Multiple Display Quirks with X and Plasma 5
by Regnad Kcin from LinuxQuestions.org on (#5AS5V)
I notice in recent several months some problems with Plasma 5 and X when running multiple monitors (1 to 4 monitors is what I use routinely).
1. After reboot or restart of the system, the arrangement of the monitors is not retained and X defaults to an arrangement based on the plugin arrangement of the monitors in the videocard. If i am careful with the plugin order I can get the monitors in the proper right to left order but stacking has to be done on each restart.
2. The "primary" display gets confused and I have to fiddle with Nvidia-settings and system-settings to get the primary panel bar to appear on the display that I want it on. the selected display is not the one that the panel appears on but if i fiddle with the settings I can force it onto the place i want it.
3. Going from 3-4 monitors down to one, the panel bar is completely lost. This was quite alarming at first but I found that by adding back enough monitors i could get the panel bar back. The panel was still there all along but was on some other monitor in virtual space somewhere. On the road with my luggable box I can get by with fluxbox or xfce etc or i can add a provisional temporary panel on the desktop and delete it later.
So while I can get by it is an irritation. I would Read The Fine Manual but I dont know where to start with X stuff actually... My motherboard is a recent M-ITX with a gen9 i7 chip, 16gb ram, and a rtx2060 Gigabyte nvidia card. same problem with similar motherboard and older i7 chip i4770k and older gigabyte nvidia card (1060?) . Slackware current is up-to-date and i have the recent vtown update to plasma5. Nvidia drivers are new. Nouveau is not an option; for my usage it fails. this problem showed up in ktown a few months ago and since I had a way to get by I have just waited for it to be fixed in time by the kde crowd. Any ideas about how to configure X by hand to fix this?
1. After reboot or restart of the system, the arrangement of the monitors is not retained and X defaults to an arrangement based on the plugin arrangement of the monitors in the videocard. If i am careful with the plugin order I can get the monitors in the proper right to left order but stacking has to be done on each restart.
2. The "primary" display gets confused and I have to fiddle with Nvidia-settings and system-settings to get the primary panel bar to appear on the display that I want it on. the selected display is not the one that the panel appears on but if i fiddle with the settings I can force it onto the place i want it.
3. Going from 3-4 monitors down to one, the panel bar is completely lost. This was quite alarming at first but I found that by adding back enough monitors i could get the panel bar back. The panel was still there all along but was on some other monitor in virtual space somewhere. On the road with my luggable box I can get by with fluxbox or xfce etc or i can add a provisional temporary panel on the desktop and delete it later.
So while I can get by it is an irritation. I would Read The Fine Manual but I dont know where to start with X stuff actually... My motherboard is a recent M-ITX with a gen9 i7 chip, 16gb ram, and a rtx2060 Gigabyte nvidia card. same problem with similar motherboard and older i7 chip i4770k and older gigabyte nvidia card (1060?) . Slackware current is up-to-date and i have the recent vtown update to plasma5. Nvidia drivers are new. Nouveau is not an option; for my usage it fails. this problem showed up in ktown a few months ago and since I had a way to get by I have just waited for it to be fixed in time by the kde crowd. Any ideas about how to configure X by hand to fix this?