D16003.diff
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	Index: head/share/man/man4/vt.4
	===================================================================
	--- head/share/man/man4/vt.4
	+++ head/share/man/man4/vt.4
	@@ -44,6 +44,7 @@
	In
	.Xr loader.conf 5 :
	.Cd hw.vga.textmode=1
	+.Cd hw.vga.acpi_ignore_no_vga=1
	.Cd kern.vty=vt
	.Cd kern.vt.color.<colornum>.rgb="<colorspec>"
	.Cd kern.vt.fb.default_mode="<X>x<Y>"
	@@ -196,6 +197,10 @@
	Set to 1 to use virtual terminals in text mode instead of graphics mode.
	Features that require graphics mode, like loadable fonts, will be
	disabled.
	+.It Va hw.vga.acpi_ignore_no_vga
	+Set to 1 to force the usage of the VGA driver regardless of whether
	+ACPI IAPC_BOOT_ARCH signals no VGA support.
	+Can be used to workaround firmware bugs in the ACPI tables.
	.It Va kern.vty
	Set this value to
	.Ql vt
	Index: head/sys/dev/vt/hw/vga/vt_vga.c
	===================================================================
	--- head/sys/dev/vt/hw/vga/vt_vga.c
	+++ head/sys/dev/vt/hw/vga/vt_vga.c
	@@ -1217,6 +1217,12 @@
	ACPI_TABLE_FADT *fadt;
	vm_paddr_t physaddr;
	uint16_t flags;
	+ int ignore;
	+
	+ TUNABLE_INT_FETCH("hw.vga.acpi_ignore_no_vga", &ignore);
	+
	+ if (ignore)
	+ return (false);

	physaddr = acpi_find_table(ACPI_SIG_FADT);
	if (physaddr == 0)