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Tue, 29 Sep 2026 05:58:04 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id JbwcOGtTu2odMQAAD6G6ig (envelope-from ); Tue, 29 Sep 2026 05:58:04 +0000 Date: Tue, 29 Sep 2026 07:58:03 +0200 Message-ID: <87tsn838gk.wl-tiwai@suse.de> From: Takashi Iwai To: Sasha Levin Cc: Faaris Ansari , stable@vger.kernel.org, regressions@lists.linux.dev, linux-sound@vger.kernel.org, =?ISO-8859-1?Q?C=E1ssio?= Gabriel , Takashi Iwai , Jaroslav Kysela , Faaris Ansari Subject: Re: [REGRESSION] Audient EVO4 hardware volume control now requires quirk In-Reply-To: <2026-09-28-2-daily-reply-0001-re-audient-evo4-channel-3-set-cur@kernel.org> References: <2026-09-27-daily-reply-0001-re-audient-evo4-mixer-put-errors@kernel.org> <2026-09-28-daily-reply-0001-re-audient-evo4-upstream-decision@kernel.org> <2026-09-28-2-daily-reply-0001-re-audient-evo4-channel-3-set-cur@kernel.org> User-Agent: Wanderlust/2.15.9 (Almost Unreal) Emacs/30.2 Mule/6.0 Precedence: bulk X-Mailing-List: linux-sound@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") Content-Type: text/plain; charset=US-ASCII X-Spam-Score: -2.01 X-Rspamd-Queue-Id: 8215C1F79E X-Rspamd-Server: rspamd1.dmz-prg2.suse.org X-Spam-Level: X-Rspamd-Action: no action X-Spamd-Result: default: False [-2.01 / 50.00]; BAYES_HAM(-3.00)[99.99%]; SUSPICIOUS_RECIPS(1.50)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; MID_CONTAINS_FROM(1.00)[]; R_DKIM_ALLOW(-0.20)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; NEURAL_HAM_SHORT(-0.20)[-1.000]; MIME_GOOD(-0.10)[text/plain]; MX_GOOD(-0.01)[]; ARC_NA(0.00)[]; TO_DN_SOME(0.00)[]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; MIME_TRACE(0.00)[0:+]; URIBL_BLOCKED(0.00)[suse.de:dkim,suse.de:mid,imap1.dmz-prg2.suse.org:helo,imap1.dmz-prg2.suse.org:rdns]; FREEMAIL_ENVRCPT(0.00)[gmail.com]; RCVD_TLS_ALL(0.00)[]; SPAMHAUS_XBL(0.00)[2a07:de40:b281:104:10:150:64:97:from]; RCVD_COUNT_TWO(0.00)[2]; FROM_EQ_ENVFROM(0.00)[]; FROM_HAS_DN(0.00)[]; FREEMAIL_CC(0.00)[googlemail.com,vger.kernel.org,lists.linux.dev,gmail.com,suse.com,perex.cz]; TO_MATCH_ENVRCPT_SOME(0.00)[]; TAGGED_RCPT(0.00)[]; RCPT_COUNT_SEVEN(0.00)[9]; DKIM_TRACE(0.00)[suse.de:+]; RCVD_VIA_SMTP_AUTH(0.00)[]; DBL_BLOCKED_OPENRESOLVER(0.00)[imap1.dmz-prg2.suse.org:helo,imap1.dmz-prg2.suse.org:rdns,suse.de:dkim,suse.de:mid] X-Spam-Flag: NO On Tue, 29 Sep 2026 00:39:05 +0200, Sasha Levin wrote: > > > [ 80.940668] usb 3-1: cannot set ctl value: req = 0x1, wValue = 0x203, > > wIndex = 0xa00, type = 4, data = 0x0/0x81 > [...] > > numid=4,iface=MIXER,name='EVO4 Playback Volume' > > ; type=INTEGER,access=rw---R--,values=4,min=0,max=254,step=0 > > : values=182,182,0,0 > > Thanks, that narrows it down. > > Every failure is SET_CUR of the Volume control on feature unit 10, channel 3 > (wValue 0x0203, wIndex 0x0a00). That unit is 'EVO4 Playback Volume' and > advertises read/write volume on all four channels. mixer_ctl_feature_put() > writes channels 1 and 2, then returns the channel 3 error, so the hardware > volume changes while userspace is told the write failed and adds software > attenuation on top. Faaris sees the same on 7.3-rc5, so this is a mainline > regression from 87a6f2fa6e6c ("ALSA: usb-audio: Propagate write errors in > generic mixer put callbacks"). Right. So a simple fix would be to just to set the IGNORE_CTL_ERROR quirk flag like below. One of iD14 models has already this flag, so it might be safer to set to all Audient devices. thanks, Takashi --- a/sound/usb/quirks.c +++ b/sound/usb/quirks.c @@ -2690,6 +2690,8 @@ static const struct usb_audio_quirk_flags_table quirk_flags_table[] = { QUIRK_FLAG_DSD_RAW), DEVICE_FLG(0x2708, 0x0002, /* Audient iD14 */ QUIRK_FLAG_IGNORE_CTL_ERROR), + DEVICE_FLG(0x2708, 0x0006, /* Audient EV04 */ + QUIRK_FLAG_IGNORE_CTL_ERROR), DEVICE_FLG(0x2772, 0x0502, /* Musical Fidelity M6s DAC */ 0), /* for avoiding QUIRK_FLAG_DSD_RAW with vendor match */ DEVICE_FLG(0x2912, 0x30c8, /* Audioengine D1 */