On 8/15/22 09:47, David C. Rankin wrote:
Occurs with Linux 5.19 kernel as well. Interestingly, Win7 guests start with
the proper full screen shown, and will run for 5-10 minutes without issue, but
then the rdesktop session closes and when restarted, the full window size is
there, but only 1024x768 of the desktop is shown.
Vbox guests are unusable via rdesktop at this point. This is with host and
guest running 6.1.36.
Well,
After pulling my hair out trying to find what in the hell was causing
virtualbox to paint on 1024x768 of my 1440x864 rdesktop window, I found a
solution (I still do not know what changed, but there was a change to either
rdesktop or X or vbe)
The issue ended up being how rdesktop saw the window. So while since
virtualbox 4x, the controlvm setvideomodehint 1440 864 32 has always been
enough to have rdesktop paint the entire windows, due to whatever change was
made, that no longer works.
Passing the "-g workarea" option to rdesktop on start is enough for
rdesktop to see the videomode hint.
This has been a wild goose chase. grub, grub GFXMODE or GFXPAYLOAD had
nothing to do with the final problem. It was all in the way rdesktop saw the
size hint from the window manager. That doesn't explain why windows guest
worked a majority of the time without the additional option, but I guess the
differences in underlying desktop was enough.
Hope this saves someone else the grief of running headless guests and
trying to graphics mode work right.
--
David C. Rankin, J.D.,P.E.
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