Bug 219894 - Bluetooth Qualcomm WCN785x - Input/output error
Summary: Bluetooth Qualcomm WCN785x - Input/output error
Status: NEW
Alias: None
Product: Drivers
Classification: Unclassified
Component: Bluetooth (show other bugs)
Hardware: All Linux
: P3 normal
Assignee: linux-bluetooth@vger.kernel.org
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2025-03-19 00:01 UTC by Gurenko Alex
Modified: 2025-03-19 12:30 UTC (History)
0 users

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Kernel Version:
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Regression: No
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Description Gurenko Alex 2025-03-19 00:01:06 UTC
I've got today new MSI X870E Tomahawk WiFi board and it comes with Qualcomm WCN785x for WiFi/Bluetooth. While Bluetooth is available and can scan for the devices, I cannot complete the pairing process with following errors in logs:

Mar 19 00:56:01 bluetoothd[1456]: src/device.c:search_cb() EC:73:79:59:9A:4E: error updating services: Input/output error (5)
Mar 19 00:56:17 bluetoothd[1456]: src/device.c:search_cb() EC:73:79:59:9A:4E: error updating services: Input/output error (5)
Mar 19 00:56:17 bluedevil-wizard[40108]: kf.bluezqt: PendingCall Error: "br-connection-create-socket"

I can see that device is added and set to trusted, but attempt to connect shows the same error:

Mar 19 00:57:33 bluetoothd[1456]: src/device.c:search_cb() EC:73:79:59:9A:4E: error updating services: Input/output error (5)
Mar 19 00:57:33 systemsettings[40016]: kf.bluezqt: PendingCall Error: "br-connection-create-socket"

Please let me know what other information I can provide to help.
Comment 1 Gurenko Alex 2025-03-19 12:30:58 UTC
So, I seems to workaround the problem by passing bluetooth device into the Windows 11 VM and installing driver (https://download.msi.com/dvr_exe/mb/qualcomm_ncm865_bt.zip) for what is written as Qualcomm NCM865 (WCN785x is probably a WiFi part?)

Is it probably a missing firmware (dfu files in the package) and now it's using the one windows loaded?

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