I have an array of 4 monitors. They all work fine but I noticed that sometimes when I expand a video or window to fill the entire centre monitor the one on the left quickly goes blank (black) and turns back on. Is anyone else have issues like this?
Thanks
@tessierp I’ve had that issue, for me it was a refresh rate that the monitor couldn’t handle properly. I adjusted it and the issue went away. Your issue could be something different though.
I think my issue is different. All my monitors support 144 hz but noticed that some monitors reported 143.01hz so I lowered everything to 120 hz.. I wonder if this could be a Wayland bug?
You said some monitors reported 143.01 but did not state what all were reporting.
Several monitors with refresh that close together could easily have conflicts where the display refresh gets slightly out of phase and needs to readjust, just as reported by Patrick above.
Did resetting them all to the same refresh rate fix the problem?
Monitor refresh rates are controlled by the monitor edid reported when connected or booting as well as the gpu hardware and driver. Wayland is not part of those settings.
They are all reporting the same random values that slightly change at every boot.. For the 144 HZ I would be expecting, I would see values between 143.0x - 143.99.
I’m not sure I understand what you mean by “that close together”? Or why would they go out of phase? That is a problem I do not have under Windows 11 which correctly reports all monitors as 144 HZ which is what I have set them to work at under Windows. Now two of these could work at 165 HZ because they are plugged on the two available DisplayPorts I have on my video card (7900 XTX) and the other two can only support up to 144 HZ because they are on HDMI 2.1 which are the last two ports I have on that GPU. I just looked and now getting different values, the only value that seems to be “stable” is 120 HZ.. And yes all my monitors support up to 165 HZ except for one which is limited to 144 HZ.
There right there are all the random weird values that I have available for all monitors except for the one limited to 144 HZ which displays 3 values instead of 4. 120 HZ is the only rounded value on all 4 of them.
I would not operate monitors at different refresh rates. And yes initially I set them to 144 HZ and the noticed those weird 143.xx HZ so I moved them all to 120 HZ and the monitor connected to the last HDMI 2.1 port still does that quick going black and back on again. That does not happen under Windows 11.
I’m sure the monitor has to report what it supports. My point is that Windows is correctly interpreting and display the proper refresh speeds being 60, 120, 144 and 165 but on KDE FEDORA WAYLAND I get those weird values, so surely there is an interpretation problem somewhere..
Anyway, just trying to understand what is happening here and perhaps figure out where I should perhaps report this issue so that it gets looked into.
