Author Topic: Problem using SFML 2.0 Ubuntu VirtualBox (black screen) (Read 3625 times)

jkalmeij · « **on:** August 09, 2011, 10:59:19 pm »

Hey,
I built the latest version of SFML 2.0 on both Windows 7 and Ubuntu.

On Windows 7 I am able to properly run SFML programs. Linking is done dynamically.

On Ubuntu (virtual box; host Windows 7) I have a problem. The RenderWindow will remain black, no matter what I draw.
I tried both linking dynamically and statically, but got the same result.

I have an ATI videocard but it works on the Windows 7 host, and I read this was fixed in 2.0.

Any suggestions what I can do?

Laurent · « **Reply #1 on:** August 10, 2011, 07:50:00 am »

Can you show your code? Have you tried the SFML examples?

Are your drivers ok? Have you tried to run other OpenGL apps (like glxgears)?

jkalmeij · « **Reply #2 on:** August 10, 2011, 12:58:48 pm »

Quote

Have you tried the SFML examples?

Yes. The exact same code works under Windows but not under Ubuntu.

Quote

Are your drivers ok?

I was under the impression that I only had to install VirtualBox Guest Additions (more later*).

Quote

Have you tried to run other OpenGL apps (like glxgears)?

This is a good one. glxgears also gives me a black screen only (together with some terminal output; ~1000 FPS).
* After this I installed the ATI drivers: fglrx. Now I actually get segfaults when trying to execute glxgears, flgrxinfo, glxinfo (using gdb these trace back to fglrx, so I tried another fresh install, but no luck.).

I read conflicting stories about how OpenGL is / is not supported by VirtualBox. People report success when running a Windows guest in Linux host. My setup is the other way around (Windows host, Linux guest).

I have 3D acceleration enabled for the guest, together with 128MB graphical memory.

I guess the bottomline is, if anyone has a setup similar to mine and got it to work, could you please tell me what you did to achieve this?
Or if you know for a fact that it's not possible, please do tell

. In this case I will resort to installing Ubuntu alongside Windows.

Laurent · « **Reply #3 on:** August 10, 2011, 01:02:33 pm »

You're lucky because I have the exact same setup. However I don't remember doing anything special to get OpenGL to work on my Linux guest. But I have an nVidia card...

I think this is a driver issue, but I can't help you sorry. Maybe you can try to install the free ATI driver instead of the proprietary one.

jkalmeij · « **Reply #4 on:** August 10, 2011, 02:39:12 pm »

I didn't do anything special but it 'works' now.

I always run the virtualbox in fullscreen mode. Running in any other mode will cause the display of both OpenGL and SFML programs to work properly... dang

Perhaps a trivial reply but just throwing this out there for those with similar problems.