this post was submitted on 07 Mar 2024
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Which version of KDEConnect do you run in Linux Mint? Seems like they package an old version from what I gather when searching for answers:
https://discuss.kde.org/t/can-not-pair-android-phone-and-linux-mint-21-1-desktop-with-kde-connect/1455
https://old.reddit.com/r/linux/comments/1b5fvay/how_do_users_of_mint_or_other_debianbased_distros/
Are your other machines running distros with more up to date repositories?
I'll look closer into this when I'm back at the computer in about an hour. In the post on the KDE forum, they seem to get an error complaining about the version though, while in my case they don't show up at all when I attempt to pair. I've checked the things listed on the KDE Connect wiki, but those checks pass.
EDIT: UDP discovery was turned off on my phone, and turning it on allowed connection. All is good now!
Sweet! Here comes a random tidbit now that your problem is solved.
Easy screen mirroring of android to linux:
Prereqs:
.bashrc function:
#Connect to Android and view phone screen#Tip: If using PIN on lock screen you can unlock by entering PIN + Enter even if screen is blackfunction phoneconnect(){sudo adb start-serveradb tcpip 2233adb connect <phoneIP>:2233scrcpy}Simply write phoneconnect in terminal when both devices are accessible on the LAN and you can remote control your phone. Some applications will blacken the screen on the computer if sensitive data is shown.
Cheers, that's pretty cool! I've looked into scrcpy before, but never got around to testing it. The way you present it is super easy, so I will definitely give this a shot!
Regarding my problem, it seems it wasn't as fixed as I thought :p The connection issue described in the original post still comes once in a while, not sure what triggers it, but it usually resolves if I ping the device and run iptraf to monitor the traffic. Probably superstitious, seems weird to me that it should fix it. It also happened once between my laptop and my new machine, so it was not isolated to the phone after all.
If you're using wireless then you could try disabling power saving on the wifi card. It will drain more battery but the only reason I can see iptraf helping is if it wakes the network card.
https://unix.stackexchange.com/questions/269661/how-to-turn-off-wireless-power-management-permanently#315400
I've already done that after having had very slow speeds in a room far away from the WiFi hotspot. But another thing I've noticed is that the TxPower-setting is very low (3 dBm), which I believe was the real culprit for the slow speeds. I think the max allowed value of this is 20 (according to a line in the
dmesgoutput), so I've been wondering if I could just change this to a higher value. It is now placed close to the router, so I am thinking of connecting it by cable (I just don't have one at the moment) - maybe that could solve my other problem as well.This is yet another problem, but do you know if the TxPower-setting could affect the Bluetooth-capabilities? I use a keyboard connected by Bluetooth. When I run the Dolphin Emulator, where I've set it to emulate a Bluetooth-adapter and search continuously for my Wii-remotes, it seems to interfere with the keyboard-signals.
I would try a LiveUSB with Fedora or another distro with a more up to date kernel and test my wireless card there, if wifi and bluetooth plays nice then you can install a new kernel on Linux Mint and probably have it solved that way.