xorg Digest, Vol 166, Issue 13

[csoren at cpinternet.com]

> 
> Date: Sat, 25 May 2019 18:56:54 -0600
> From: Benjamin Slade <beoram at gmail.com>
> To: xorg at lists.x.org
> Subject: monitor loses DVI after KMS / EDID issue?
> Message-ID: <87d0k6owx5.fsf at jnanam.net>
> Content-Type: text/plain
> 

<snip>

> As well as manually configuring xorg.conf (relying on the the output
> of `hwinfo --monitor`) to:
> 
> --8<---------------cut here---------------start------------->8---
> Section "Device"
>     Identifier  "DefaultDevice"
> EndSection
> 
> Section "Monitor"
>     Identifier  "DefaultMonitor"
>     HorizSync   24-83
>     VertRefresh 50-77
>     Option      "TargetRefreshRate" "60"
>     Option      "DDC"   "off"
>     Option      "DPMS"  "off"
>     Option      "DefaultModes"  "on"
>     Option      "PreferredMode" "1280x1024"
> EndSection
> 
> Section "Screen"
>     Identifier  "DefaultScreen"
>     Device      "DefaultDevice"
>     Monitor     "DefaultMonitor"
> EndSection
> 

Your screen section is the likely culprit, I had similar "dvi going to 
sleep" problems which I finally eradicated with the following screen 
section (note that your metamodes are probably completely different from 
mine):

Section "Screen"
     Identifier     "Screen0"
     Device         "Device0"
     Monitor        "Monitor0"
     DefaultDepth    24
     Option         "IgnoreEDIDChecksum" "CRT"
     Option         "Stereo" "0"
     Option         "metamodes" "2560x1440 +0+0; 1680x1050 +0+0; 
1280x1024 +0+0; 800x600 +0+0; 640x480 +0+0"
     Option         "SLI" "Off"
     Option         "MultiGPU" "Off"
     Option         "BaseMosaic" "off"
     SubSection     "Display"
         Depth       24
     EndSubSection
EndSection