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Bug #3167

UEFI boot hangs right after initializing UEFI framebuffer

Added by mneumann 9 months ago. Updated 9 months ago.

Status:
New
Priority:
Normal
Assignee:
-
Category:
-
Target version:
Start date:
01/09/2019
Due date:
% Done:

0%

Estimated time:

Description

This happens on a recent Tuxedo laptop. See attached screenshot.

I have come up with a working (but hacky) patch:

https://www.dragonflybsd.org/~mneumann/patch-fb-machdep.c

After patching, if I set loader tunable sc.probe_early=1 then it correctly boots.


Files

IMG_20181126_181023.jpg (1.34 MB) IMG_20181126_181023.jpg Screenshot mneumann, 01/09/2019 12:15 PM

History

#1

Updated by mneumann 9 months ago

See commit
https://gitweb.dragonflybsd.org/dragonfly.git/commit/c2a57f42609ac17ec656d5600c7f70f38fc8ba62

Try booting with machdep.hack_efifb_probe_early=1.

#2

Updated by shassard 9 months ago

I've tried this patch on my Lenovo Yoga 920 that previously was unable to get past the loader initial screen.

It now boots perfectly and I'm able to fire up Xorg without issues.

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