[double NVS 450] Freezing windows, cursor
I had 3 "NVIDIA NVS 300 Dual-VGA" with 6 monitors. I switched to 2 "NVIDIA Quadro NVS 450" cards for 8 monitors.
The picture is not smooth, ie the cursor is not smooth. Moving windows between monitors is not smooth. Sometimes it breaks the sound when I click on an item (window), or I receive an email in Thunderbird (when a notification balloon appears). Dialogs, startup, and context menu appear slowly.
The clicking window is activated with the delay. Occasionally the computer freezes. I need to do a hard restart.
My OS is Ach Linux:
Linux los 5.8.13-arch1-1 #1 SMP PREEMPT Thu, 01 Oct 2020 20:40:35 +0000 x86_64 GNU/Linux
I have installed packages:
xorg-server 1.20.9-2
xorg-xinit 1.4.1-2
xf86-input-evdev 2.10.6-2
xf86-input-mouse 1.9.3-1
xf86-input-keyboard 1.9.0-3
mesa 20.1.8-1
xf86-video-nouveau 1.0.16-2
xf86-video-vesa 2.5.0-1
xf86-video-fbdev 0.5.0-2
lspci | grep -e VGA -e 3D
05:00.0 3D controller: NVIDIA Corporation G98 [Quadro NVS 450] (rev a1)
06:00.0 VGA compatible controller: NVIDIA Corporation G98 [Quadro NVS 450] (rev a1)
09:00.0 3D controller: NVIDIA Corporation G98 [Quadro NVS 450] (rev a1)
0a:00.0 VGA compatible controller: NVIDIA Corporation G98 [Quadro NVS 450] (rev a1)
plasmashell --version
plasmashell 5.19.5
kf5-config --version
Qt: 5.15.1
Szkielety KDE: 5.74.0
kf5-config: 1.0
I have XRender turned on. Changing the mode (slow | fast) doesn't help.
I include dmesg and jounalctl -b