You have been subscribed to a public bug:
Unclear to me if the issue is with the linux kernel, the intel graphics driver
or what.
In any case, an haswell laptop recently updated from 20.04 to 20.10 now hangs
on boot unless you explicitly set GFX_PAYLOAD_LINUX=text in the grub
configuration.
The hang is just before starting X and sddm (distro is actually
kubuntu).
When hanging, the system remains responsive to SysRq+B, hence only the
video subsystem appears to go dead.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: bot-comment rls-gg-incoming
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Ubuntu 20.10 needs GFX_PAYLOAD_LINUX=text to boot on haswell laptop
https://bugs.launchpad.net/bugs/1901583
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