[Development] Class unable to view Qt5 Linux app

[from at alumni.stanford.edu]

Thiago,

Thank you for your reply. We are running the Linux app on a Cray
supercomputer. We need this computational power for the problems we are
seeking to solve.

Yes, we are ssh'ing into the RHEL 6 sever and forwarding the X11 connection.

Our sys admin had to install Qt5 for us to use the app and said that he
found the installation difficult. Is there any advice you might have for
installing Qt5 to help fix this problem?

Many thanks,

Bill


On sexta-feira, 8 de abril de 2016 18:28:25 PDT from at alumni.stanford.edu
wrote:

Dear Qt Developers,

I'm teach a class this quarter at Stanford where the main software package
we are using is a Qt5 Linux app running on RHEL 6. Students with Windows or
Linux laptops aren't having problems, but students with Macs are.

In particular, when the students try to do a copy, they get the error
message

QXcbClipboard::setMimeData: Cannot set X11 selection owner


Why are you running a Linux application on a Mac? Are you ssh'ing into the
RHEL 6 server and forwarding the X11 connection?

If so, I'd say that the X server that you have on those Mac is rather
defective. Instead, I'd recommend you compile the app for Mac and run
locally,
not on the server.

and the copy doesn't work. When they quit the application, they get the
additional message

QApplication::qAppName: Please instantiate the QApplication object first


We need a testcase for this.

-- 
Thiago Macieira - thiago.macieira (AT) intel.com
 Software Architect - Intel Open Source Technology Center
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