I had a very similar problem. I also have the 6150SE n430 graphics that came with my computer. This card is a special case, where the Nvidia drivers do work better than the open source Nouveau.
However, you cannot install the Nvidia driver on Lite 4.0 series. This is becasue 4.0 is based on Ubuntu 18, and Ubuntu 16 is the last version that supports those graphics. but Lite 3.0 series will let you install it.
The driver is Nvidia 304.135. If you install Lite 3.0, after the first round of updates you will see it when you run the Install Drivers program. You can then select it and your system will then be on Nvidia drivers.
since doing this, Lite 3.8 has worked flawlessly for me, not one graphics-related issue. (I updated to 3.8 and it still is fine).
Lite 3.x series uses Linux kernel 4.4, which is the last one that will let you install that Nvidia driver. Once you go to the Ubuntu 18-based systems, the kernel changes to a newer one that does not support that driver.
See my thread here for more details. It's the one right below yours in Video Card section. I got some of my info from the Ubuntu forum, which confirmed that 6150SE n430 is indeed a special case. most other cards from that era do fine with Nouveau, but not that one.
The good news is that Lite 3.8 is supported until April 2021, so you can use it with confidence.
However, you cannot install the Nvidia driver on Lite 4.0 series. This is becasue 4.0 is based on Ubuntu 18, and Ubuntu 16 is the last version that supports those graphics. but Lite 3.0 series will let you install it.
The driver is Nvidia 304.135. If you install Lite 3.0, after the first round of updates you will see it when you run the Install Drivers program. You can then select it and your system will then be on Nvidia drivers.
since doing this, Lite 3.8 has worked flawlessly for me, not one graphics-related issue. (I updated to 3.8 and it still is fine).
Lite 3.x series uses Linux kernel 4.4, which is the last one that will let you install that Nvidia driver. Once you go to the Ubuntu 18-based systems, the kernel changes to a newer one that does not support that driver.
See my thread here for more details. It's the one right below yours in Video Card section. I got some of my info from the Ubuntu forum, which confirmed that 6150SE n430 is indeed a special case. most other cards from that era do fine with Nouveau, but not that one.
The good news is that Lite 3.8 is supported until April 2021, so you can use it with confidence.