From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1955C1EF09B for ; Mon, 6 Apr 2026 20:06:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775506017; cv=none; b=a5h0Qh6Gz88JL2XEPpzVESaJ/1LkoDzM4DEgcUKd15uZeHGtuS4g0D5BOe5X2dxlTmtPm9EK/AN6ViMYz6wX46f5GQ0Ovu1Ny7vxWN05wjhHBIulagrKeuiN4A09rnEvZSUZYMn/OxA8e7JsQz0pNlVBTS3GeAnZLRF57ZNCIEM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775506017; c=relaxed/simple; bh=cPo1ErjEtxV1wQkE84rK2GVSiB6N2+7lFQTY3pgDSPg=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: Content-Type:MIME-Version; b=LU/dZb5sdQwB+fS2y/kvOSABs9konpI4KY8Qa4irAE9J6cS2JAkB58covMnITy/FXnCyFgX+E7KLR+PfNq6syjz3o8phsOJu6VPnQwT1PoqCbCF4O7BgGlhktJFW8+AkkxDMIZDEOZAuiCJar2WxLx5D77wsRJws5XDM4A5jmmg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Y5sNEzrU; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Y5sNEzrU" Received: by smtp.kernel.org (Postfix) with ESMTPS id A637FC4CEF7 for ; Mon, 6 Apr 2026 20:06:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1775506016; bh=cPo1ErjEtxV1wQkE84rK2GVSiB6N2+7lFQTY3pgDSPg=; h=From:To:Subject:Date:In-Reply-To:References:From; b=Y5sNEzrUDA3sRFbQkoUCb525Mh2Whl3TDinUlp2sUSpwmPlCuvKwhL8ajS46sJ+kw JYbfoqCp5LD7RE5xqY5UQyCVwrBmJq69xbHaiyKgej2crjNILRseVHJfSZQvVQpp2r UChO7BaMcYusJsqF//AS6M3RhGrlTR789pPmzAR3CipNsAXWneNoLz95MK/kw/7m+r lRIcM2Ih8Mf5kpbhN4/Bxm+InHHmm499Fbr/s/+JnaQl+ic9r/VDYsqsd20IfInp2O 9UGH2vXEgGpxWxa1bfc4Y4x+ytymQgRiSObf4N8CT8lWZLnRiKtQFe+mPemlrMLV/V TUmNTNAnE6+7g== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id 9E5BEC41613; Mon, 6 Apr 2026 20:06:56 +0000 (UTC) From: bugzilla-daemon@kernel.org To: linux-usb@vger.kernel.org Subject: [Bug 221318] mice behind ASMedia ASM1042A via Thunderbolt 2 never produce input, most likely due to interrupt pipe idle window during enumeration Date: Mon, 06 Apr 2026 20:06:56 +0000 X-Bugzilla-Reason: None X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: AssignedTo drivers_usb@kernel-bugs.kernel.org X-Bugzilla-Product: Drivers X-Bugzilla-Component: USB X-Bugzilla-Version: 2.5 X-Bugzilla-Keywords: X-Bugzilla-Severity: high X-Bugzilla-Who: manauer.uel@gmail.com X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: drivers_usb@kernel-bugs.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 Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 https://bugzilla.kernel.org/show_bug.cgi?id=3D221318 --- Comment #17 from manauer.uel@gmail.com --- > I could look at it out of curiosity, I think the simplest way is to > zip -r debugfs.zip /sys/kernel/debug/usb/xhci/0000:0a:00.0 > shortly after it happens, should be enough if the bus isn't very busy. I attached the zip file. It was captured by connecting the mouse without the udev rule active and without the dongle, waiting about 10 seconds, then run= ning your suggested command. sudo zip -r debugfs.zip /sys/kernel/debug/usb/xhci/0000:0a:00.0 > Weird. I think the receiver has a different polling rate (1ms?). Do you h= ave > more mice to check if it's a consistent pattern that things only work if = at > least one 1ms device is connected, or something stupid like that? This was a surprise. It turns out there are mice that work fine without any workaround. I swear, the four mice I originally tested were all Logitech pl= us one no-name mouse from my partner, and none of them worked, which is why th= is did not come up earlier. Mouse Interfaces bInterval Works Lenovo USB Optical (17ef:608d) 1 10ms yes Microsoft Comfort 3000 (045e:077b) 1 10ms yes Holtek MGK-15BU (04d9:1135) 1 10ms yes Logitech G5 (046d:c049) 2 1ms/10ms no Logitech G Pro Wireless (046d:c088) 3 1ms/1ms/1ms no (tested = via cable) Logitech G403 ? ? no (not at hand) Another no-name mouse (partner's) ? ? no (not at hand) The working mice all have a single interface. The failing mice all have multiple interfaces and at least one endpoint polling at 1ms. The G Pro Wireless was connected via cable for this test. Its wireless dongle (046d:c= 539) was not plugged in during any of these tests. That dongle is the same one t= hat was observed earlier to make all other mice work when plugged in alongside them. > Are you able to run a patched kernel? Lacking better ideas, I suppose we > could force 1ms polling and see what happens (don't bother with usbhid > mousepoll option - it doesn't work on xhci-hcd). Sure, I can try running a patched kernel if you think it is worth it, just = for testing. I would not want to maintain a custom kernel long term, but a one-= off build to confirm a fix is fine. Given the data above though, forcing 1ms mi= ght make things worse rather than better since 1ms seems to be what correlates = with failure. Would forcing 10ms on the failing mice be a more interesting test? > Maybe, but you suggest to disable a power saving feature everywhere for t= he > sake of one old questionable xHCI controller. Maybe there is a better way. That is a fair point. If there is a more targeted fix, either in the ASM104= 2A handling or scoped to the controller rather than all mice, that would obvio= usly be preferable. I am happy to test whatever approach you think makes more se= nse. --=20 You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.=