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graphic: 0.948
device: 0.787
files: 0.752
semantic: 0.745
PID: 0.619
vnc: 0.608
debug: 0.489
other: 0.484
socket: 0.453
performance: 0.415
permissions: 0.368
boot: 0.348
network: 0.324
KVM: 0.193
Display mode 0x6 doubles lines
Description of problem:
When developing https://github.com/korneliuszo/ne2000xt I've occured problem with double lines in mode 0x06 of VGA display, problem doesn't exist in mode 0x05
Steps to reproduce:
1. Call int 0x10, to setup video mode
2. put data into video ram (./cga.py -i 192.168.1.102 -I ~/a.png)
3. bad display
Additional information:
Bad display:

Same data, but in mode 0x05

Same script as in bad display but run under 86Box

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