From: Julian Sikorski <belegdol@gmail.com>
To: USB list <linux-usb@vger.kernel.org>
Subject: USB A 3.0 port on Asus Zenbook not recognising the TipToi pen
Date: Sun, 19 Oct 2025 08:34:27 +0200 [thread overview]
Message-ID: <1393a6c5-3430-49cb-95e6-b18c0f5328b0@gmail.com> (raw)
Hello,
disclaimer: this is not linux-specific as Windows 11 also fails to
recognise the devices, but maybe someone has ideas regarding the causes
here.
I have two TipToi Pens by Ravensburger. These are recognised as
04d6:e101 Mentor Graphics usbdisk
when plugged into USB C port via USB C to micro B cable. When plugged
into the USB A port, the following messages are reported into the journal:
Okt 19 08:19:08 kernel: usb usb3-port2: Cannot enable. Maybe the USB
cable is bad?
Okt 19 08:19:09 kernel: usb usb3-port2: Cannot enable. Maybe the USB
cable is bad?
Okt 19 08:19:09 kernel: usb usb3-port2: attempt power cycle
Okt 19 08:19:10 kernel: usb usb3-port2: Cannot enable. Maybe the USB
cable is bad?
Okt 19 08:19:11 kernel: usb usb3-port2: Cannot enable. Maybe the USB
cable is bad?
Okt 19 08:19:11 kernel: usb usb3-port2: unable to enumerate USB device
I have two pens. I tried two cables delivered with them, as well as a
different USB A to micro B cable I had. All exhibit the same issue.
Does anyone have any ideas what could be the problem? My first guess is
that both the laptop and the pen are slightly off-spec in some strange
way, which causes them not to work together. The USB A slot on the
laptop works fine with other devices, and the pen works with the laptop
if connected to USB C.
Best regards,
Julian
next reply other threads:[~2025-10-19 6:34 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-19 6:34 Julian Sikorski [this message]
2025-10-19 15:43 ` USB A 3.0 port on Asus Zenbook not recognising the TipToi pen Alan Stern
2025-10-21 14:44 ` Julian Sikorski
2025-10-21 16:01 ` Alan Stern
2025-10-22 13:25 ` Julian Sikorski
2025-10-22 13:59 ` Alan Stern
2025-10-22 16:35 ` Julian Sikorski
2025-10-22 18:39 ` Alan Stern
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