Finally PPSSPP stable PPA built the latest 1.6.3 packages of the Sony PSP emulator for Ubuntu 18.04, Ubuntu 16.04, and Ubuntu 14.04.

PPSSPP reached the new major 1.6 series more than 4 months ago with following changes:

• OpenGL backend now properly multithreaded, giving a good speed boost.
• Various Vulkan performance improvements and memory allocation fixes.
• GPU command interpreter performance improvements
• Various fixes for app switching and widgets on Android
• Bugfixes and some performance improvements in the ARM64 JIT compiler and IR interpreter
• Shader cache enabled for Vulkan
• Multiple iOS fixes, including JIT and file browser.
• Improved compatibility on Mac
• Texture replacement ID bugfix (note: some textures from 1.5.4 may become incompatible)
• Adhoc multiplayer fixes
• Vulkan support on Linux/SDL
• Retroarch support

How to Install PPSSPP 1.6.3 in Ubuntu:

Open terminal either via Ctrl+Alt+T keyboard shortcut or by searching for ‘terminal’ from software launcher. When it opens, do following steps to install PPSSPP in all current Ubuntu releases.

1. Copy and paste the command and hit run to add the PPA:

sudo add-apt-repository ppa:ppsspp/stable

Type your password (no asterisks feedback) when it prompts and hit Enter to continue.

2. Then refresh your system cache and install the latest PPSSPP via commands:

sudo apt-get update

sudo apt-get install ppsspp

Replace ppsspp with ppsspp-sdl in the code for the SDL version.

Uninstall:

To remove the PPA, either go to Software & Updates -> Other Software or run command:

sudo add-apt-repository --remove ppa:ppsspp/stable

To remove PPSSPP, either use your system package manager or run command:

sudo apt-get remove --autoremove ppsspp ppsspp-sdl ppsspp-common