Xfce Compiz doesn't start on first login

I installed Xfce4, Compiz and lxdm on my desktop computer running openSUSE 12.1. To start Compiz as the default WM I edited ~/.config/xfce4/xfconf/xfce-perchannel-xml/xfce4-session.xml and...

I can't install anything with apt-get on Ubuntu 14.04

The first problem is that I can't even post my question on askUbuntu! Second, my problem is, I can't install anything since a while via apt-get, I suspect it happened when I tried to install...

Python syntax explanation:

Would you please explain why this Python code works to a C programmer? This idiom works to retrieve a file list, recursively [os.path.join(dp, f) for dp, dn, fn in os.walk(os.path.expanduser(dir))...

RuntimeError: Attempting to deserialize object on a CUDA device but torch.cuda.is_available() is False, Dataloader Error, and setting pin_memory=False

I am a beginner trying to evaluate this video object segmentation network paper. When following the instructions on https://github.com/seoungwugoh/STM It says the requirements are as...