Error opening 2.7 over remote desktop

[dan]

When attempting to use CC 2.7 over a Remote Desktop Connection there is an immediate error that does not allow the program to open. The error is the typical Windows "A problem caused the program to stop working correctly. Please close the program." with options to "Close the program" or "Debug the program." I've attempted combinations of re-installing and restarting the computer with no luck; however, logging directly into the computer the software works fine.

Cheers,
Dan

[daniel]

With the adoption of Qt 5.6, a lot of things have changed (especially with everything that deals with OpenGL).

With older versions, when you launch CC via remote desktop, what version of OpenGL and which graphic card manufacturer is displayed in the Console at startup?

cc_console_opengl.jpg (46.43 KiB) Viewed 8513 times

[dan]

Hi Daniel,

With updating to 2.7 we removed any previous versions. Opening CC 2.7 being logged directly onto the computer we have the following OpenGL and graphic card manufacturer:

[dan]

We found an old installation file for 2.6.2 that we were able to reinstall on our computer. When opening via remote desktop the console shows:

[daniel]

Ok, CloudCompare 2.7 requires OpenGL version 2.1 at least.

I wonder if remote desktop can 'emulate' OpenGL 2.1 instead of 1.1?

Meanwhile I'll try to prevent CC from crashing when running with lower version (and issue a proper error message instead ;).

[jedfrechette]

Hardware acceleration doesn't work with Microsoft's Remote Desktop client and the Geforce drivers. It looks like software opengl isn't implemented as a fallback any more in CC so it crashes.

The Quadro driver's do support hardware acceleration over remote desktop. Various third party remote desktop clients also support it with Geforce cards. If you start the opengl application from a local session then connect to it via remote desktop hardware acceleration will also work.

[daniel]

Thanks for the (valuable) info!