Category: Linux

Steps to (maybe) fix hardware graphics acceleration

Command to verify hardware acceleration (only works inside xorg session): Positive example:

Negative example (llvmpipe (LLVM 6.0, 256 bits) means it’s using software rendering):

Session type:

Make sure these are installed:

Kernel versions working:

Linux specific packages:

Run x11vnc on lightdm


New tool: Outgoing port checker

Yesterday I created a new tool, that let’s you check the firewall configuration of your network and other networks for outgoing open ports. Many public networks do not allow the full port range to be used and figuring out, which ports can be used and which cannot be used, may give you a hard time. […]