i'm using a really old pc right now. when i try to install nvidia drivers for this graphics card (8600m gt) after reboot ubuntu goes for a blinking cursor with black screen. after hours at forums went to root shell deleted and reinstalled 2 reccomended drivers (340 and 304) still boots black screen. only nouveau display drivers boots to ubuntu gnome but it's pretty laggy.
so i'm thinking about this graphics card not working well probably after years but that much? i can't even watch videos at 360p. my goal is using simple graphic programs and coding until my normal pc fixed
also i did a fan cleaning clean and apply new thermal paste and temperatures are near 55c.
do u have any reccommendation? i'm using ubuntu 16.04
edit:i clean installed 18.04 64-bit it didn't help. after installing nvidia-340 driver now it stuck on a black screen after reboot.
output of command mokutil --sb-state
EFI variables are not supported on this system
output of command lspci -vnn | grep VGA
01:00.0 VGA compatible controller [0300]: NVIDIA Corporation G84M [GeForce 8600M GT] [10de:0407] (rev a1) (prog-if 00 [VGA controller])
output of command lshw -c video
> -display UNCLAIMED
> description: VGA compatible controller
> product: G84M [GeForce 8600M GT]
> vendor: NVIDIA Corporation
> physical id: 0
> bus info: pci@0000:01:00.0
> version: a1
> width: 64 bits
> clock: 33MHz
> capabilities: pm msi pciexpress vga_controller bus_master cap_list
> configuration: latency=0
> resources: memory:fd000000-fdffffff memory:e0000000-efffffff memory:fa000000-fbffffff ioport:ef00(size=128) memory:c0000-dffff
output of command ls /sys/firmware/efi/
ls: cannot access '/sys/firmware/efi/': No such file or directory
nvidia-340 driver didn't work for me. i tried different versions too. it just stuck on a black screen after installing any nvidia driver. i used nomodeset when installing ubuntu. 5-6 times reinstalled drivers and os today.
i also have that output ubuntu-drivers devices
== /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0 ==
modalias : pci:v000010DEd00000407sv00001028sd000001F1bc03sc00i00
vendor : NVIDIA Corporation
model : G84M [GeForce 8600M GT]
driver : nvidia-340 - distro non-free recommended
driver : xserver-xorg-video-nouveau - distro free builtin
i think i'm using xserver-xorg-video-nouveau
