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GeForce RTX 2070 / HDMI issues

Posted: 2021/05/29 09:52:21
by jjw

I have an issue with Centos 7.

I use a GeForce RTX 2070 and three monitors (AOC 2775, 2x Samsung LS32R750Q). Two via hdmi and two via display port.

I have to unplug and plug in the HDMI to have the monitor recognized. There is a screen display per se, in the sense that the desktop is extended to the three, just that the HDMI is blank. If I unplug the HDMI and reinsert it restarts again. After screen lock (after 5 min inactive), the HDMI goes down again. Then another plug-out/plug-in is required to have it going again.

Tried swapping monitors. Tried swapping cables.

I (re)installed what I believe is the latest version of the driver.

Works well in Windows.

Any ideas on where to start debugging, thanks?

Code: Select all

> cat /etc/centos-release
CentOS Linux release 7.9.2009 (Core)

> uname -r

> nvidia-smi 
| NVIDIA-SMI 460.80       Driver Version: 465.31       CUDA Version: 11.2     |

Re: GeForce RTX 2070 / HDMI issues

Posted: 2021/06/07 08:43:30
by bonedome
Sorry can't help with the driver but I disable my screensaver with

Code: Select all

xset -dpms s off
If you must have a screensaver maybe a keyboard shortcut to the xrandr command used to set the 3 screens

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xrandr -q
will show your current setup and options.