version 5.8.0 on 64 bit x86 SMP
ii linux-modules-extra-5.8.0-38-generic 5.8.0-38.43~20.04.1 amd64 Linux kernel extra modules for version 5.8.0 on 64 bit x86 SMP
ii linux-sound-base 1.0.25+dfsg-0ubuntu5 all base package for ALSA and OSS sound systems
ii syslinux-common 3:6.04~git20190206.bf6db5b4+dfsg1-2 all collection of bootloaders (common)
ii syslinux-legacy 2:3.63+dfsg-2ubuntu9 amd64 Bootloader for Linux/i386 using MS-DOS floppies
