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Date:      Wed, 06 Aug 2014 23:24:33 +0000
From:      bugzilla-noreply@freebsd.org
To:        freebsd-bugs@FreeBSD.org
Subject:   [Bug 192456] New: vt vt_vga graphical console very slow in XenServer, VirtualBox
Message-ID:  <bug-192456-8@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=192456

            Bug ID: 192456
           Summary: vt vt_vga graphical console very slow in XenServer,
                    VirtualBox
           Product: Base System
           Version: 11.0-CURRENT
          Hardware: Any
                OS: Any
            Status: Needs Triage
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: freebsd-bugs@FreeBSD.org
          Reporter: mcdouga9@egr.msu.edu

I tried booting with kern.vty=vt on Xen and VirtualBox to see what happens. 
XenServer console is extremely slow, about 4-5 seconds to redraw the whole
screen each time a new line is printed, booting takes several minutes. 
VirtualBox is slow, but not as bad, takes approx 1 second to redraw screen
(tolerable but not ideal).

I tried FreeBSD-11.0-CURRENT-amd64-20140804-r269497-disc1.iso as well as
snapshot isos of 10 and 11 from about a month ago (I didn't specifically check
age).

Setting hw.vga.textmode=1 restores normal speed like syscons.  Would it be a
good idea to make the kernel default to textmode if kern.vm_guest isn't "none"?

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