Date: Thu, 24 Feb 2022 15:02:23 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 230172] FreeBSD 11.2 fails to boot on Celeron J1900 after upgrade from 11.1 (ACPI indicates no VGA) Message-ID: <bug-230172-227-z8ZVpILrPB@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-230172-227@https.bugs.freebsd.org/bugzilla/> References: <bug-230172-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D230172 Ed Maste <emaste@freebsd.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |royger@freebsd.org --- Comment #59 from Ed Maste <emaste@freebsd.org> --- ACPI FADT VGA check was added in: commit c2272faa06dec2f027c5359529cf8f4f3593c164 Author: Roger Pau Monn=C3=A9 <royger@FreeBSD.org> Date: Tue Mar 13 09:38:53 2018 +0000 vt_vga: check if VGA is available from ACPI FADT table On x86 the IA-PC Boot Flags in the FADT can signal whether VGA is available or not. In Linux presence of the the flag sets x86_platform.legacy.no_vga =3D 1 whi= ch is used in only one place, arch/x86/xen/enlighten_hvm.c xen_hvm_guest_late_ini= t() In particular as far as I can tell it does not appear to control whether the VGA console is probed or not. It seems there is a lot of firmware with brok= en ACPI tables that incorrectly sets this flag and it may be better to ignore = it. Roger, is it possible that the flag could be used only w/ Xen? --=20 You are receiving this mail because: You are the assignee for the bug.=
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