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Month: June 2018

  • Xrandr framebuffer and per-display scaling

    Ubuntu 18.04 LTS came out recently with Gnome desktop as default. Unfortunately even in 2018, it won’t remember the external monitor positioning after reboot and has no support in display settings to set per-display scaling. Year of the Linux desktop, anyone? Xrandr is a powerful Linux tool to manipulate displays. Unfortunately, the man page is…

  • Can JPA @Version column be nullable?

    When using @Version with yor JPA entities you might be wondering, should you make the column nullable or not? There is no answer to this question in the documentation or the internet in general. The only way to find out was to test it. The answer is: column has to be not-null, at least for…