Given that it boots to the kernel, but the kernel can't setup the drm device, I'm inclined to believe this is a kernel bug.
** Package changed: grub2 (Ubuntu) => linux (Ubuntu) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1901505 Title: upgrade to 20.10 broke haswell laptop (no regular boot, no /dev/dri/card0) Status in linux package in Ubuntu: Incomplete Bug description: Laptop installed with kubuntu focal is not booting after upgrade to 20.10 (that apparently went smooth without any error). - laptop hangs on boot - no splash screen is displayed - laptop can boot in recovery mode - in this case you do not get /dev/dri/card0 - if X is started it starts on llvmpipe - i915 driver is loaded, no error about it in journal or dmesg To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1901505/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
