New to Linux

[Noctosphere]

Appimages

Appimages are as close (in functionality and reliability ) to a normal windows .exe. just double click and run. If it doesn't work like that for some reason. Install fuse2.
Their problem however is that they include every dependency, bloating up the file size, and it also means it's on the developer to make sure up to date depencies are shipped with the file. Otherwise you might get a security exploit.

So, if I double click an .appimage , what's supposed to happen exactly? Because, from my point of view, nothing "happens", only my hard drive starts working like crazy (100% usage), but nothing happens on the surface (no installation process, no pop up, no confirmation, no target directory, nothing). Is it normal?

Post automatically merged: Nov 23, 2025

Also can you inform of us of what commands you used earlier? On most file managers control + h should show hidden files.

And you can see a .bashhistory or something like that. And that should show everything you ran.

Asking in case it changed something important and none of us know

No .bashhistory

Post automatically merged: Nov 23, 2025

No. just no.

You can install the program very easily. You can use the software centre. Not only that, but you can use a download file. Which ends with deb file extension.


Which software do you want to install?

I only have a .appimage, no .deb for this one

 

[emigre]

So, if I double click an .appimage , what's supposed to happen exactly? Because, from my point of view, nothing "happens", only my hard drive starts working like crazy (100% usage), but nothing happens on the surface (no installation process, no pop up, no confirmation, no target directory, nothing). Is it normal?

right click on it , select properties and there should be an option to make it executable (or something along those lines), make sure that's ticked.

 

[Noctosphere]

right click on it , select properties and there should be an option to make it executable (or something along those lines), make sure that's ticked.

yes, it is ticked

 

[Reualed]

yes, it is ticked

Then it sounds like fuse is not installed.


For context of what it's supposed to look like. It's like some of those portable .exes on windows. Where you just double click and the program runs. No installer.

Can you test a different appimage? Try RMG. If that works then that's good. If it doesn't work...

Usually the best case scenario for debugging this, is to actually toss the .appimage into the terminal.

You should be able to do that with opening whatever terminal you have, and dragging the file over. Or navigating to the folder the appimage is in with cd.

So something like
cd /home/(username)/Downloads
Then ./applicationname.appimage


See what error it spits out. if you want to we can have you copy the whole log into a text file and we'll look it over.

Hopefully it will just simply state (if it doesn't work) that fuse is not installed. And that can be an easy fix.

I am so sorry that you having a rough first time.

 

[Noctosphere]

Then it sounds like fuse is not installed.


For context of what it's supposed to look like. It's like some of those portable .exes on windows. Where you just double click and the program runs. No installer.

Can you test a different appimage? Try RMG. If that works then that's good. If it doesn't work...

Usually the best case scenario for debugging this, is to actually toss the .appimage into the terminal.

You should be able to do that with opening whatever terminal you have, and dragging the file over. Or navigating to the folder the appimage is in with cd.

So something like
cd /home/(username)/Downloads
Then ./applicationname.appimage


See what error it spits out. if you want to we can have you copy the whole log into a text file and we'll look it over.

Hopefully it will just simply state (if it doesn't work) that fuse is not installed. And that can be an easy fix.

I am so sorry that you having a rough first time.

QCoreApplication::applicationDirPath: Please instantiate the QApplication object first
QCoreApplication::applicationDirPath: Please instantiate the QApplication object first

This is the error message I get.
PS: It is not a mistake, the message really appeared twice.

Also, I figured that it wouldn't be as simple as windows, but when you are told "yea it's just like windows" well, you kinda expect it to be "just like windows" you know
Anyway, back to previous expectation of "it won't be that simple" and "I'll have to tweak a few things to get it running", that's all

 

[emigre]

Speaking as a relatively newish linux user myself, I'm starting to think something has gone wrong with your install. I used Mint until recently and didn't have these issues.

With games not loading, have you been able to install your drivers? Nvidia GPUs can cause issues. I know PopOs is quite good in this regard. I wonder if trying out one of the more gaming focused distros will make it easier.

 

[Noctosphere]

Speaking as a relatively newish linux user myself, I'm starting to think something has gone wrong with your install. I used Mint until recently and didn't have these issues.

With games not loading, have you been able to install your drivers? Nvidia GPUs can cause issues. I know PopOs is quite good in this regard. I wonder if trying out one of the more gaming focused distros will make it easier.

I heard of PopOS, but was reluctant to use it. I saw a few thread about it saying it was no longer supported (they were a few months old though, maybe it is an outdated info?)
As for NVidia drivers, yes, I did install them. I used the "launcher" if I remember correctly (By launcher, I mean a pop up windows when I first opened Linux)

 

[AncientBoi]

I heard of PopOS, but was reluctant to use it. I saw a few thread about it saying it was no longer supported (they were a few months old though, maybe it is an outdated info?)
As for NVidia drivers, yes, I did install them. I used the "launcher" if I remember correctly (By launcher, I mean a pop up windows when I first opened Linux)

yea, I got those on my first go at it.

 

[emigre]

I heard of PopOS, but was reluctant to use it. I saw a few thread about it saying it was no longer supported (they were a few months old though, maybe it is an outdated info?)
As for NVidia drivers, yes, I did install them. I used the "launcher" if I remember correctly (By launcher, I mean a pop up windows when I first opened Linux)

PopOS is very much supported, theyre working on their new desktop environment.

I'm thinking because you have a new GPU, Mint isn't fully supporting it out of the box despite it installing drivers upon installation. Mint is stable because it's not continuously updated like Arch. I know I had to go into the command line to make Mint to recognise I had a RX9070. I'm thinking that using one of the more updated distros might be a better experience like CachyOs (Arch) or Fedora. I switched to Nobara (Fedora based) yesterday and wouldn't say the experience has been any tougher to when I was using Ubuntu, Mint or Pop OS.

 

[Noctosphere]

PopOS is very much supported, theyre working on their new desktop environment.

I'm thinking because you have a new GPU, Mint isn't fully supporting it out of the box despite it installing drivers upon installation. Mint is stable because it's not continuously updated like Arch. I know I had to go into the command line to make Mint to recognise I had a RX9070. I'm thinking that using one of the more updated distros might be a better experience like CachyOs (Arch) or Fedora. I switched to Nobara (Fedora based) yesterday and wouldn't say the experience has been any tougher to when I was using Ubuntu, Mint or Pop OS.

Ok, I thought they said it hadn't receiveds updated in months (since last year iirc)
Anyway, what would you recommend? PopOS? Or an Arch-based distro?

Also, out of curiosity, is it normal for "linux-people" to change of distro every now and then?
Or maybe I should keep changing of distro until I find one that better suits my needs?

 

[VinsCool]

Things that did not work probably means some libraries are not installed.

Usually launching something through the terminal will print out exactly what is missing so you could then install what is missing and try again after that.

 

[Noctosphere]

Things that did not work probably means some libraries are not installed.

Usually launching something through the terminal will print out exactly what is missing so you could then install what is missing and try again after that.

QCoreApplication::applicationDirPath: Please instantiate the QApplication object first
QCoreApplication::applicationDirPath: Please instantiate the QApplication object first

That's the error message I got when dragging the .appimage in terminal
It's not a mistake, the message really did appear twice.

 

[emigre]

Ok, I thought they said it hadn't receiveds updated in months (since last year iirc)
Anyway, what would you recommend? PopOS? Or an Arch-based distro?

Also, out of curiosity, is it normal for "linux-people" to change of distro every now and then?
Or maybe I should keep changing of distro until I find one that better suits my needs?

I've been using Linux full time for about 3 months and I'm on my fourth distro. Distro hopping is a thing! Plan to do it until I find something I really like.

You might want to try one of the more gaming focused ones. Bazzite was recommended to me as an easier one to use, haven't used it myself but give it a go. Nobara has been a pleasure to use other than issues with waking from sleep, which I'm trying to work out.

 

[Noctosphere]

I've been using Linux full time for about 3 months and I'm on my fourth distro. Distro hopping is a thing! Plan to do it until I find something I really like.

You might want to try one of the more gaming focused ones. Bazzite was recommended to me as an easier one to use, haven't used it myself but give it a go. Nobara has been a pleasure to use other than issues with waking from sleep, which I'm trying to work out.

I see, so finding the best distro for one is pretty much a "trial and error" thing?

What exactly is a "gaming distro" or rather, what is the main difference between one gaming distro and another? Is it only the GUI that change? Or services installed along it? If that's the only main difference, then it would already narrow a bit my search for finding the best distro. But if there is something else (one can easily break if you install something, or you basicly can't install anything on another), I guess it would be harder to find then

 

[emigre]

I see, so finding the best distro for one is pretty much a "trial and error" thing?

What exactly is a "gaming distro" or rather, what is the main difference between one gaming distro and another? Is it only the GUI that change? Or services installed along it? If that's the only main difference, then it would already narrow a bit my search for finding the best distro. But if there is something else (one can easily break if you install something, or you basicly can't install anything on another), I guess it would be harder to find then

Gaming performance on Linux distros won't vary that much. It's more on the software side, it's more user friendly to set up things like installing steam, wine etc during the setup process. it's ultimately more streamlined, it will still have a desktop but there's less effort and stress especially if you're new to Linux.

 

[Noctosphere]

Gaming performance on Linux distros won't vary that much. It's more on the software side, it's more user friendly to set up things like installing steam, wine etc during the setup process. it's ultimately more streamlined, it will still have a desktop but there's less effort and stress especially if you're new to Linux.

I know this might sound stupid, but it's a legit question.
Would SteamOS be good for general/creative purposes? Or is it "only" good for gaming?

Post automatically merged: Nov 23, 2025

While rebooting, I noticed something that might explain what's wrong. I've got three OSes right now. I though I uninstalled windows, but...
Well, I've still got the Windows Boot Manager (sdd1), Linux Mint 22.2 Cinnamon (no sdd shown) and Linux Mint 22.2 Zara (22.2) on sdd5

Any ideas? Should I proceed to PopOs installation?

 

[VinsCool]

QCoreApplication::applicationDirPath: Please instantiate the QApplication object first
QCoreApplication::applicationDirPath: Please instantiate the QApplication object first

That's the error message I got when dragging the .appimage in terminal
It's not a mistake, the message really did appear twice.

Do you have QT libraries installed, by any chance?

 

[Noctosphere]

Do you have QT libraries installed, by any chance?

No idea xD

About that "triple Oses", could that pose problems?

 

[VinsCool]

No idea xD

About that "triple Oses", could that pose problems?

No, very unlikely if they don't overlap into the same partitions after being installed.

 

[Noctosphere]

No, very unlikely if they don't overlap into the same partitions after being installed.

So, I just tried to install qt library using this method

sudo apt install --install-recommends qtcreator
sudo apt install build-essential libgl1-mesa-dev

I then tried to install Citron, using the appimage.
Again, nothing happened, and when dragging it onto terminal, I still get these same error

QCoreApplication::applicationDirPath: Please instantiate the QApplication object first
QCoreApplication::applicationDirPath: Please instantiate the QApplication object first