Since MacOS version 10.7 Lion, it has not been possible to use the ServerName option in the CUPS client.conf configuration to add a remote CUPS and skip the local CUPS server. Instead, printers are expected to be added via the Settings app. However, for some reason, adding the printer there did not work for me. [ ] The post Adding CUPS server to MacOS 10.7 or later without client.conf appeared…
For many years I have been using RT2870/RT3070 USB WiFi dongles and I was happy with them. They have great Linux support thanks to the ath9k_htc driver. But as number of IoT devices increased, one day one of them couldn t connect and hostapd was reporting errors like these: After 2 hours of reading ath9k_htc source [ ] The post RT2870/RT3070 ath9k_htc and maximum number of STAs appeared first on…
Capabilities are being used by many Linux-based software nowadays to limit what a process can do. But I think the documentation is a bit hard to grasp and I found some parts of capabilities implementation confusing so I decided to condense my current knowledge into a shorter article. The most important reference for capabilities is [ ] The post Linux Capabilities in a nutshell appeared first on…
Running android-studio on a Talos II ppc64 machine requires the aapt2 binary. That is currently only a part of the x86_64 build-tools, so I had to learn a way to run x86_64 executables on ppc64 cpu. The first option is full emulation (emulating x86_64 kernel and apps), the other is QEMU s user mode translation (emulating [ ] The post Running x86_64/amd64 executables on PPC64le IBM Power 9 Gentoo…
We all got Android devices without a proper manual so here are some basics I have learned over time It was taken from my internal notes so it s not very pretty but I decided to share it so it can help more people. I am not an Android expert, this is rather an introduction to [ ] The post Missing Android manual appeared first on K3A .
It is actually quite easy to boot Windows virtualized using KVM. But to properly use the UEFI bootloader, suitable QEMU arguments are required. Here is a lightly commented QEMU command I use to boot virtual Windows 10 I have on a separate partition. sudo qemu-system-x86_64 --enable-kvm -cpu host -m 2048 \-smp 4,sockets=1,cores=2,threads=2 -mem-path /dev/hugepages \-vga [ ] The post How to boot…
During my attempt to program an Atmel micro-controller to act as a remote controller sending RC5 commands, the original remote suddenly stopped sending the correct Standby code to the device and I noticed device ID part of the RC5 frame has changed from 0x10 into 0x11. I accidentally switched the original remote to a mode [ ] The post RC5 device addressees and commands are partly standardized…
After almost 2 years of using Telegram, I finally discovered that it is possible to enter emoji using its name after : character. Unfortunately I couldn t find any complete list of available emojis anywhere, so I had to dig deep into the Telegram desktop source code to generate it. It was far more complicated than [ ] The post Telegram emoji list with codes and descriptions appeared first on K3A .
I ve been using Samsung ML-2160 printer on Gentoo Linux for some time without problems but then I connected it to a box running Arch Linux and I some problems came up. It was printing almost completely black pages (with a few narrow white strips). I installed samsung-unified-driver-printer from AUR first and thought the problem is in [ ] The post Samsung printer problem on GNU/Linux (printing…
Facebook prý spojuje lidi a umožňuje být neustále s přáteli, aniž bych vystrčil nohu z baráku či postele. Facebook se tváří jako nejlepší kamarád a pomocník, že dělá pro nás to nejlepší. Ale je tomu opravdu tak? Facebook primárně dělá svůj business a uspokojení potřeb uživatelů je pro něj jen nutná práce navíc. Snaží se [ ] The post [cz] Proč je Facebook a Messenger špatný appeared first on K3A .