Well, hum, sorry, but finally in my case, it does seems that:
modprobe vesafb
modprobe fbcon
followed by Ctrl-Backspace (the step I was not doing before) to reset the X server does indeed fix the problem.
So I now consider this a duplicate of #129910 for me.
mcsekar, sorry if this seems like a stupid question but: Did you reboot after your changes?
Well, hum, sorry, but finally in my case, it does seems that:
modprobe vesafb
modprobe fbcon
followed by Ctrl-Backspace (the step I was not doing before) to reset the X server does indeed fix the problem.
So I now consider this a duplicate of #129910 for me.
mcsekar, sorry if this seems like a stupid question but: Did you reboot after your changes?