As I previously mentioned, It seems to be an older card, that might not be supported by the drivers available, so those would probably be your best bet. To see if any others are supported, open a terminal and run:
mhwd --list
And provide the output here.
Tip:
To provide terminal output, copy the text you wish to share, and paste it here, surrounded by three (3) backticks, a.k.a grave accents. Like this:
```
pasted text
```
This will just cause it to be rendered like this:
Portaest sed
elementum
cursus nisl nisi
hendrerit ac quis
sit
adipiscing
tortor sit leo commodo.
Instead of like this:
Portaest sed elementum cursus nisl nisi hendrerit ac quis sit adipiscing tortor sit leo commodo.
Thereby improving legibility and making it much easier for those trying to be of assistance.
I believe you want/need the 340 driver, following these instructions might work for you:
In any case, as mentioned in that post, installing an unsupported driver adds a lot of extra work for yourself, it’s going to be up to you to remember to rebuild it every time the kernel is updated.
The installation is now complete. Is there anything additional I should be doing at this point?
Edit: I rebooted, however sleep mode is still not working. Also, screen tearing occurs while playing a video.
Indeed for screen tearing with Nvidia, enable the Composition (or Full) Pipeline in the Advanced Settings from the Nvidia Settings panel. The settings need to be then written to the /etc/X11/mhwd.d/nvidia.conf file i na normal setup, not sure which Xorg file it would use in your case (for that, reopen Nvidia Settings, and click the Save to X Configuration button, then browse to the file I mentioned, and save without merging, then reboot). You also need to select the proper refresh rate for the display (some monitors show multiple 60Hz for example, but only one is the perfect one for the monitor).
A friend of mine has this card (99% sure this is this one) and I don’t know why but after I removed the 340 drivers last year because of an issue we were trying to troubleshoot, MHWD started to give the option to install the 390 drivers for the card, and so far it works. The card is not compatible in theory but it works and is available in MHWD GUI.
Try the GUI to see if there is another option to install (it shouldn’t be but this was the case for my friend I think).
Probably because info are outdated in the thread he followed and he’s missing some steps. Here was a separate thread for the instructions, with more up to date info regarding Xorg (also you’re using Wayland that will probably be another issue even if you fix Xorg compatibility).
I think it may be necessary to disable or uninstall the Nouveau driver. If I do the installation in the link you gave, there may be a conflict with the previous nvidia packages I installed.
For example you can do sudo nano /etc/modprobe.d/nvidia.conf to create this file from terminal. Then you write the content of the file, then you press CTRL+X to save and exit, confirm by pressing Y and ENTER (read the screen at the bottom).