From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 6DD08E92710 for ; Sat, 27 Dec 2025 19:53:42 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 524BA10E8C3; Sat, 27 Dec 2025 19:53:41 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.b="HC6IAnhn"; dkim-atps=neutral Received: from sea.source.kernel.org (sea.source.kernel.org [172.234.252.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id 9394410E8C3 for ; Sat, 27 Dec 2025 19:53:39 +0000 (UTC) Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id 4CE6C432E3 for ; Sat, 27 Dec 2025 19:53:39 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPS id 1FAE2C4CEF1 for ; Sat, 27 Dec 2025 19:53:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1766865219; bh=hfjbmegF1L9ljS9YLUjiF/vBO29hnGIcXt12D69+dUU=; h=From:To:Subject:Date:In-Reply-To:References:From; b=HC6IAnhn43uGuCghAJ8+47JtrCWSG+vG23LWeYf452xQn9J58zpqit8jAleNkLKD4 SiKSgNoA4BtQuIoRo10Sw75KynfYOtNjh5aPPaQxLDik/GkjEK0mdISZl48z/LChGk vZV8uNU2Wngh/7KLkhtsgxana6wjMOKPKpLkxZZzVnmLqGRqX9DrI8u15jkSnmystP dGr4Gtdk8pZ5HwC3/6zS/STFUBqDajCp5sG4dXlyuUt2QfPPiXJtSl3lJRJc4Xh/Zk fFY+JyN6GFQ4JEwZ3RVCldw51X0HWpIgonlnb7cbOSCdlnGG8CBUHE0cKrfnytNgvL bsVP8RzcNmXIQ== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id 16C87C53BBF; Sat, 27 Dec 2025 19:53:39 +0000 (UTC) From: bugzilla-daemon@kernel.org To: dri-devel@lists.freedesktop.org Subject: [Bug 220906] Regression: 4K display output fails on ThinkPad Thunderbolt 4 Dock with AMD GPU (Worked in 6.17.1, broken in 6.17.11) Date: Sat, 27 Dec 2025 19:53:38 +0000 X-Bugzilla-Reason: None X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: AssignedTo drivers_video-dri@kernel-bugs.osdl.org X-Bugzilla-Product: Drivers X-Bugzilla-Component: Video(DRI - non Intel) X-Bugzilla-Version: 2.5 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: danandrei@gmail.com X-Bugzilla-Status: REOPENED X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: drivers_video-dri@kernel-bugs.osdl.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_status resolution 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 MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" https://bugzilla.kernel.org/show_bug.cgi?id=3D220906 Andrei (danandrei@gmail.com) changed: What |Removed |Added ---------------------------------------------------------------------------- Status|RESOLVED |REOPENED Resolution|ANSWERED |--- --- Comment #6 from Andrei (danandrei@gmail.com) --- I also checked 6.18.2, it still exhibits the issue. I went through minor versions between 6.17.1 and 6.17.11, and found the version where the issue = was first introduced. 6.17.4 - works 6.17.5 - works 6.17.6 - does not work One extra note: I see the amdgpu line that I originally thought associated the problem, also appears in the dmesg output for working kernel versions. For example, 6.17.4 (working): [ 6.602684] amdgpu 0000:c3:00.0: amdgpu: [drm] DMUB HPD RX IRQ callback: link_index=3D5 [ 6.612716] amdgpu 0000:c3:00.0: amdgpu: [drm] DMUB HPD RX IRQ callback: link_index=3D5 [ 6.634430] amdgpu 0000:c3:00.0: amdgpu: [drm] DMUB HPD RX IRQ callback: link_index=3D5 [ 6.639137] amdgpu 0000:c3:00.0: amdgpu: [drm] DMUB HPD RX IRQ callback: link_index=3D5 6.17.5 (working): [ 6.468886] amdgpu 0000:c3:00.0: amdgpu: [drm] DMUB HPD RX IRQ callback: link_index=3D5 [ 6.473641] amdgpu 0000:c3:00.0: amdgpu: [drm] DMUB HPD RX IRQ callback: link_index=3D5 [ 6.479753] amdgpu 0000:c3:00.0: amdgpu: [drm] DMUB HPD RX IRQ callback: link_index=3D5 [ 6.492847] amdgpu 0000:c3:00.0: amdgpu: [drm] DMUB HPD RX IRQ callback: link_index=3D5 The following may or may not be relevant, but here's something that appears only in problematic versions, and is missing from working versions: 6.17.6: [ 18.911013] ath12k_pci 0000:c2:00.0: chan info: invalid frequency 6935 (= idx 101 out of bounds) [ 18.986136] ath12k_pci 0000:c2:00.0: chan info: invalid frequency 7015 (= idx 101 out of bounds) [ 19.061037] ath12k_pci 0000:c2:00.0: chan info: invalid frequency 7095 (= idx 101 out of bounds) [ 20.562028] ath12k_pci 0000:c2:00.0: chan info: invalid frequency 6435 (= idx 101 out of bounds) 6.17.12: [ 34.459370] ath12k_pci 0000:c2:00.0: chan info: invalid frequency 6455 (= idx 101 out of bounds) [ 34.534471] ath12k_pci 0000:c2:00.0: chan info: invalid frequency 6535 (= idx 101 out of bounds) [ 34.609497] ath12k_pci 0000:c2:00.0: chan info: invalid frequency 6615 (= idx 101 out of bounds) [ 34.684571] ath12k_pci 0000:c2:00.0: chan info: invalid frequency 6695 (= idx 101 out of bounds) 6.18.2: [ 14.236205] ath12k_pci 0000:c2:00.0: chan info: invalid frequency 5180 (= idx 101 out of bounds) [ 14.391215] ath12k_pci 0000:c2:00.0: chan info: invalid frequency 5200 (= idx 101 out of bounds) [ 14.546169] ath12k_pci 0000:c2:00.0: chan info: invalid frequency 5220 (= idx 101 out of bounds) [ 14.700826] ath12k_pci 0000:c2:00.0: chan info: invalid frequency 5240 (= idx 101 out of bounds) In working versions, ath12k_pci logging terminates with the following: 6.17.1: [ 38.914023] ath12k_pci 0000:c2:00.0: failed to enqueue rx buf: -28 6.17.4: [ 37.071153] ath12k_pci 0000:c2:00.0: failed to enqueue rx buf: -28 6.17.5: [ 6.586797] ath12k_pci 0000:c2:00.0: failed to enqueue rx buf: -28 --=20 You may reply to this email to add a comment. 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