[Bug 283130] screen glitches when vga change to drmfb on the boot

From: <bugzilla-noreply_at_freebsd.org>
Date: Wed, 04 Dec 2024 18:35:25 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=283130

            Bug ID: 283130
           Summary: screen glitches when vga change to drmfb on the boot
           Product: Base System
           Version: 14.2-RELEASE
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: standards
          Assignee: standards@FreeBSD.org
          Reporter: azukikun@tutanota.com

the screen glitch when it changes from vga to drmfb on boot, the screen turn
all black with some strange artifacts on tops but the vt is totally usable, i
just cant see what i typing and the xorg works completely

this was not happening on the 14.1-RELEASE, only started to happen when i
upgraded to the 14.2-RELEASE

i am using the i915 driver from graphics/drm-kmod on a intel hd 4600 and my
uname is 
'FreeBSD bsd 14.2-RELEASE FreeBSD 14.2-RELEASE releng/14.2-n269506-c8918d6c7412
GENERIC amd64'

this bug happen using bios and uefi

sorry for my bad english, english is not my native language

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