Bug 229882

Summary: The smashed screen on Lenovo G400 with UEFI
Product: Base System Reporter: ykla <yklaxds>
Component: miscAssignee: freebsd-bugs (Nobody) <bugs>
Status: Closed FIXED    
Severity: Affects Many People    
Priority: ---    
Version: CURRENT   
Hardware: amd64   
OS: Any   

Description ykla 2018-07-19 05:46:45 UTC 
Lenovo G400: HD4000 
  When boot G400 under UEFI (UEFI+GPT) to install FreeBSD 10/11/12, the screen will blur.
  And if you do not use UEFI (BIOS+MBR), you can install FreeBSD normal.
  And I had closed my AMD devices(HD 8570M). So I think maybe something trouble in UEFI firmware.
  I invite many G400 users to test it and in the same as me.
Comment 2 ykla 2018-07-19 07:21:44 UTC 
I think it caused by DVMT-Prealloc. But I can't change it on Lenovo G400 notebook that has no setting about DVMT.
Comment 3 ykla 2019-01-28 04:23:04 UTC 
(In reply to ykla from comment #2)
I adjusted it but not this.
Comment 4 ykla 2020-12-19 08:46:10 UTC 
Lenovo G400 both of i3-3110M and i5-3230M are failed boot under UEFI With a blurred screen.
Comment 5 ykla 2021-04-26 13:22:39 UTC 
FreeBSD 13.0 release make it.