Monitors will not go into standby

compdoc compdoc at
Wed Jun 6 18:00:01 UTC 2018

On 06/06/2018 11:33 AM, Tony Arnold wrote:

> Do you mean the type of cable or quality/features of cable? I have 2
> monitors. One is on display port and the other is DVI. Neither of them
> go into power save mode.

They make DVI cables that are fully wired with a decent gauge wire, and 
they also make them with only a bare minimum wires and not all pins are 

Theres various ways to make monitors sleep, and one way is using the 
wiring. A way to rule things out would be to try a quality VGA cable, if 
the vid card/monitor support it.

Another might be a try a different brand of DVI cable that appears to to 
have all wires/pins actually connected properly.

I cant speak to Display Port. The connector reminds me of a usb cable, 
where the video/audio signal must be sent serially? I haven't researched 

Maybe the OS expects VGA and the signaling its using is not compatible 
with DVI or Display Port. Maybe the type of signaling can be adjusted.

More information about the ubuntu-users mailing list