[solved] VESA not show all LFB memory

[Klakap]

Good afternoon,
I get this strange output when I try my OS on real PC, I later found that this comes on Virtualbox too.
[image]
It seems that when I try to write to pixels whose are on bottom, it write to pixels from start of screen. My driver work on QEMU and two other computers, so I am sure that:
1. I right setting VESA mode thought int 0x10
2. Monitor support this mode
3. I am getting right informations from VESA mode info packet

Please have you any experience with this strange thing?

[Klakap]

I solved this. I forgot enable A20 gate and it was point of all errors.