Mouse pointer freezes in Firefox

[buffalojoe]

I have just completed a clean install of Mint Cinnamon, everything went well until I installed the video card. The mouse pointer freezes and works very intermittently making navigation almost impossible. I have disabled the HW acceleration settings but no difference, I have changed the Nvidea drivers, no difference. There must be some options I am missing or some conflict I created, any help would be hugely appreciated.
Thanks in advance.

System: Host: kester-HP-Z230-SFF-Workstation Kernel: 4.15.0-24-generic x86_64
bits: 64 gcc: 7.3.0
Desktop: Cinnamon 3.8.7 (Gtk 3.22.30-1ubuntu1)
Distro: Linux Mint 19 Tara
Machine: Device: desktop System: Hewlett-Packard product: HP Z230 SFF Workstation serial: N/A
Mobo: Hewlett-Packard model: 1906 serial: N/A
BIOS: Hewlett-Packard v: L51 v01.33 date: 08/15/2014
CPU: Quad core Intel Core i7-4770 (-MT-MCP-)
arch: Haswell rev.3 cache: 8192 KB
flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx) bmips: 27137
clock speeds: max: 3900 MHz 1: 3392 MHz 2: 3407 MHz 3: 3484 MHz
4: 3405 MHz 5: 3891 MHz 6: 3416 MHz 7: 3845 MHz 8: 3897 MHz
Graphics: Card: NVIDIA GM107 [GeForce GTX 750 Ti] bus-ID: 01:00.0
Display Server: x11 (X.Org 1.19.6 )
drivers: nvidia (unloaded: modesetting,fbdev,vesa,nouveau)
Resolution: 1920x1080@60.00hz
OpenGL: renderer: GeForce GTX 750 Ti/PCIe/SSE2
version: 4.6.0 NVIDIA 390.48 Direct Render: Yes
Audio: Card-1 Intel 8 Series/C220 Series High Def. Audio Controller
driver: snd_hda_intel bus-ID: 00:1b.0
Card-2 NVIDIA Device 0fbc driver: snd_hda_intel bus-ID: 01:00.1
Sound: Advanced Linux Sound Architecture v: k4.15.0-24-generic
Network: Card-1: Intel Ethernet Connection I217-LM
driver: e1000e v: 3.2.6-k port: f040 bus-ID: 00:19.0
IF: eno1 state: down mac: <filter>
Card-2: Qualcomm Atheros AR9287 Wireless Network Adapter (PCI-Express)
driver: ath9k bus-ID: 03:00.0
IF: wls3 state: up mac: <filter>
Drives: HDD Total Size: 1000.2GB (6.6% used)
ID-1: /dev/sda model: Samsung_SSD_860 size: 500.1GB
ID-2: /dev/sdb model: ST500DM002 size: 500.1GB
Partition: ID-1: / size: 19G used: 13G (72%) fs: ext4 dev: /dev/sda1
ID-2: /usr size: 192G used: 4.9G (3%) fs: ext4 dev: /dev/sda6
ID-3: /home size: 183G used: 141M (1%) fs: ext4 dev: /dev/sda5
ID-4: swap-1 size: 50.00GB used: 0.00GB (0%)
fs: swap dev: /dev/sda2
RAID: No RAID devices: /proc/mdstat, md_mod kernel module present
Sensors: System Temperatures: cpu: 29.8C mobo: 27.8C gpu: 0.0:49C
Fan Speeds (in rpm): cpu: N/A
Info: Processes: 223 Uptime: 9 min Memory: 2083.3/31921.6MB
Init: systemd runlevel: 5 Gcc sys: 7.3.0
Client: Shell (bash 4.4.191) inxi: 2.3.56

[Hoser Rob]

Did you get the Nvidia driver from Mint Driver Manager? That's the most reliable way. Many newbies just dl them from the mfr's site, which is obvious in WIndows but not so much in Linux.

[buffalojoe]

Yes, update via the Driver Manager, although it has behaved usually. The first time I booted with the graphics card it was black screen only, I removed the graphics and card and it booted fine, fitted it again and esc to grub menu and it then booted ok. Checked Driver Manager and it was preselected on the 2nd option, chose the first and rebooted, since then it now defaults to the grub menu on every boot. Noticed the glitchy behavior in Firefox after checking the settings I used the driver manager to select the 2nd option on the list. Rebooted and checked Firefox, same behavior, thought I would reselect the top option for the driver but now it says I have a manually installed driver and I can no longer select any other option.
I hope you can all follow that chain of events.

[buffalojoe]

I think the problem was incompatible ram, the timings were correct but the latency was different and I don't think the HP mobo liked it. I only came to this conclusion after trying a Win10 install and having similar issues, I am cant say for sure as I still have some issues in my second attempt at a Mint install.