Comment # 33 on bug 1178360 from Larry Finger

In all my testing, there are no display problems with the graphics controller
set to VMSVGA. Of course, all that is with openSUSE hosts and various guests.
My standard test machines are Windows XP, 7, and 10 as well as openSUSE TW,
Leap 15.1 and Leap 15.2. I do have one test machine that gets other Linux
distros if there are complaints. If you had a problem with a Ubuntu guest on an
openSUSE host, I could look at that.

Note that even VB 6.1.10 is pretty old. With 6.1.12, Oracle fixed 25 CVE
exploits - the ones I mentioned earlier. I would not want to run such a system
five months after those exploits have been published.

I have no idea what change there might be in kernel 5.9 that would break
graphics on an old host system. At least it works with the recommended VMSVGA
virtual controller.

It may be true that "We can't force them all to upgrade their host systems to
something newer", but it is definitely true that I have little enthusiasm for
debugging Ubuntu problems. I have too many problems already, including that VB
may never run on hosts with kernel 5.10+.

My inclination is to close this with a WONT FIX.