Which kernel are you runnig ? Current or lts ?
Whichever the current iso ships with. I'm sorry if I was unclear, I'm having the problem while booting the iso from stick. I use UEFI, also booted the stick in EFI mode. Wanted to install a dual-boot setup (on a seperate device though), but cant make it to GUI.
btw: Has Solus an option to install without GUI?
chiltepin Whichever the current iso ships with.
The current ISO, as far as I remember, ships with linux 4.something (4.2 ? Really don't remember)
The problem is, the current drivers are built against the latest current kernel in the repos, which is linux 5.x (not on Solus at the moment and I'm getting old, don't remember the exact version): if you try to install them on a linux 4 kernel, bad things happen.
Full update first, drivers later.
CorvusRuber Thanks for the help, much appreciated! Makes total sense so far, but some things are still not clear to me.
If I understood you correctly, I should (booted on stick, some tty) first eopkg upgrade to update the kernel.
chiltepin If I understood you correctly, I should (booted on stick, some tty) first eopkg upgrade to update the kernel.
Sorry, I wasn't clear enough.
You should install as usual from usb, boot from the installed system, and from there do a full system upgrade sudo eopkg up. Note, still no driver installation: only a system install.
After that, sudo reboot. If you can boot to a DE, run the Hardware Drivers utility (DoFlicky) and install whatever it proposes you. If you can't and must resort to a terminal, sudo eopkg install nvidia-glx-driver-current and then sudo reboot again.
You should boot to a full DE afterward
CorvusRuber Thanks again, but I guess I wasn't clear too. Maybe hijacking this thread was not a good idea ... 
You should install as usual from usb
Well, I can't, that's the point.
I'm trying to boot from usb, but I only get the blinking cursor (lightdm refuses to start). I tried installing the nvidia-glx drivers (with and without nomodeset), tried the nvidia-beta drivers, still nothing.
Your argument about the 5.x kernel must be it, as I was able to boot Ubuntu Budgie with 5.x kernel from usb (at least with the low graphics mode, so I could in theory install it. But I want Solus 
)
Is there any way to boot the current solus ISO from usb, but with a 5.x kernel?
CorvusRuber I don't think so.... I fear you'll have to wait for a ISO refresh.
Bummer. That makes me sad 
Guess that will be a while.
Anyways, thank you for your time!
Boot ISO from USB
Switch to TTY when it fails (Ctrl Alt F1-6, any will do)
Login
sudo eopkg it nvidia-glx-driver-current
sudo systemctl restart lightdmJustin Thanks, but I tried that already, also with the beta drivers. Lightdm still refuses to start.
Justin Not a Quadro in my case, sorry for thread-hijacking 
Thought that my case is pretty similar...
It's a Nvidia RTX 2070 Super, specifically a Gigabyte RTX 2070 Super Aorus Gaming OC
chiltepin Interesting as Zeb has a 2080Ti and he was able to install the drivers, then restart lightdm and get the GUI.
Edit: Maybe the super cards are different and not quite supported by the drivers yet. You tried the beta but did you try the developer drivers? I think they're even more experimental.
Justin Thank you, I didn't know about the dev drivers. But it has the same effect, no working GUI with eopkg it nvidia-developer-driver-current.
There is a nvidia-persistence service, which seems to be the main problem. Journal says, the service is unable to write to /dev/nvidia*, thus fails to start. I tried to set the group via chown, even tried chmod 777 with no success.
If it's interesting for you, I can upload some photos I made from the journal.
Any updates on this? I am also having the same issue, with not way to get past the terminal into the gui to install Solus. I am on the X570 platform with a Ryzen 3900x and a GTX 1080, other various threads with this issue claim you can fix it by installing nvidia drivers, but as @chiltepin has mentioned that has no effect, and neither does booting with nomodeset. This is an ongoing problem with Solus that needs to be addressed as it is unusable currently. I can provide logs or whatever devs need if anyone can take a look at this.
It is also weird, my solid live usb crashes 1st time due to nouveau error, second time I booted it it booted fine without nomodeset and I was able to install it, but now I am getting the nouveau crash every time I boot both the OS and the live USB.
nomodeset boots to the cursor, but Alt+f2 doesn't work, it won't open console, it stays at black screen
NKSHV Why don't you install the nvidia driver instead of using nouveau?
I found a solution: when it gives you the initial boot menu with solus and reboot to firmware, press e to edit solus entry, delete "quiet splash" and replace it with "noveau.nomodeset=0" and press enter
