Weird laptop connected to monitor issue.

[alessandrochemello1234]

Hello Forum.

Today I bought a mini displayport to displayport cable to connect my laptop with my monitor. Before I bought this cable, I used a hdmi cable to connect my laptop with my monitor, had no issues even at 120hz. I currently am Dual booting Ubuntu with Windows (Ubuntu for work and Windows for gaming). When I connected the cable to my monitor and boot up Ubuntu it had no issues, everything was normal. But then, I tried it with Windows and the monitor looked as if it was broken, flickering every like 20 seconds and some blue points all over the screen appeared. I tried fixing it changing to every mode possible, 60 hz, 100hz, 120hz, etc. Nothing worked, I would have thought it's problem of the cable or monitor, but i'm sure it's not, because ubuntu works just fine with any configuration.

 

[alessandrochemello1234]

MERGED QUESTION
Question from alessandrochemello1234 : "Repost: Weird laptop connected to monitor issue."

Hello Forum.

Today I bought a mini displayport to displayport cable to connect my laptop with my monitor. Before I bought this cable, I used a hdmi cable to connect my laptop with my monitor, had no issues even at 120hz. I currently am Dual booting Ubuntu with Windows (Ubuntu for work and Windows for gaming). When I connected the cable to my monitor and boot up Ubuntu it had no issues, everything was normal. But then, I tried it with Windows and the monitor looked as if it was broken, flickering every like 20 seconds and some blue points all over the screen appeared. I tried fixing it changing to every mode possible, 60 hz, 100hz, 120hz, etc. Nothing worked, I would have thought it's problem of the cable or monitor, but i'm sure it's not, because ubuntu works just fine with any configuration.

 

[Saga Lout]

It's unfortunate your thread didn't see any responses but I have to merge the two and bring it to the top of the list by making this reply.

Someone will have an answer but I have only a question. Have you tweaked Windows resolution settings?

 

[alessandrochemello1234]

It's unfortunate your thread didn't see any responses but I have to merge the two and bring it to the top of the list by making this reply.

Someone will have an answer but I have only a question. Have you tweaked Windows resolution settings?

Yes

 

[Saga Lout]

Sounds like the cable is suspect number one. Does the original cable produce a better result?

 

[alessandrochemello1234]

Sounds like the cable is suspect number one. Does the original cable produce a better result?

This is a cable I bought online and is the only one I have. It would be weird if it was the cable because if that was the case, it wouldn't even work with Ubuntu.