It's been a while since my last post on this blog due to an overloaded working schedule. However, now I found a good reason to write a new one and to share my experience with the world. Recently I've built…
Emerging Perl without Perl in Gentoo
One programming language that plays an important role especially in some Linux distro is Perl. In case of Gentoo, which is a source code base distro, dev-lang/perl is even more important than just another programming language. It is the language…
How to rotate even odd scanned PDF pages
Sometimes you need to scan a book page by page resulting a scanned PDF document. Usually you start with the first (odd) page then you turn your book and scan the other (even) page. Or you may start in reverse…
Xfce Desktop grey
If for some reasons or another you noticed that your Xfce desktop became grey out of a clear blue sky, nonetheless the mouse left-right click responding in a weird manner, you better read this first. First thing you tried was…
Creating a patch file in Linux
In the following I will show (1) how you can compile and install the Gimp GAP package from source code in Linux and (2) creating a patch file in Linux (Gentoo) that will help you to fix an issue found…
No running instance of xfce4-panel has been found
If you are using Linux with XFce4 desktop environment and you've got either a "No running instance of xfce4-panel has been found" or "Modifying the panel is not allowed" error message then probably you started digging on Internet for a…
Fan runs at full speed after resume
OK, let's suppose you have a PC (laptop/desktop) which runs the GNU Linux. Normally when you just step out to drink a coffee or smth. you suspend it in memory then you wake it up via resume. What to do…
Fix Firefox PGO on Linux
Background As of 2015-03-09 Mozilla Firefox is known as being the fastest web browser out there. Firefox is not only fast but it saves also more memory than Chrome although less than Opera. To make things better it is also…
Fix keyboard delay on KVM Windows guest
I have a KVM/Qemu 2.1.2 hypervisor installed on a Linux x86_64 system (kernel 3.18.8). On KVM I installed a Windows 2003 Server guest where usually I do my MS-SQL work. I noticed that while typing inside the Windows guest the…
sys-apps/systemd is blocking sys-fs/udev
While trying to update my Gentoo system with the latest libraries available on the portage sync servers I encountered a terrible conflict that drove me crazy. Finally I fix it and I thought it will be nice to share it…