inxi -Gx gives
Graphics:
Device-1: NVIDIA GK107 [GeForce GTX 650] vendor: ZOTAC driver: nouveau v: kernel
bus ID: 01:00.0
Display: x11 server: X.org 1.20.8 driver: nouveau unloaded: fbdev,modesetting,vesa
resolution: <xdpyinfo missing>
OpenGL: renderer: NVE7 v: 4.3 Mesa 20.0.6 direct render: Yes
I ran
sudo zypper addrepo --refresh
https://download.nvidia.com/opensuse/tumbleweed NVIDIA
It said that repository NVIDIA is out of date and to run
sudo zypper refresh
Then, use Yast2 to install the driver. It will take 8 min.
Reboot the PC.
inxi -Gx gives
Graphics:
Device-1: NVIDIA GK107 [GeForce GTX 650] vendor: ZOTAC driver: nvidia v: 440.82
bus ID: 01:00.0
Display: x11 server: X.org 1.20.8 driver: nvidia
unloaded: fbdev,modesetting,nouveau,vesa resolution: <xdpyinfo missing>
OpenGL: renderer: GeForce GTX 650/PCIe/SSE2 v: 4.6.0 NVIDIA 440.82
direct render: Yes
Now, when I move a window, it does not lag. The tearing, I think it is gone.
I will mark this as SOLVED.
Thanks ferrari!