GZDoom 2.4.0 launching issues

[Sidewicked]

OS, Architecture: Lubuntu 17.04, 64 bit
CPU, CPU Speed, System Speed: Intel(R) Core(TM) i3 CPU M 370 @ 2.40GHz, 2394 MHz, 1066 MHz (If any of this is important)

I downloaded GZDoom 2.4.0 through use of the "Synaptic Package Manager" System Tool, and placed "doom.wad" and "doom2.wad" in the respective folder, but when I attempt to run GZDoom 2.4.0 nothing happens. No processes what-so-ever. However, when I download GZDoom 1.9.0 it works like a charm (Aside from a weird texture bug on mods like Brutal Doom I could also need some insight on). Essentially, I need help getting this thing running...and hopefully properly. I would provide screenshots of the bugs but I don't know how.

[_mental_]

Probably the same issue as this one. Open Terminal and run the following command:

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gzdoom -iwad doom2

[Sidewicked]

Perfect, thanks. What would I need to add if I wanted to run it with a mod?

[_mental_]

Run any mod as usual but add -iwad command line switch followed by the corresponding IWAD name (optionally with .wad extension or even with full path):

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gzdoom -iwad doom2 -file this.wad that.pk3

[Sidewicked]

Works just fine.