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QEMU/KVM with 3D accelerated desktop on Ubuntu

Posted by: Ernst Sjöstrand in linux, virtualization 3 years, 4 months ago

I've been try to get QEMU/KVM working with accelerated 3D desktop for a while but I've always run into trouble. Now that most standard desktop Linux images use 3D graphics, and also browsers, it's a bit annoying if you want to test something out in a VM and it's really slow.

How to install AMDGPU-PRO 16.40 on Ubuntu 16.10

Posted by: Ernst Sjöstrand in linux 4 years, 7 months ago

When AMDGPU-PRO 16.40 was released I had already upgraded to Ubuntu 16.10 which wasn't supported yet. And since you can't downgrade Ubuntu I would have to reinstall. Nah.. let's see if we can make it work on 16.10 anyway.

Where did .xsession-errors go?

Posted by: Ernst Sjöstrand in linux 4 years, 8 months ago

In the beautiful bliss of the systemd world, you can now find the logs of your session here!

How to monitor for new mounts on Linux (without polling)

Posted by: Ernst Sjöstrand in linux, programming, python 4 years, 8 months ago

When I was googling for this it was quite to hard to find so I thought I'd share. /proc/mounts doesn't publish a stream of events or something like that, the trick is to put the file in the "exceptfds" field. A "special exception" is triggered when it's updated and you can read it from scratch.