kern/75159: (SC|VGA)_NO_FONT_LOADING in kernel config breaks vtys.

[Mike Meyer]

>Number:         75159
>Category:       kern
>Synopsis:       (SC|VGA)_NO_FONT_LOADING in kernel config breaks vtys.
>Confidential:   no
>Severity:       serious
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Thu Dec 16 17:10:12 GMT 2004
>Closed-Date:
>Last-Modified:
>Originator:     Mike Meyer
>Release:        FreeBSD 5.3-STABLE i386
>Organization:
Meyer Consulting
>Environment:
System: FreeBSD guru.mired.org 5.3-STABLE FreeBSD 5.3-STABLE #12: Wed Dec 15 18:22:07 CST 2004 mwm at guru.mired.org:/usr/src/sys/i386/compile/GURU i386


>Description:
	When booting a kernel that uses the sc device for a console,
and either VGA_NO_FONT_LOADING or SC_NO_FONT_LOADING enabled and
running an xdm on one of the VTYs, the non-X vtys come up with no
visible font. Further, on shutdown the console is garbaged.

I have no idea if this problem happens or not if you fail to start an
X server. It may not.

>How-To-Repeat:
	Build a kernel with either of those two options enabled, boot
	it, and run an X server. Then switch to a different vty, and
	observe that you either get garbage on the screen, or that no
	characters are printed.


>Fix:

	The work-around is to not enable those two options. I haven't
	had time to look into fixing the problem, but will if I find
	the time.


>Release-Note:
>Audit-Trail:
>Unformatted: