I'm using SliTaz 4.0 on VirtualBox, and have installed the GuestAddon per instruction from:
Further more, glxinfo returns Chromium direct rendering.
However, when I try to playback video (flv, mp4) with VLC, I got only half-sized greyscale video, like this
which even a slightest resize will turn it to garbage, like this
How can I fix the issue?