An engineer's life around Kyoto

A couple of months ago, I installed Microsoft Teams app in my Debian buster machine for a online meeting. The application worked fine, but it always started up automatically when launching the GNOME desktop environment. The behavior is quite annoying for me, because it take quite long time for the desktop to be ready for my normal use with the machine being rather old and its storage is HDD. But I couldn't find the settings or properties within the gnome-control-center setting items.  Today I find another way to stop automatic launch of the Teams app. Applying the patch below to the ~/.config/autostart/teams.desktop file would work fine: 12c12 < X-GNOME-Autostart-enabled=false --- > X-GNOME-Autostart-enabled=true Thanks to those blogs and articles: Gnome Desktop Entry Format extensions - bootlegged documentation ArchWiki 自動起動

 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...

When I'm home, I use fiber-optic line with a dedicated old small router (YAMAHA RT107e) for access to the Internet. But I recently became anxious about the router. If it fails, how can I survive until I get another one? So, I tried to connect my Debian desktop PC to the fiber-optic line without the router. The PC have to talk to the other side of the line with PPPoE but I did not know how. In my PC, the Network Manager manages network configuration. So, I had to configure the Network Manager to utilize the pppoe like : nmcli connection add ifname eth0 connection.type pppoe username USERNAME password PASSWORD

Now I'm on a vacation trip around Europe since June 6. I have been to Munich, and Rome. I enjoyed sight-seeing and popular museums there. It was great experience in my life. Now I am in Cluj-Napoca in Romania and joining to the open source software's community event 'DrupalDevdays Transylvania'. Yes, it's on Drupal, one of the most popular content management systems (CMS) released under open source license. Actually, I am new to not only Drupal but also to CMS. So, this is a good chance for me to get in touch with its comprehensive information and community members. Today's keynote session showed the history of CMS and the one of the possible directions coming to CMS market place. The keywords were non-web media and decoupling between front-end and back-ends. https://cluj2019.drupaldays.org/keynote-the-fourth-wave-of-the-content-management-system Another eye-catching session was 'The stage of Drupal 9', showing the life cycle of the current ...

I believe it's a lap-behind topic, but I came across with an idea that Git local repositories can be connected with each other over P2P network, in place of a centralized bare repository. And as I expected, several developers have already proposed such an idea and implemented some software: GitTorrent: https://blog.printf.net/articles/2015/05/29/announcing-gittorrent-a-decentralized-github/ Gitchain: http://gitchain.org/ .  I know almost nothing about them, but they seem to be fascinating. I wonder they could have caught more eyes since Microsoft acquired Github last year.