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Archive for the Category: Linux
How to fix hiDPI issues when installing OpenSuse 42.2 Leap RC1in five steps
I have purchased ASUS Zenbook UX305. It is a good Ultrabook which good Linux support and hiDPI screen. Unfortunately the support of hiDPI screens in modern Linux distributions is still lacking. Thus I decided to write down this post to help others struggling with similar problems when installing OpenSuSE on laptops with high definition resolution […]
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QtMultimedia, FFMpeg, Gstreamer: comparing multimedia frameworks
Update Feb 7, 2019: despite being written ten years ago and last updated three years ago, this article content remains correct, and still describes the actual situation with the multimedia frameworks. During the last few years I had developed several multimedia applications. The applications were open-source, free and cross-platform, and therefore they needed the multimedia […]
Usability of Qt5 QMediaPlayer for multimedia applications
I have developed several multimedia applications using Qt4 and Qt5. In past, when creating Karaoke Lyrics Editor with Qt4, I initially used Phonon, which was offered by Qt4 multimedia framework. Unfortunately I quickly found the issues with this framework, making it less useful for my purpose:
Also posted in qt 2 Comments
Mac OS X guest and VirtualBox 5 on AMD CPU
Before you proceed: there is NO working solution yet, and I was not able to run unmodified Mac OS X guest on AMD CPU under VirtualBox. It runs fine under KVM however. Installing it on a machine with Intel CPU is not a problem. While VirtualBox does not officially support OS X guests on non-Mac […]
Also posted in virtualbox Comments Off on Mac OS X guest and VirtualBox 5 on AMD CPU
select / poll / epoll: practical difference for system architects
When designing a high performance networking application with non-blocking socket I/O, the architect needs to decide which polling method to use to monitor the events generated by those sockets. There are several such methods, and the use cases for each of them are different. Choosing the correct method may be critical to satisfy the application […]
Tagged epoll, poll, portability, select
28 Comments
Failed to load steamui.so ?
Recent Steam update switched it to SDL2, so unless you have the very latest libSDL2 installed, you’ll get an error while trying to load Steam: Fatal error: Failed to load steamui.so The short test will quickly tell you the problem: LD_LIBRARY_PATH=$HOME/Steam/ubuntu12_32 ld $HOME/Steam/ubuntu12_32/steamui.so which will print a bunch of lines starting from: ld: warning: libSDL2-2.0.so.0, […]
Installing Steam at the unsupported Linux which is not Ubuntu
Today at Feb 14th Valve released Steam for Linux. At this moment it officially only supports Ubuntu. However it is easy to run it on any other Linux distribution, in my case at OpenSuSE 12.2.
Also posted in Steam Comments Off on Installing Steam at the unsupported Linux which is not Ubuntu
Your personal GMail-like mail system: Sieve support
Dovecot has built-in support for the Sieve mail filtering language. It is very useful to do the server-side email processing such as: Removing unwanted e-mail messages before they are delivered to your inbox; Copying or moving e-mail messages to different folders; Creating vacation autoresponses or any other kind of autoresponses Configuring the actions above depending […]
Also posted in Email Tagged dovecot-lda, getmail, sieve
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Your personal GMail-like mail system: the web interface
So you got the system which is as good as GMail, but you also want to have the Web interface. This comes handy when you’re in the middle of changing e-mail clients, or you’re traveling without your laptop and want to check your e-mail from the public Internet cafe. So you want to have the […]