Hi all,

I've installed Debian Jessie 8.2 (32-bit) in VirtualBox on a Windows 7 Professional (64-bit) host. My Debian Jessie has 12 MB video with 3D acceleration enabled and 2 GB of RAM.

I'm displaying in 1024 x 768. (I do not know if guest additions is installed, I've been trying to install them without success so far).

I ran apt-get update and apt-get upgrade, and now when I launch any applications in Jessie they appear garbled.

The desktop itself appears fine, as does the app launcher. It's just the applications. (Please see attached screenshot). What can I try to fix this problem?

Attached Thumbnails

 

I run debian in a lot of vm's and have never seen that. Since the Window manager shows correctly it makes me think that some issue in debian is the problem as opposed to windows or virtualbox. Since you say you didn't get the tools to install then we could believe that the problem started there.

If you mean that you after some update this happened then we might be tempted to think some update caused it.

I get the feeling that you could try getting a new iso of debian or old one and test it's md5 or shal to be sure it is correctly loaded. Make a new test vm and install it and try to replicate the issue by updating one or a few of the updates at a time.

Usually I put a bit more ram for video.

Hi Jefro,

The VM was running perfectly fine for 5 months until I ran apt-get update and apt-get upgrade. I was not even able to get Debian to mount the Guest Additions tools ISO, so I didn't get that far along in the installation. So, I would agree with your assessment that some update caused it. However, there were a lot of updates so it would be much faster to just re-install.

I stupidly did not take a "snapshot" of the VM before I ran the updates (but there is no valuable data stored on the VM).

I tried going up to 64M video memory, but it didn't help.