[Bug 1580311] Re: Kernel hangs at boot with modesettings

2016-05-10 Thread mjh
** Package changed: xorg (Ubuntu) => linux (Ubuntu) ** Summary changed: - Kernel hangs at boot with modesettings + Regression: drm / modesetting failure for i915 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.

[Bug 1580311] Re: Kernel hangs at boot with modesettings

2016-05-10 Thread mjh
Booting 4.4.0-22 with just the kernel arguments root=/dev/mapper/ubuntu--15--vg-root ro and filming the kernel bring-up messages, I see that it the very last thing displayed is: []fb: switching to inteldrmfb from EFI VGA before the screne blanks (no backlight) and the machine becomes non- resp