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Groups > linux.debian.kernel > #92579
| From | Tophetei <dontspam884@gmail.com> |
|---|---|
| Newsgroups | linux.debian.bugs.dist, linux.debian.kernel |
| Subject | Bug#1136957: bluetooth: MediaTek MT7922 regression - Failed to send wmt func ctrl (-22) since 6.12.86 |
| Date | 2026-05-17 17:30 +0200 |
| Message-ID | <MVLBf-5Qzt-1@gated-at.bofh.it> (permalink) |
| Organization | linux.* mail to news gateway |
Cross-posted to 2 groups.
Source: linux Version: 6.12.88-1 Severity: important Tags: upstream X-Debbugs-Cc: dontspam884@gmail.com Dear Maintainer, MediaTek MT7922 Bluetooth (USB 0489:e0d8) stopped working since kernel 6.12.86+deb13. The last working kernel is 6.12.63+deb13. Hardware: Bus 003 Device 002: ID 0489:e0d8 Foxconn / Hon Hai Bluetooth 5.2 Adapter [MediaTek MT7922] Kernel error (dmesg): Bluetooth: hci0: HW/SW Version: 0x008a008a, Build Time: 20241106163512 Bluetooth: hci0: Failed to send wmt func ctrl (-22) Bluetooth: hci0: HCI Enhanced Setup Synchronous Connection command is advertised, but not supported. bluetoothctl: "No default controller available" btmgmt info: "Index list with 0 items" Bisect: Working: linux-image-6.12.63+deb13-amd64 (6.12.63-1) Broken: linux-image-6.12.86+deb13-amd64 (6.12.86-1) Broken: linux-image-6.12.88+deb13-amd64 (6.12.88-1) Broken: linux-image-7.1-amd64 (7.1~rc3-1~exp1) Tested firmware: firmware-mediatek 20250410-2 and upstream BT_RAM_CODE_MT7922_1_1_hdr.bin (Build Time: 20260224103448) — same result. System: Debian 13 (trixie), amd64 -- System Information: Debian Release: 13.5 APT prefers stable-updates APT policy: (500, 'stable-updates'), (500, 'stable-security'), (500, 'stable'), (1, 'experimental') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 6.12.63+deb13-amd64 (SMP w/12 CPU threads; PREEMPT) Kernel taint flags: TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US:en Shell: /bin/sh linked to /usr/bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled
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Bug#1136957: bluetooth: MediaTek MT7922 regression - Failed to send wmt func ctrl (-22) since 6.12.86 Tophetei <dontspam884@gmail.com> - 2026-05-17 17:30 +0200 Processed: Re: Bug#1136957: bluetooth: MediaTek MT7922 regression - Failed to send wmt func ctrl (-22) since 6.12.86 "Debian Bug Tracking System" <owner@bugs.debian.org> - 2026-05-17 20:40 +0200 Bug#1136957: bluetooth: MediaTek MT7922 regression - Failed to send wmt func ctrl (-22) since 6.12.86 Salvatore Bonaccorso <carnil@debian.org> - 2026-05-17 20:40 +0200 Bug#1136957: bluetooth: MediaTek MT7922 regression - Failed to send wmt func ctrl (-22) since 6.12.86 Ethan Rushforth <t2712142@gmail.com> - 2026-05-18 07:00 +0200
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