dfu-util can be used to both read off and to flash (update) firmware on embedded devices, say for the firmware on a QMK-based keyboard like the Keychron V5 (about 50 KB). But it is very poorly documented. In most cases, the …
Flash utility ‘dfu-util’ gotcha: Always use option ‘-a 0’ Read more »
In February 2023, Canonical force updated Ubuntu 22.04 to HWE. This broke a lot of things, including the fix for USB 2 to work on some motherboards. A fix At this point, it is not known exactly what causes this …
Reverting back to the regular LTS kernel for Ubuntu 22.04 Read more »
The short version: ArcoLinux does not seem to install the required GRUB bootloader (file grubx64.efi) on some partitioning schemes, e.g., some combination of separate partitions (completely separate or some shared partitions). Thus the system can not boot. Booting into the …
The short version: As a new user, choose the ISO image “arcolinuxl-v23.03.01-x86_64.iso“ (2.4 GB. MD5 hash value BE43EE6827C285C610648793EFCFAF45). A new version, 23.03.01, of ArcoLinux (an Arch Linux derivative) was released. The official release date was 2023-03-01. As a new user, which …
The short version: With default BIOS settings (which enable USB 3 ports) for the Gigabyte GA-970A-DS3P motherboard, the USB 2 ports do not work (at least in Linux), only the two external USB 3 ports. In Linux, the GRUB configuration parameter “GRUB_CMDLINE_LINUX” …
Enabling both USB 3 and USB 2 ports for the ‘Gigabyte’ GA-970A-DS3P motherboard Read more »
The normal method of taking a screenshot in Linux (in Cinnamon, at least) does not work while selecting a menu command is in progress. Example from selecting menu “Sheet” → “Fill Cells” → “Fill Series” in LibreOffice: All keyboard input, …
Taking a screenshot of a menu in Cinnamon (Linux) Read more »
Krita seems like a good replacement for Microsoft Paint. It is sufficiently intuitive to use, even without any exposure to it before. I use such programs primarily to crop and add frames to screenshots. Even for that relatively simple task, …
Krita on Linux as the equivalent to Windows’ Paint Read more »
Although it is often somewhat hidden, most text editors, except for the most basic ones, have a column mode (also known as block mode or visual mode) – to work on rectangular selections of text (including a width of zero). …
Using the package manager in Ubuntu to install Emacs will result in some older version (version 26.3 on Ubuntu MATE 20.04 (Focal Fossa)). One way to get the latest version, currently 27.2 for the stable version, is to compile from …
Building Emacs from source on Ubuntu 20.04 in 2020 Read more »
UltraEdit for Linux is extremely buggy and corrupts the text documents. The corruption happens with using column mode, possibly worsened by using split windows (I mostly use vertically split). Column mode has always been buggy in UltraEdit, but in the …