<div dir="ltr"><div class="gmail_default" style="font-family:verdana,sans-serif">I've not run into that situation before. I have my xorg set to pin the resolution with this line in my Screen Section:</div><div class="gmail_default" style="font-family:verdana,sans-serif"><br></div><div class="gmail_default" style="font-family:verdana,sans-serif">Option "metamodes" "1920x1080 +0+0 { ForceFullCompositionPipeline=On }"</div><div class="gmail_default" style="font-family:verdana,sans-serif"><br></div><div class="gmail_default" style="font-family:verdana,sans-serif">The only issue I have is when I reboot my machine, if the TV is not on and connected to the machine, my display is blank. I think this is because it can't get the EDID info from the TV, so it doesn't know how to initialize the output. At one time I had extracted the EDID and used my xorg.conf to specify it, but I lost that bit along the way. For me, it isn't that big an inconvenience as I don't reboot often and it's easy to just ensure the TV is on when I do.</div><div class="gmail_default" style="font-family:verdana,sans-serif"><br></div><div class="gmail_default" style="font-family:verdana,sans-serif">I believe you can pin the output resolution to 60Hz refresh with a line like this:</div><div class="gmail_default" style="font-family:verdana,sans-serif"><br></div><div class="gmail_default" style="font-family:verdana,sans-serif">Option "metamodes" "1920x1080_60 +0+0 { ForceFullCompositionPipeline=On }"<br></div><div class="gmail_default" style="font-family:verdana,sans-serif"><br></div><div class="gmail_default" style="font-family:verdana,sans-serif">I don't do that myself because I watch different content that have different FPS (some 24, some 30, some 60) and I want the TV to switch to whatever the content is using. Also, I want to say that I had some issues with some content being detected as 59.XXX FPS and my TV/1030 can switch to that output. So I opted for just pinning the resolution and letting the refresh rate change with the content.</div><div class="gmail_default" style="font-family:verdana,sans-serif"><br></div><div class="gmail_default" style="font-family:verdana,sans-serif">Hope that helps,</div><div class="gmail_default" style="font-family:verdana,sans-serif">Erik<br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, May 11, 2020 at 6:00 AM Jim Abernathy <<a href="mailto:jfabernathy@gmail.com">jfabernathy@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Now that I have the GT 1030 working in Xubuntu 20.04 with the Nvidia-440 <br>
driver, most things like Mythtv are working great.<br>
<br>
However, I can't seem to keep the display at 1920x1080@60hz. It wants to <br>
switch back to 4K which is the EDID or automatic choice by default.<br>
<br>
So on boot it uses the /etc/X11/xorg.conf file that the Nvidia X server <br>
setting program created to force it to 1080p. But if I switch the AV <br>
Receiver away for some period of time from the computer port to DVD <br>
player or anything else and then switch back to the computer it comes <br>
back as 4K like it forgot how it booted. If I switch away for a short <br>
time like 3-5 minutes it comes back in 1080p as I want.<br>
<br>
I'm thinking Ubuntu is getting an event triggered by the switching back <br>
to computer port of the AVR and using auto settings for the display. If <br>
I run Nvidia X server app at this point the configuration settings are <br>
in auto instead of 1920x1080@60. I can either change it again or reboot.<br>
<br>
Or, the display power management mode is getting in the way. I had it <br>
in Presentation mode and Display power management off. I'm running a <br>
test now where Presentation mode is off, but I turned on the Display <br>
power management but set the timer settings to 'never'. I see if that works?<br>
<br>
Anyone know what's happening?<br>
<br>
Jim A<br>
<br>
<br>
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