OpenBSD 7.1 resolution in VirtualBox

[liar666]

Hi,

Due to a problem with my wifi card (see http://daemonforums.org/showthread.p...2528#post72528), the only way I found to run my OpenBSD box with an internet access is to start Win10 (which is the only other system I have also installed on the box), then run OpenBSD as a Guest in VirtualBox directly from the HD, using the trick here:
http://guillaumemuller1.free.fr/show...php?entry=1545 (as OpenBSD is installed on the same HD as Windows).

This works pretty well in text mode. I managed to install / setup almost everyting I need.

Unfortunately, when I start Xorg, it runs with a ~4000x~4000 resolution, which makes it very difficult to use on my 1600x900 screen.

I've tried various tricks that worked in the past :
- Forcing VBox's VM CustomVideoMode
https://www.tumfatig.net/2019/custom...in-virtualbox/
- Use xrandr to change the resolution
https://r0ngsh3n.github.io/common/ch...on-via-xrandr/

But it did not succeed.

In particular the xorg.conf file I copied from the site results in "No Screen Found". And apparently Xorg --configure does not work on OpenBSD. And I don't remember how to setup Xorg manually :[

I tried to play with scaling, both in VBox and in Xorg, but it did not work.

Does anyone have the same problem? Is there a solution?

[J65nko]

For some ideas see http://daemonforums.org/showthread.php?t=11734
You can check /var/log/Xorg.0.log for clues why it trying such a high resolution.

[Head_on_a_Stick]

The ArchWiki has a sample configuration file that adds new modelines (as generated by, for example, cvt(1)) and sets the preferred mode:

https://wiki.archlinux.org/title/Xra...ed_resolutions

[liar666]

Hi again,

Thanks for the pointers. I already had a look at xrandr and creating new modes, but with no success.

By looking at /var/log/Xorg.0.log, I discovered the driver used is "wsfb", which made me assume that indeed xrandr would not work and I had to focus on the console.

Thanks to the following pages:
https://www.unitedbsd.com/d/271-wfsb/6
https://man.openbsd.org/boot.8
I discovered that I can set the console resolution at boot, using:

> machine gop
> machine gop <x>
> boot

and I finally managed to boot my OpenBSD installation within VBox in Windows, so that I'll now be able to debug the wifi connection problems I reported here: http://daemonforums.org/showthread.p...2528#post72528...

Thanks everybody for your help!!!
I thought it would take me ages to find a solution and finally it was a really easy one (as often with OpenBSD when you know where to look ).

See you soon!

[scottro]

By the way, my VirtualBox of OpenBSD, running on FreeBSD, enables me to enlarge it with a

xrandr -s 1280x1024

in my .xinitrc. For me, that's a big help and keeps me from worrying about modelines.
Good luck with your debugging, hope you fix it quickly.