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[203.140.186.253]) by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-c7ffbc6f511sm2100046a12.16.2026.05.01.05.22.51 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 01 May 2026 05:22:51 -0700 (PDT) Date: Fri, 1 May 2026 21:22:49 +0900 From: kay-ws To: alsa-devel@alsa-project.org Subject: [BUG] ALC295 internal speaker silent on Panasonic Let's Note CF-SV8 (PCI subsys 10f7:8338) Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline X-MailFrom: a3.works@gmail.com X-Mailman-Rule-Hits: nonmember-moderation X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; loop; banned-address; header-match-alsa-devel.alsa-project.org-0; header-match-alsa-devel.alsa-project.org-1; emergency; member-moderation Message-ID-Hash: AAMK3OX5VJGTYHAF24TETGXZ32USDFID X-Message-ID-Hash: AAMK3OX5VJGTYHAF24TETGXZ32USDFID X-Mailman-Approved-At: Mon, 04 May 2026 11:33:29 +0000 X-Mailman-Version: 3.3.10 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: Hi, Internal speaker is silent on a Panasonic Let's Note CF-SV8-2 (Realtek ALC295, PCI subsystem 10f7:8338), while the headphone jack works correctly. Hardware confirmed healthy: - Internal speaker plays sound under Windows 10 - Panasonic BIOS HW self-test reports speaker OK Linux side: - Kernel 7.0.2-2-cachyos (CachyOS / Arch) - ALSA 1.2.15.2, PipeWire 1.6.4 The driver picks no quirk fixup for this subsys: ALC295: picked fixup for PCI SSID 10f7:8338 <- empty fixup name PCM data reaches Pin 0x14 (Audio Output 0x02 has stream=1 during playback, same as 0x03 which feeds the working headphone), Pin-ctls is OUT, amp is unmuted, but no audio is produced through the internal speaker. Tried with no effect: - options snd_hda_intel model=thinkpad (fixup chain runs) - hda-verb 0x14 SET_EAPD_BTLENABLE 0x02 - hda-verb 0x01 SET_GPIO_MASK/DIRECTION/DATA 0x03 - WirePlumber profile output:analog-stereo (non-duplex) Full alsa-info.sh dump: http://alsa-project.org/db/?f=546e2c9fc0e2261cb6d8a7c837f8c3f54f771064 Could a fixup entry for PCI SSID 10f7:8338 be added to the alc269 quirk table? I'm happy to test patches and try Realtek coef sequences if suggested. Thanks, kay-ws