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Kubuntu 20.04 LTS 0. keys. put keys in $HOME/key folder (optional) make sure private key files permission is 400 or 600. (required), and file extension is ".key". 1. install ksshaskpass (mine is installed) $ sudo apt install ksshaskpass 2. add keys $HOME/.config/autostart-scripts/load-keys.sh file content: #!/bin/bash export SSH_ASKPASS=/usr/bin/ksshaskpass SSH_ASKPASS=/usr/bin/ksshaskpass ssh-add ~/key/*.key </dev/null Run this script manually once. It will ask for password if key file is password-protected, and it can save the password in kwallet so you won't need to input it again. 3. make load-keys.sh executable $ chmod +x $HOME/.config/autostart-scripts/load-keys.sh 4. load ssh-agent (not required on mine) (make it executable too) $ cat ~/.config/plasma-workspace/env/ssh-agent-startup.sh #!/bin/bash [ -n "$SSH_AGENT_PID" ] || eval "$(ssh-agent -s)" Reference https://newbedev.com/using-ssh-agent-with-kde https://dev.to/manekenpix/kde-plasma-s...

1. install xpadneo driver/utilities $ sudo apt install dkms git linux-headers-`uname -r` $ git clone https://github.com/atar-axis/xpadneo.git $ cd xpadneo/ $ sudo ./install.sh  $ sudo apt install joystick $ sudo aptitude install jstest-gtk $ jstest-gtk  2. memlock setting add these two lines to /etc/security/limits.conf or /etc/security.conf, reboot. * hard memlock unlimited * soft memlock unlimited 3. download rpcs3 4. download PS3 firmware

Device i2c number $ sudo ddccontrol -p | grep /dev/  - Device: dev:/dev/i2c-8 this is the device i2c number. switch input source $ sudo ddccontrol -r 0x60 -w 4883 dev:/dev/i2c-8 -r 0x60: this is the input source switch. 4883: target port. DP1  15 or 4879 DP2  16 or 4883 HDMI1  17 or 4881 HDMI2  18 or 4882 USB-C 4891 read current value $ sudo ddccontrol -r 0x60 dev:dev/i2c-8 you can get the current value this way, if you have a different monitor model. Reference https://github.com/ddccontrol/ddccontrol-db/blob/master/doc/how-to-add-a-monitor.md https://askubuntu.com/questions/860761/ubuntu-command-line-to-change-input-source-on-a-display-monitor

GPT: GUID分区表。 ESP: EFI System Partition. It is the place where UEFI will look for a boot loader. 一个专用分区，UEFI 会从这类分区搜索boot loader。 NVRAM: 是BIOS ROM中的一段区域，一般定义为64k byte, 现在EFI把所有的变量都存在这里。 boot loader: 启动引导器。让机器知道真正的要启动的系统所在。GRUB (grubx64.efi)，Windows (bootmgfw.efi)，SYSLINUX (syslinux.efi)，都属于boot loader。 /EFI/Boot/bootx64.efi: UEFI fallback boot loader path，默认引导器路径。完整路径是\EFI\BOOT\BOOT{machine type short-name}.efi。当计算机没有引导条目或已存条目均无效时，尝试加载此文件。LiveCD和安装盘等就会用到这个文件。本文件其实就是grubx64.efi或者bootmgfw.efi，区别就是默认和指定的。 efibootmgr/Bcdedit: manipulate the UEFI Boot Manager。 创建和修改引导条目，保存在NVRAM。一般用于永久安装的系统，如安装好的Windows 10，而非安装盘或者LiveCD系统等。 常用路径 \EFI\boot\bootx64.efi \EFI\Miscosoft\Boot\bootmgfw.efi \EFI\Ubuntu\grubx64.efi \EFI\Ubuntu\shimx64.efi (secure boot) 查看NVRAM引导设置的命令： Linux: sudo efibootmgr -v Win10: bcdedit /enum firmware 参考： https://www.jianshu.com/p/a35d42daf010 https://www.happyassassin.net/posts/2014/01/25/uefi-boot-how-does-that-actually-work-then/ https://wiki.syslinux.org/wiki/index.php?...