Steve Fosdick

That's interesting. I wonder if I am remembering correctly, but I think at one time the full screen mode used to maintain something close to the 4:3 aspect ratio of...

I think I can see a little more of what is going on here. If I change the "border" colour to blue, In this screen shot:  You can see...

The two pull requests: https://github.com/stardot/b-em/pull/166 and https://github.com/stardot/b-em/pull/167

I have created a branch for this issue and pushed a commit which I believe fixes this: https://github.com/stardot/b-em/tree/sf/issue193

Now updated further to make it work again on Windows.

That certainly looks strange and I can see why most people wouldn't want that, but that is not what I get. Starting with a normal window: ...

I have pushed the change to 0x3f. I agree this is safe even on a non-integra machine. On seeing the actual ROM, I think the limitation here is that the...

I don't think any of this is documented, though obviously the code us there to read. The official way to enable debug messages in a module is to re-run configure...

A pull request is a fine way seeing the changes. I did just have a quick look and there is a need to deal with the ROM at the top...

Are you running a more recent version of CiscOS than the ROM bundled with b-em? Also see: https://github.com/stardot/b-em/tree/sf/tubecfg which has the changes to define tube models in the config file.