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Audient EVO4 support Message-ID: References: <20260919151840.24371-1-arc@gmx.li> <92b1eece-9dc7-4b33-9ec5-fc94300038f1@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <92b1eece-9dc7-4b33-9ec5-fc94300038f1@gmail.com> X-Provags-ID: V03:K1:MgH66XBqGRTfb4AbyeISAc6LRkxXk+2ZroGtq4Op0Q2J2qJFV8J GhhdLAa9FMslyBpenglMsC3RPlz9pZFxtBiBaxiikk86moH8Bnq3FuckfHapkhlbfNw9rqs +8/tpDgAemmfXIcSheNwzwESkuhBfMWcTNsdZWJlA6uGAKUWkqyoErTiUHV14qSWaD7fgsn T+Tlr794JJyWj6LNL6tKQ== X-Spam-Flag: NO UI-OutboundReport: notjunk:1;M01:P0:vE8uEJp8iyw=;iArQ1lm+lx9ZK/9x0eL9Uhj4yj4 GozvMlVB2Jy85l/9cGtST98SnIiAz0VUJ+m3kqcIgKZc0BkinnWmgzztp/MsxVPr7IZWB3we1 NY719pnkcFRdj6ufAxDjtCfjCtWq+4OwTqovVrygvk5PQu82YzamNgj6o9jDPQMUlT8mLdL+e iaSiw86OiDpm8Baawe4Hv1WqUHvao9nHr5sw9ZadoVF4SKbvEoFlEPSSuXkCHeHIMei/Bn4rg 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e5Ohheder25LCMir2ZwC5woiD7tlegOgfUKJ5ADo53eGoIDavJuo8GIBae5UMWxuPyv5UqUyv 8M7qVPJSXNCnPe+oSSnYkSvWul1wD40hUO2KNFYntD+MXdIUyJzmxMGcaVoBrRnxCOefikasW bvWjsxgu7ZeSwHP44ei9FBDcAAri/Zk9BoUvUyNqZh70SMPftgQRIJnw9xRL9Pt+1VheDfKbB f2UmOhwGvN0LnEDvFrpdG7q5+8B9GvQ/X1tE1SC7T2QG499COaaG9Or9FJsx8u3FYm9da/ia9 1bK5OL4ZeytdSK37WE2t4XDWHHHzlkOW+CGrBXbqVzlUncM9uQ6fFwnIktALsEDwfwZUw+E4S HWDc6bv/5Z01uBpmfDFKNwUONYWoVkDh52s9TcmmM4uaE5znaOixSrFWYVera2Pp/5T2kf66H 10j2ox5NMfbtMv2ADNJ/e+ Content-Transfer-Encoding: quoted-printable On Fri, Sep 25, 2026 at 11:18:33AM +0100, Faaris Ansari wrote: > Thanks for your work on this - there is currently a regression on the la= test > kernel versions (7.2 onwards, as well as LTS kernels 6.12 and 6.18). Try= ing > to set the volume in software like wpctl, or pwvucontrol causes the soft= ware > volume to be pulled down with it - I think it's something to do with "st= icky > mixers", not completely sure. >=20 > I worked through troubleshooting it here as I originally thought it was = a > wireplumber issue: > https://gitlab.freedesktop.org/pipewire/wireplumber/-/work_items/1022 >=20 > This patch should hopefully solve that, I'm afraid this is not going to be the case. The patch set doesn't change anything with the pre-existing controls except for renaming the 'EVO4 ' master volume mixer to 'Master'. As a matter of fact, I made a similar observation to yours when testing the patch set on the 'sound' kernel tree and the (very sporadic) issue did not disappear after applying the patches. Unluckily, I didn't have time to investigate and as it seemed independent from this patch set and was never observed on my (vanilla) 6.18.x day-to-day setup, even with very recent kernels, I forgot about it. I suspect this might be a regression in the sound-USB core modules or possibly the the alsa core. > and avoid the usage of external > kernel modules like https://github.com/vanzaho/audient-evo-py (which you= 've > based your work from) This one should be solved with the patch set. > I'm not exactly sure how the process with kernel stuff works, but > considering a regression on current mainline as well as LTS branches for > this device - is there some chance of fast tracking the merge of these > patches? The best way of supporting this (even if it only solves half of your concerns) is probably to test it and reply with a Tested-by: tag to the patches.