port-i386/41929: genfb and machdep.acpi_vbios_reset=2 interaction

[jmcneill%invisible.ca@localhost]

>Number:         41929
>Category:       port-i386
>Synopsis:       genfb and machdep.acpi_vbios_reset=2 interaction
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    port-i386-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Mon Aug 24 10:20:00 +0000 2009
>Originator:     Jared D. McNeill
>Release:        NetBSD 5.99.15
>Organization:
        
>Environment:
        
        
System: NetBSD pipes.invisible.ca 5.99.15 NetBSD 5.99.15 (MONOLITHIC) #31: Mon 
Aug 24 06:12:39 EDT 2009 
jmcneill@soyuz:/home/jmcneill/branches/src/sys/arch/i386/compile/obj/MONOLITHIC 
i386
Architecture: i386
Machine: i386
>Description:
        The genfb driver on x86 needs to use a similar strategy to vga when
        the machdep.acpi_vbios_reset sysctl is set to 2, with the additional
        functionality of restoring the previous VESA VBE mode after initiating
        VGA POST.
>How-To-Repeat:
        
>Fix:
        

>Unformatted: