Only get a grey window

[G.M.]

I wanted to convert an iso image into a bootable USB stick, so I've tried to install unetbootin. I've tried it on multiple machines with various ubuntu or debian versions.

I only get an empty grey window!

I've searched a lot on many forums. Many people have the problem. I found some stuff about policikit, but none of the workarounds discussed on the forums worked for me.

Whatever the problem (be it a bug or a lacking/broken dependency) you should either resolve it or remove totally the support for this tools, because an out-of-the-box install unetbootin is currently totally useless...

[G.M. (sexxxenator)]

I finally found a (very inconvenient) workaround thanks to the guys @Arch:

https://bbs.archlinux.org/viewtopic.php?id=187234

sudo unetbootin &
(blank screen opens)

sudo QT_X11_NO_MITSHM=1 unetbootin
(new screen with correct display opens)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Ferdinand Prantl (prantlf)]

I can confirm, that this problem occured with the version of unetbootin (608-1) distributed with Ubuntu 17.10 as of today. Installing the latest unetbootin (657-1) from ppa:gezakovacs/ppa fixed the problem.

$ apt policy unetbootin

unetbootin:
  Installed: 657-1~artful1
  Candidate: 657-1~artful1
  Version table:
 *** 657-1~artful1 500
        500 http://ppa.launchpad.net/gezakovacs/ppa/ubuntu artful/main amd64 Packages
        100 /var/lib/dpkg/status
     608-1 500
        500 http://cz.archive.ubuntu.com/ubuntu artful/universe amd64 Packages

[dino99 (9d9)]

Fixed upstream (see #3 above confirmation); so closing that report.

[Ferdinand Prantl (prantlf)]

@dino99, are you planning to backport the fix to the Ubuntu 17.10 repository?

[Craig (craigalien0304)]

Same Problem on Ubuntu 18.04 Bionic
Installed Via PPA
Get Blank Screen
sudo QT_X11_NO_MITSHM=1 unetbootin
but is not Ideal

[Jeffrey Zheng (penguin360)]

Same problem for me too.

Installed Unetbooin via ppa and it worked for a couple of days and then out of a sudden, I get blank screen. Tried reinstall but no help.

[jvh (xtrajoris)]

I second what #6 says.
Same issue here on 18.04;
Installed via PPA
sudo QT_X11_NO_MITSHM=1 unetbootin
^works

Why is this still not fixed? :s

[bubba brooks (brooks-bubba)]

grey window only.

[Joe Lombrozo (djeebus)]

Ditto, ppa verion (661) on ubuntu 18.04

[fumandor (fumandor)]

Downloaded RPM package for Fedora 29. When running Unetbootin from launcher it requests root password. Once password is provided and "OK" is clicked it simply exits.
If program is run from terminal using command "kdesu unetbootin" only a grey screen appears.
I have succesfully run the program using the following procedure:

1.Open Terminal window
2.Type command $ kdesu unetbootin
3.The grey window with title UNetbootin appears
4.Open NEW terminal window
5.Type command $sudo QT_X11_NO_MITSHM=1 unetbootin
6.Type my user password
7.Program runs correctly

[Daniel Steven Connelly (danc2050)]

Ditto...still an issue. The solution jvh mentions works.

[Claudio (claudio-chaverri)]

Still happening on Ubuntu 18.04.2 LTS.
unetbootin:
  Installed: 667-1~bionic2
  Candidate: 667-1~bionic2
  Version table:
 *** 667-1~bionic2 500
        500 http://ppa.launchpad.net/gezakovacs/ppa/ubuntu bionic/main amd64 Packages
        100 /var/lib/dpkg/status

Workaround of jvh works