I use 7 monitors: in a 3 over + 3 under +1 portrait configuration. GNOME Display Arrangement draws 7 very tiny monitor icons with a huge amount of white space. The icons are so small that I cannot reliably rearrange them. I can hardly even select them or move them around. Is there a fix for this issue?
Aside from that, video displays very nicely on all monitors and there are no other issues. I'm using onboard Intel video and PCIe Nvidia GTX 760. I have included a Display Arrangement screenshot, and also magnified the tiny icons for comparison. Its quite chaotic. There is also a pic of the actual monitors, and finally the Nvidia X Server Settings.
I have reviewed the GNOME monitors.xml file and found 2 duplicate entries and deleted them. It did not resolve the issue. Even if I disable all of the monitors then re-enable them one by one, by the time the 5th and 6th monitors are enabled the icons are almost too small to rearrange.
No fix identified for this graphical issue yet (10 days), so in the meantime I have manually edited the monitors.xml file. I use four different screen configurations (bottom middle screen only, 3 bottom, 3 bottom+TV, all monitors). Since I can't rely on moving the tiny monitor icons around in GNOME Display Arrangement I have made 4 different monitors.xml to match the 4 required configurations. Then I made 4 bash scripts and associated 4 application launcher icons to them. Now I can rapidly switch between all screens, 4 screens, 1 screen, etc. This is much faster than manually disabling/enabling/moving screens around. The only downside is that often the screen switching is destructive and all applications are closed and I have to log back in (even though I'm using SIGQUIT). But at least I can now easily change the screen configuration.
Thanks to the users for these helpful posts: