Comment 7 for bug 1609436

Description of problem:

After updating to kernel 4.4.2-301, the screen goes black on boot and the system is not usable except via SSH. After the Grub menu goes away, the Fedora boot screen is visible for about one second, then the screen goes black. It's not X that doesn't work because switching to another tty (Ctrl + Alt + F2) is not possible either.

Luckily, Fedora always keeps a couple of older kernels installed, so instead of manually downgrading the kernel package, simply booting 4.3.5-300 is enough to get a working system.

Version-Release number of selected component (if applicable):

Kernel 4.4.2-301 or higher makes the screen go black.
Kernel 4.3.5-300 (or lower) works.

How reproducible:

100%, screen black with 4.4, screen works with 4.3.

Steps to Reproduce:
1. dnf upgrade
2. screen black after reboot

Actual results:

Screen black, system unusable.

Expected results:

Screen should work as it did before.

A software bug should never break the functionality of the screen. Some sort of fallback mode, maybe to a lower resolution, might be acceptable in case of a severe bug. But the screen suddenly not working anymore after a routine update is unacceptable under any circumstances.

Additional info:

No Nvidia driver installed:

# rpm -qa | grep -ci nvidia
0

# lspci | grep -i vga
00:02.0 VGA compatible controller: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller (rev 06)