I have just bought an EV3A Nvidia GeForce GT 720 and I am trying to install the correct driver.
The SDB:Nvidia Drivers offers One Click Install for various cards but in the form 5XXX, 6XXX, 7XXX, 8XXX. None seem to correspond to the GT 720. Will this card work with 7XXX driver or another? How may I sort this out please. The link on the above SDB site to Nvidia cards does not list the GT 720.
Budgie2
It’s “Geforce 8 or later” 
Or install G04 with YaST or zypper (after adding the repo).
Btw, I already answered this in your other thread:
https://forums.opensuse.org/showthread.php/505952-How-Can-I-turn-Off-scrolling-effects-in-Dolphin?p=2701138#post2701138
Hi Wolfi,
Many thanks once more. Sorry I didn’t see that post until after I had posted the new question.
I have installed G03 and rebooted and now I still have Nouveau as driver and VGA resolution screen. Will uninstall G03 and try G04 but the resolution thing is odd as previously with nouveau the image was same as I am used to (can’t remember numbers but recognise when I see it!!!)
Budgie2
And how do you determine that you still use nouveau?
If you installed the nvidia packages, nouveau cannot work/be used.
And I hope you actually connected your monitor to the nvidia graphics card.
If you connect it to the mainboard, you will still use your onboard chip.
Hi Wolfi,
With G03 I ran same command as below but had back a line that both nouveau and nvidia kernel drivers were in use. Dont ask me how.
I knew this was nonsense so immediately installed G04 and uninstalled G03 and rebooted and now I get:-
alastair@x3400:~> /sbin/lspci -nnk | grep VGA -A2
10:00.0 VGA compatible controller [0300]: NVIDIA Corporation GK208 [GeForce GT 720] [10de:1288] (rev a1)
Subsystem: eVga.com. Corp. Device [3842:2722]
Kernel driver in use: nvidia
--
1c:04.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] ES1000 [1002:515e] (rev 02)
Subsystem: IBM Device [1014:0305]
Kernel modules: radeon
alastair@x3400:~>
Which seems to me as it should be.
The screen resolution has now also been corrected. In fact it is now 2048 x 1536 so I shall have to change or get reading glasses!
Bottom line is:- With your help I think I am out of the woods.
Best wishes and thanks again,
Budgie2
You can just change the font size. it is better that way since you get a clearer picture the higher the res.
That output is right but if you are not using the AMD GPU try turning it off in the BIOS it is just eating electricity.
With the proprietary NVIDA drive you cant really use the AMD anyway not even for a second monitor because NVIDIA modifies the X stack and it breaks things for other card types.
I’m sure you misread that… 
lspci also shows which drivers are available.
But only one can be “in use”.
alastair@x3400:~> /sbin/lspci -nnk | grep VGA -A2
10:00.0 VGA compatible controller [0300]: NVIDIA Corporation GK208 [GeForce GT 720] [10de:1288] (rev a1)
Subsystem: eVga.com. Corp. Device [3842:2722]
Kernel driver in use: nvidia
This means, nvidia is loaded and in use.
1c:04.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] ES1000 [1002:515e] (rev 02)
Subsystem: IBM Device [1014:0305]
Kernel modules: radeon
This means, radeon is available and would support this card, but it is not loaded/used.
Btw, with grep’s “-A2” option you might miss some information. This only displays the following 2 lines after the match, but lspci might print more than two lines for one particular device.
Which seems to me as it should be.
Yes.
The screen resolution has now also been corrected. In fact it is now 2048 x 1536 so I shall have to change or get reading glasses!
See gogalthorp’s reply.
Instead of changing all font sizes, you could also force a different Fonts DPI value in KDE’s font settings.
Choosing a lower resolution would be possible as well, but then you’ll typically get an unsharp picture on today’s monitors…