[Bug 192462] New: vt has display issues when switching vty's

bugzilla-noreply at freebsd.org bugzilla-noreply at freebsd.org
Thu Aug 7 07:33:06 UTC 2014


            Bug ID: 192462
           Summary: vt has display issues when switching vty's
           Product: Base System
           Version: 11.0-CURRENT
          Hardware: Any
                OS: Any
            Status: Needs Triage
          Severity: Affects Only Me
          Priority: Normal
         Component: kern
          Assignee: freebsd-bugs at FreeBSD.org
          Reporter: jmg at h2.funkthat.com

issues #2 and #4 from:

Second, once one vty has the gallant font loaded, if you switch vty's,
it can occure that the new vty does not display ANY text..  The display
is mostly blank...

Fourth, when switching screens, there is a brief flash of vertical
stripes before the new screen comes on...  Can we do something to make
sure that this transition is clean?  Either a completely blank screen,
or ideally, no blank screen, but the new text appearing?

There are issues w/ font loading and display switching w/ the vt_vga
display driver...

System: FreeBSD carbon.funkthat.com 11.0-CURRENT FreeBSD 11.0-CURRENT #2: Tue
Aug  5 16:40:10 PDT 2014    
jmg at carbon.funkthat.com:/usr/home/jmg/freebsd.p4/opencrypto/sys/amd64/compile/GENERIC


load a font (for #2) and then just randomly switch between vty's...
Very randomly (it may take 10 or 20 tries) the console will not display
anything.. If you switch away and back again, there will be text...

Also, looking closely when switching vty's, there is "junk", in my case,
vertical lines, that is displayed between the text of the two vty's...


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