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Wed, 28 Oct 2026 12:12:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1793189524; bh=H3a+/LaEqysK4SGiMnOp+TuUvunECtp9mFQ88KuIQQk=; h=From:To:Subject:Date:In-Reply-To:References:From; b=Hm/kX7R0xBHnOYw01sw7IplmW8j1TFIeQtfrDqoDohJI4Y+qHvEtyaanlxb2rlCpN dNd7tvyewFMoSfGZaQ6Ic3Jwbk79Tj39pixPxo5CbFtGR9L9auo50zSzN/kZFftN71 yPZan1RbISVmQungTflEaEPeKQH82EriMiwTW2ft+CsxCf86pKLhNU3DJ5tOd1yBvB jVyXq5WDfchukb09PDNjJpWSDkr53XfcO0GRNZghx1HshtTeUr1HAeYPmzBt5ctsVn OIZZboW42dRZ5GfKo3pZnuuhcxbfNacc7/w/Sx+f+goXEHnsIve9ngQ35GWo1oQUEg Qgruvys2qAdnw== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id E8BD0C41613; Wed, 28 Oct 2026 12:12:03 +0000 (UTC) From: bugzilla-daemon@kernel.org To: linux-bluetooth@vger.kernel.org Subject: [Bug 222151] MT7925 (0489:e111): BT firmware 20260813113236 (linux-firmware 50e034a2) breaks HFP calls and fails WMT init; 20260605184935 works Date: Wed, 28 Oct 2026 12:12:03 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Drivers X-Bugzilla-Component: Bluetooth X-Bugzilla-Version: 2.5 X-Bugzilla-Keywords: X-Bugzilla-Severity: high X-Bugzilla-Who: purpleritza@gmail.com X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: linux-bluetooth@vger.kernel.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugzilla.kernel.org/ Auto-Submitted: auto-generated X-Mailing-List: linux-bluetooth@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 https://bugzilla.kernel.org/show_bug.cgi?id=3D222151 --- Comment #1 from purpleritza@gmail.com --- Correction after further analysis: most of the call failures in my original report were NOT caused by the firmware. The repeating failures correlate wi= th the wireplumber version, not the BT firmware build. Per boot, counting "Failure in Bluetooth audio transport" loops (>=3D 4 wit= hin 3 minutes: HFP/A2DP profile flip-flopping, both bluez nodes going to error): Boot start wireplumber BT firmware build Loops ---------------- ----------- ------------------------- ----- 2026-09-28 12:40 0.5.15 20260813113236 0 2026-10-03 11:07 0.5.18 20260605 + 20260813 3 2026-10-07 11:36 0.5.18 20260605184935 1 2026-10-07 11:59 0.5.15 20260605184935 0 2026-10-15 11:00 0.5.15 20260605184935 0 2026-10-17 19:53 0.5.15 20260605 + 20260813 0 2026-10-25 15:49 0.5.18 20260605184935 5 Every loop happened on wireplumber 0.5.18, with either firmware build; none on 0.5.15. I will report that part to wireplumber separately. What remains attributable to firmware 20260813113236: 1. WMT init failure on this machine: BT build Loads WMT init failures 20260605184935 71 0 20260813113236 16 2 (2026-09-27, 2026-10-17) 2. Single mid-call HFP drops with wireplumber 0.5.15: BT build Time on wireplumber 0.5.15 Mid-call HFP drops 20260605184935 ~16 days 0 20260813113236 ~7.5 days 2 (2026-09-28, 2026-10-19 12:02:56) The 2026-10-19 drop is the log in my original report. The only drop seen on 20260605184935 was during A2DP playback, not a call. Small sample, so weaker evidence than the WMT init failure. Current setup, no call problems so far: linux-firmware-mediatek 20260810-2 (BT build 20260605184935) + wireplumber 0.5.15, kernel 7.2.11. --=20 You may reply to this email to add a comment. You are receiving this mail because: You are the assignee for the bug.=