An engineer's life around Kyoto

 On December 6, Debian 11 installer alpha 3 has been released. As I wanted to install Debian to my new laptop machine Panasonic CF-SV9, I tried it. The result: fine. Debian 11's Gnome desktop environment is running on my new machine now. I am keeping pre-isntalled Windows 10 pro, and the machine is  Windows and Linux dual booting machine. The installer seems matured, inspite of its version name. But there is one drawback remaining. The circular pad built-in is not working correctly inspite of xorg synaptics input device settings written in /etc/X11/xorg.conf. It may be caused that the graphic is now under control of wayland, in place of  Xorg server in my buster machine. If you want to follow me, please take care of Windows 10's  BitLocker. It will demand recovery key after your installation of Debian. Take some backups of the recovery key before hand.

Just a report of a hardware device usage for reminder.   EPSON EP-977A3 is a multi-functional peripheral for personal use once sold in Japanese market.   It has color printer, color flat-bed scanner, USB memory RW capability with USB and both wired and wireless LAN connectivity.  With the simple-scan software, whose package name is 'simple-scan' in Debian 10, I am able to scan documents from the flat-bed scanner of EPSON EP-977A3 connecting with my Debian box with an USB cable.   But when I tried to start scanning on the control panel of the scanner device, I got error with a message saying "The computer is not ready". I guessed if the scanned package for that purpose and installed it. Still, I got the same error message. Hmm... I need more research.

I own a quite old laser printer, Canon LBP-350 sold in Japanese market. It has both Centronics parallel port and USB port. I used to connect it and my Linux desktop machine with the parallel port, but my current main Linux box does not have parallel port. So, I once tried to connect the laser printer with the current main box using USB, but it didn't work. Today, I tried again , but it didn't. I checked how the Linux box was seeing the printer over USB bus using lsusb command as follows: # lsusb -t /: Bus 07.Port 1: Dev 1, Class=root_hub, Driver=ohci-pci/2p, 12M /: Bus 06.Port 1: Dev 1, Class=root_hub, Driver=ohci-pci/3p, 12M /: Bus 05.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/6p, 5000M |__ Port 2: Dev 2, If 0, Class=Mass Storage, Driver=usb-storage, 5000M /: Bus 04.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/5p, 480M |__ Port 3: Dev 4, If 0, Class=Mass Storage, Driver=uas, 480M /: Bus 03.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/14p, 480M |__ P