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Bluetooth 5.3 Linux support?

Main Post:

I have been searching the interwebs, but it is not clear to me if Bluetooth 5.2 or 5.3 is supported with Linux currently, particularly with M.2 modules, but also external (USB) adapters. Can anyone shed some light into this topic, please?

Edit: after some more hours of research, I have found these supported USB adapters and chipsets so far. Any feedback very much appreciated, the information out there is really scarce!

Bluetooth 5.0

Bluetooth 5.1

Bluetooth 5.2

Bluetooth 5.3

Bluetooth 5.4, Bluetooth 6.0, Wi-Fi 6E & WIFI7 (see blog post)

Edit2: I have created a post on medium.com explaining the differences and pitfalls in Bluetooth 5+ on Linux at the moment. Be careful about CNVi if you want to upgrade cards in your notebooks.

Edit3: Updated the medium article on 2023-10-27 with Bluetooth 5.4 info, and with mentions to BCM6765, the BCM47722, and the BCM4390.

Edit4: I rewrote the article for 2025 and updated the hardware suggestions. 2025-03-03

Top Comment: I bought this dongle, who claims to be 5.3, and identifies itself as: 0bda:a729 Realtek Semiconductor Corp. Bluetooth 5.3 Radio It loads firmware rtl_bt/rtl8761bu_*.bin, and all seems fine until I actually try to use it, then I get this messages in kernel log: [ 1288.310891] Bluetooth: hci0: Opcode 0x2005 failed: -110 [ 1288.310893] Bluetooth: hci0: command 0x2005 tx timeout [ 1290.358935] Bluetooth: hci0: Opcode 0x2041 failed: -110 [ 1290.358939] Bluetooth: hci0: command 0x2041 tx timeout EDIT: SOLUTION I just figured it out, so I didn't test it for long, but it is much better than was before. I was getting these messages in the kernel log when I plugged my dongle: [ 7455.096250] Bluetooth: hci0: RTL: examining hci_ver=0a hci_rev=000b lmp_ver=0a lmp_subver=8761 [ 7455.099195] Bluetooth: hci0: RTL: rom_version status=0 version=1 [ 7455.099204] Bluetooth: hci0: RTL: loading rtl_bt/rtl8761bu_fw.bin [ 7455.099946] Bluetooth: hci0: RTL: loading rtl_bt/rtl8761bu_config.bin [ 7455.100050] Bluetooth: hci0: RTL: cfg_sz 6, total sz 30210 [ 7455.848231] Bluetooth: hci0: RTL: fw version 0xdfc6d922 And while I used it (with gamepads only), it often was disconnected and got "hci0 Opcode failed" messages in the kernel log. I tracked down the code where the kernel loads this firmware, and was convinced that it was correctly identifying the device as rtl8761bu. So I thought that this might be an issue of outdated firmware (maybe Realtek used the same hci_ver and hci_rev for the a newer Bluetooth 5.3 device with backwards compatible firmware... who knows?), and Googled around and found this site with a relatively recent Windows driver in a Google Drive: https://gist.github.com/peteristhegreat/b48da772167f86f43decbd34edbd0849 I downloaded it, found a file with similar size of my rtl8761bu_fw.bin and the same prefix when I open it in an hex editor ("Realtech"). It was named rtl8761b_mp_chip_bt40_fw_asic_rom_patch_new.dat, so I renamed it to rtl8761bu_fw.bin, compressed it with zstd, and replaced my original /lib/firmware/rtl_bt/rtl8761bu_fw.bin.zst with this one. After plugging again my dongle, I got a different firmware version in the kernel log: [ 7560.346854] Bluetooth: hci0: RTL: fw version 0xdcc6b3a8 The number was bigger, so that was a good sign. Then I tried to connect the PSMove controller I have been trying to use for the past few days. Worked in my first attempt. No more spurious hci error messages in the log, and I can connect and disconnect reliabily by just pressing the PS button on the controller. I think this is it, it should work fine if you just update the firmware in here: /lib/firmware/rtl_bt/rtl8761bu_fw.bin.zst For convenience, I've uploaded the file I am using now to here , but it should be very easy to rename and zstd the one you can find in the Windows driver.

Forum: r/linuxhardware

53 pencil app support

Main Post:

Yes. There are still apps that support the discontinued 53 pencil. Its the Adobe Illustrator Draw. When drawing, press the setting button and press “Stylus” then follow the instruction.

Top Comment:

I’ve had that thing for years - was a gift for my wife. Her niece destroyed it last week in two days. Sigh.

Forum: r/ipad

53% of Americans support price control 🥰🥰

Main Post: 53% of Americans support price control 🥰🥰

Top Comment:

The majority of Americans are stupid. More at 11.

Forum: r/neoliberal

Runtime Error 53 while opening Word.

Main Post:

SOLVED: MICHAIKSDEH'S SOLUTION HELPED ME GET THROUGH THIS PROBLEM. THE TERMINAL SOLUTION HELPED ME GET THE CORRECT FILE. ADDING THEIR COMMENT IF ANYONE NEEDS HELP

Are you a little fit in the terminal? Before you reset the device completely, I would try something like:

"sudo find /Library -iname “*linkCreation*” -print > ~/Desktop/search.txt

The command should roughly work, but unfortunately I can't test it at the moment because I'm traveling.

I am getting this Runtime Error 53. File not found: /Library/Application Support/Adobe/MACPDFM/MacPDFM.framework/Versions/A/MacPDFM when I open word or any other office apps."

I have tried the usual solutions, i.e. deleting the linkCreation.dotm from the various Word, Excel and Powerpoint Folders (somewhere in~/Library/Group Containers/UBF8T346G9.Office/User Content/Startup/Excel or Word or Power Point) and have not been able to find the Microsoft Office folder in Library/Application Support to go through that route.

I have also uninstalled adobe and office suite and reinstalled to no avail.

I have been forced to click the deny button a million times already, I desperately need a solution otherwise I am contemplating a factory reset.

Please help.

Using MacOS Sequoia 15.1

Top Comment: This works fine: https://answers.microsoft.com/en-us/msoffice/forum/all/new-error-run-time-error-53-macpdfm/75a8a130-ad60-4ebd-8785-a0328de58134 Used it many times!

Forum: r/MacOS

AWS Claims They No Longer Support .ca TLD in Route 53

Main Post:

Anyone else having troubles registering / transferring .ca (Canada) domains?

I haven't been able to for a few days now. Finally opened a ticket with support, they just called me to let me know that .ca TLD is no longer supported as of their last update?!?

Their documentation says .ca is supported, and .ca is selectable during transfer / registration in Route 53.

Ironic, considering we just got access to a Central Canada datacenter in AWS, and they just completed their AWS Canada billing change as of Feb 1st.

Asked the rep how this affects existing .ca domains currently in Route 53 and whether or not we would be able to renew them and he did not have an answer.

Anyone else having problems? I feel like I'm being punked.

UPDATE: I had requested more information regarding how this is going to affect renewals in the ticket. I got a response today that there was a bug found in their system that prevented .ca domain renewals and the bug has been fixed. I just transferred 2 .ca domains in and worked no problems. Annoying the first tech indicated they had removed this availability, but alas its fixed now at least!

Top Comment: Nothing says you have to register with Route53. You can create the public hosted zone and register it with another registrar, point the NS at your new AWS NS.

Forum: r/aws