Hacker News new | ask | show | jobs
by tuna74 502 days ago
How would you "watch a pixel on the screen" in pure software. You need a camera and an input device in the loop.
1 comments
jay_kyburz 502 days ago
Is it not possible to simply query the frame buffer right before its sent down the HDMI cable. What color is pixel 0,0?
link
tuna74 502 days ago
Maybe you could do that by hacking the driver in a Linux system? I don't know actually.
link