Electronics

642 readers

1 users here now

Digital, analog, RF, microcontrollers, FPGAs.

Theory and practice. New designs, prototypes, breadboards, hacks and mods.

Show your projects, learning resources and interesting articles here.

founded 4 years ago

MODERATORS

[email protected]

Lower part of the screen is updated one frame earlier. Signal source: HDMI (pixelfed.social)

submitted 1 year ago* (last edited 1 year ago) by [email protected] to c/[email protected]

5 comments fedilink hide all child comments

The lower part of my screen is updated one frame earlier than the upper part. I was able to isolate the error to the HDMI output of my laptop. The screen or cable is not broken, as I don't get these errors with other connected devices. I am assuming it is some hardware defect. Does anyone know what it could be and how I could fix it? Here are a few pictures that show the problem: pixelfed

Solved: Ok, it seems to have been a software problem. That had to do with the sync. I have installed ubuntu on the laptop for now and everything works again. Some update seems to have shot something. I am now using a

you are viewing a single comment's thread
view the rest of the comments

[–] linearchaos 1 points 1 year ago (1 children)

How did you capture the pics?

[–] [email protected] 1 points 1 year ago (1 children)

With my Phones Camera. But the effects are visible with just your eyes.

[–] linearchaos 1 points 1 year ago

Yeah I don't mean to imply or not seeing problems I'm just seeing artifacts in there that line up pretty strongly with rolling shutter and I'm making sure that that's actually what that is.

It looks like you're just having some screen tearing issues which are relatively common.

Here's an example of some people trying to tackle it on Ubuntu on a laptop.

https://askubuntu.com/questions/1292831/ubuntu-18-04-screen-tearing-only-on-external-monitor

Disabling or enabling V-Sync can also help.