Bluetooth audio tweaks for increased functionality
This fork of pulseaudio-bluetooth-modules adds LDAC, APTX, APTX-HD, AAC support, extended configuration for SBC
OpenSUSE packages https://build.opensuse.org/package/show/home:sonaj96/pulseaudio-modules-bt https://software.opensuse.org/package/pulseaudio-modules-bt?search_term=pulseaudio-modules-bt
To verify what you are using:
When you pair your headphones, choose AD2P profile in sound settings. Then you can check if aptX is used:
pactl list | grep a2dp_codecThe response should look something like this:bluetooth.a2dp_codec = "APTX"The rest of codecs should behave similarly.
(bluetooth devices sometimes need this)
Copy the configuration file to user-config space:
cp /usr/share/pipewire/pipewire.conf /etc/pipewire/pipewire.conf
Uncomment and add/edit desired sample rates.
default.clock.allowed-rates = [ 44100, 48000 ]
https://www.linuxtv.org/wiki/index.php/Hauppauge_WinTV-HVR-2250## HVR2250 firmware installation
You already have the firmware files extracted at:
/storage/share/Downloads/hauppauge 2250/
so from that directory:
cp *fw /lib/firmware
InkCut! 2019/10
https://codelv.com/projects/inkcut/
Installation
fedora: (tested working Fedora 37 & 38)
dnf in python3-{qt5,pyside2,cups,pip,setuptools,wheel} qt5-qtsvg cups-devel
pip3 install inkcut
fedora39: uses python-3.12 which (as of 2023/12) boogers inkcut’s python installation.
Options are to install InkCut into a VM or container (Podman/Distrobox) running something less current (like AlmaLinux)
»Detailed here«
opensuse:
zypper in python3-{pip,qt5,pyside2,service_identity}
pip3 install git+https://github.com/codelv/inkcut.git
Cutter Setup: PII-60
| Model | PII-60 |
|---|---|
| Max.Cutting Width | 590mm(23.23in) |
| Max.Media Loading Width | 719mm(28.3in) |
| Max. Cutting Speed | Up to 600 mm /sec (23.62 ips) |
| Data Buffer Size | 4MB |
| Interfaces | USB 1.1 & Parallel (Centronics) & Serial (RS-232C,9600 baud) |
| Commands | HP-GL, HP-GL/2 |
Setup Notes
Serial connection may return /dev/ttyS0: Permission denied unless user added to dialout group. details
Cutters with a parallel interface (either a ‘real’ parallel port or using a built-in parallel-to-USB converter) must be added to your system as a printer before using them from Inkcut. Start your printer configuration utility (e.g. system-config-printer), which at least when connecting via USB should detect the connected cutter. Proceed to add it with the ‘Generic’ ‘Raw Queue’ driver.
Laptop, 2019/12
Bios update
genisoimage? unverified)Install geteltorito
zypper in geteltorito*.noarch.rpm
Convert the (El Torito formatted) ISO to IMG
geteltorito -o bios.img downloaded.iso
Write IMG to USB
dd if=bios.img of=/dev/sdX status=progress
How to create an ISO disk image from a CD-ROM, DVD or Blu-ray disk https://www.cyberciti.biz/tips/linux-creating-cd-rom-iso-image.html
First get blocksize. I am using /dev/dvdrom or /dev/sr0. Use the grave accent (cmd) or ($(cmd)) to perform a command substitution:
blocks=$(isosize -d 2048 /dev/sr0)
Now run dd command and display progress bar while using dd command:
sudo dd if=/dev/sr0 of=/tmp/output.iso bs=2048 count=$blocks status=progress
Untested (for same result):
dd if=/dev/cdrom1 of=./image.img
img2iso image.img image.iso