"vychytraly ." <vychytraly at gmail.com> wrote: > I forgot to write that the dots start to appear only inside "Desktop > Environment" (in my case Gnome), not for example in grub/bios. Today > I tried to install ubuntu 16.04 and the green dots appeared there too > (in Unity). Video BIOS isn't the same as the usual video graphics: https://en.wikipedia.org/wiki/Video_BIOS . I think that's still true with UEFI. In other words, I would suspect a hardware problem or a driver problem rather than a software problem. -- Yves Bellefeuille <yan at storm.ca>