SWT_GTK3 problem when trying to run Linux mcuxpresso_ide via remote desktop?

[np]

I'm trying to remotely login to the desktop of our mcuxpresso headless build server Linux machine (which I've never done before). I'm able to ssh -X in, launch tightvncserver (having chmodded ~/.Xauthority), work out the port number from the log file, and then use Windows Remote Desktop to get VNC access to a grey desktop (via the port). Basically, I can get in and navigate the desktop (e.g. edit text files etc) OK, so everything is looking as though it ought to work.

However, when I try to right-click-launch mcuxpressoide from the desktop --> Applications --> Development, it silently refuses to start up. The vnc log file reports a single enigmatic error message:

env: ‘SWT_GTK3’: No such file or directory

So the problem is almost certainly that, like running mcuxpressoide from the command line, I need to set SWT_GTK3=0 (to force it to use GTK2 rather than GTK3). To do this, I suspect I need to edit some .ini file somewhere (maybe /ide/mcuexpresso_ide.ini ?) to forcibly set the environment variable SWT_GTK3=0, but I can't see where or how.

What am I missing here? Thanks!

[np · Accepted solution]

Hi Jennie,

Unfortunately, I had already tried all the tips and tricks in that webpage.

But luckily, I managed to work out how to make it work in a slightly different way. Here are the steps:

• ssh -X to the remote server
• tightvncserver
• cat the log file mentioned in the tightvncserver startup text, e.g.
  
  • 25/10/22 15:42:05 Listening for VNC connections on TCP port 5902
    Font directory '/usr/share/fonts/X11/75dpi/' not found - ignoring
    Font directory '/usr/share/fonts/X11/100dpi/' not found - ignoring
    No VNC extension on display :2
• From this log, you need the TCP port number (here = "5902") and display reference (here = ":2")
• Use Remote Desktop to login to the server (using the "vnc-any" option and the TCP port number)
• From the ssh terminal, launch MCUXpresso while also specifying the display on the command line, e.g.
  • DISPLAY=":2" SWT_GTK3=0 UBUNTU_MENUPROXY=0 /usr/local/mcuxpressoide-<version>/ide/mcuxpresso
    ide

I hope this helps anyone else who finds themselves stuck on this step!

Cheers, Nick

[ZhangJennie]

Hi 

Please check this FAQ

https://community.nxp.com/t5/LPCXpresso-IDE-FAQs/Installing-LPCXpresso-on-Linux/m-p/470769

it includes setting GTK3 which may help you.

Hope it helps,

Jun Zhang