Can't launch ModelSim on Linux with Quartus 18.1 installation.

I don't remember exactly how I fixed it, but I have it documented somewher​somewhere. I'll come back and post it as soon as I can find it.

I'm sorry it took me so long to get back to you. You may have already found a solution, but I'll post it here anyway.

After installing the mentioned libraries, I also installed ncurses5-compat-libs from archlinux AUR. You can find equivalent libraries for other distros online.

After that, I edited the vco file in {INSTALLATION_PATH}/modelsim_ase/vco

first uncommented line reads:

mode=${MTI_VCO_MODE:-""}

which I changed to

mode=${MTI_VCO_MODE:-"32"}

also, I changed the lines where it was written:

vco="linux_rh60"

to

vco="linux"

finally, I added the line below to the beginning of the vco file:

export LD_LIBRARY_PATH={INSTALLATION_PATH}/lib32 where I had installed the previous libraries, as instructed by the archlinux wiki.

After that, I could run modelsim straight from the terminal.

To open model sim from GUI, I also had to add the same line above to the script qenv.sh located in {INSTALLATION_PATH}/quartus/adm/qenv.sh

this solved it for me.

I will update with a more detailed explanation at some point, but you might be able to fix your problem with that.

Best regards,

Guilherme Shimabuko