Screen goes green-ish or red-ish and flickers in ubuntu 14

Asked by Patricia on 2015-01-05

I've been using ubuntu 10 for a while until I switched to ubuntu 14 (I formatted the computer instead or upgrading from 10 to 14). As soon as I started using the default Unity UI in ubuntu 14, my screen began to turn green-ish and sometimes red-ish (but mostly green). I thought the monitor was faulty so I changed it, but I noticed the same problem. So I thought the connections might be having problems and changed the wires that connect the monitor to the pc. Same thing happened. So I went back to the old monitor with the new wires. Same issue. Went back to my initial configuration of monitor+wire and I still experience the same.
It seems to happen at random times: the screen just gets a green tone (as if colors were really unbalanced) and flickers for a while back and forth (from regular colors to greenish). Then for a while it's normal and then suddenly it comes back.
Since I tried the hardware solutions I could think of, is there any software-related thing I could try?

Question information

English Edit question
Ubuntu xorg Edit question
No assignee Edit question
Last query:
Last reply:

Check the video card is seated correctly.

You may want to check your RAM using Memtest from Grub as well.

Can you help with this problem?

Provide an answer of your own, or ask Patricia for more information if necessary.

To post a message you must log in.