How to change monitor resolution at boot?

[<netbsdrat%gmail.com@localhost>]

I have a laptop (TOSHIBA), w/ 8.1.

 

When I boot with an external monitor attached (and laptop lid closed), after the 'drm' is activated, the current text line is below the bottom of the external monitor!

 

Same thing at the login screen and after logging in.  Need to press ENTER about 10 times to see what was just typed.

 

If I flip the laptop lid open, the layout on the internal screen is perfect, eg, all the text is inside the screen boundary.

 

This is not a 'adjust the monitor' problem.

 

'stty rows 48 cols 128' and then a command that resets screen will fix the screen to be visible.

 

it was 56 rows and 200 columns, where does this come from?

 

What I think is happening, is that the boot detects the size of the internal screen even though it is supposed to be OFF.  (Lid closed.), and uses that resolution for the external screen.

 

Of course windows 10 has altered the original BIOS so the Toshiba hot keys for switching the internal / external monitor do not work (well, outside of windows 10 that is).  They do not work at boot up anymore.

 

So, is there some place to override the detected screen resolution at boot, so it works on external monitor with different resolution?

 

Also, If the internal / external monitor keyboard hot keys WERE working, how does netbsd adjust the resolution when switching back and forth?

 

Thanks,

 

John Refling