after 4 months I wanted to check if the problems that were bothering me had been fixed.
- Bluetooth headphones audio stutter
- bluetooth keyboard connection breaks
- Wifi 2.5GHz fluctuating throughput. Often upload higher than download
- Whether maybe now my Minix USB-C hub via HDMI shows a stutter-free picture?
- Video 4 Linux hardware accelerated video playback with FFMPEG
To anticipate it. Nothing has changed for me!
on my other Linux devices (notebook, mini PC, tv box) I donāt have any of the above problems!
Iāve installed all the updates. Many again without description of what kind of software this is and what it enhances.
I configure and experiment with the librem5 from my living room couch. I connect my living room TV to the USB-C hub i-tec found here:
It was another frustrating experience.
Often the connection to the Bluettoth keyboard broke down and I constantly hammered on the keyboard to reconnect.
Copying files from the NFS-NAS to the Librem5 sometimes ran with only 4Mit/s.
In the process, the bandwidth has fluctuated greatly.
The same with downloads from the internet. the best result was 20Mbit/s download and 25Mbit/s upload. It should be 50/30!
I then wondered how these wifi fluctuations come about and did various tests.
-
Without USB-C hub, placed on the floor at a distance of one meter from the WiFi access point without touching it.
Signal strength good
20MBit down / 20Mbit up -
Without USB-C hub, placed on the floor at a distance of 6 meters in a direct line through an open door to the WiFi access point without touching it.
Signal strength good
20MBit down / 23Mbit up -
Without USB-C hub, placed on the couch at a distance of 8 meters through a wall without touching it.
Signal strength good
6.5MBit down / 8.1Mbit up -
Same test as 3) but with USB-C hub connected
Signal Strength OK
500Kbit down / 130Kbit up
I then repeated tests 1) and 2) also with the USB-C hub connected and the bandwidth did not collapse!
My impression now is that if all Bluetooth or WiFi 2.5GHz devices are close to each other it works sufficiently well.
If you are in the āouterā reception area and have a USB-C hub connected, there will be connection interruptions and poor bandwidth.
With Bluetooth already at >~2 meters. When I put the keyboard to the side at armās length.
With WiFi already less than 10 meters through a wall!
Has anyone had similar experiences?