Asus Zenbook
Debian 13 Trixie
Mate DE
I have just noticed that this computer has stopped recognising USB thumbdrives.ÿ
They are listed in lsusb, but do not appear in my file browser
(caja),
nor in df.ÿ
The same machine sees the same USB thumbdrives when booted into
windows, so it appears not to be faulty hardware.ÿ
I can't say when this started happening; I haven't plugged in any USB thumbdrives for a few weeks.ÿ
Asus Zenbook
Debian 13 Trixie
Mate DE
I have just noticed that this computer has stopped recognising USB thumbdrives.?ÿ
They are listed in lsusb, but do not appear in my file browser (caja),
nor in df.?ÿ
The same machine sees the same USB thumbdrives when booted into
windows, so it appears not to be faulty hardware.?ÿ
I can't say when this started happening; I haven't plugged in any USB thumbdrives for a few weeks.?ÿ
Despite all this the machine boots from an external USB-connected SSD.
It's using wired ethernet via a Startech multi function USB hub, so
it's obvious that the USB is largely working. I have tried connecting
the thumbdrives directly into the computer's USB ports (i.e. not via
external USB hubs) and no change.?ÿ
Any suggestions? Any other info required?
Chris
Do you have a disk mounter thingy in your panel? Can you mount them that way?
It *sounds* like your system has stopped *auto* mounting the thumbdrives.
One other possibility: the thumbdrives are not FAT32, but are exFat or NTFS and you don't have the FS infrasture needed installed (or something like that). Are these *large* thumbdrives (>= 64Gig)?
At Sat, 06 Jun 2026 20:38:36 +0100 Chris Ramsden <chris.ramsden@gmail.com> wrote:
Asus Zenbook
Debian 13 Trixie
Mate DE
I have just noticed that this computer has stopped recognising USB thumbdrives.???????ÿ
They are listed in lsusb, but do not appear in my file browser (caja),
nor in df.???????ÿ
The same machine sees the same USB thumbdrives when booted into
windows, so it appears not to be faulty hardware.???????ÿ
I can't say when this started happening; I haven't plugged in any USB thumbdrives for a few weeks.???????ÿ
Despite all this the machine boots from an external USB-connected SSD.
It's using wired ethernet via a Startech multi function USB hub, so
it's obvious that the USB is largely working. I have tried connecting
the thumbdrives directly into the computer's USB ports (i.e. not via external USB hubs) and no change.???????ÿ
Any suggestions? Any other info required?
Chris
--
Robert Heller -- Cell: 413-658-7953 GV: 978-633-5364
Deepwoods Software -- Custom Software Services http://www.deepsoft.com/ -- Linux Administration Services heller@deepsoft.com -- Webhosting Services
On Sat, 2026-06-06 at 20:38 +0100, Chris Ramsden wrote:
Asus Zenbook
Debian 13 Trixie
Mate DE
I have just noticed that this computer has stopped recognising USB thumbdrives.ÿ
They are listed in lsusb, but do not appear in my file browser
(caja),
nor in df.ÿ
The same machine sees the same USB thumbdrives when booted into
windows, so it appears not to be faulty hardware.ÿ
I can't say when this started happening; I haven't plugged in any
USB
thumbdrives for a few weeks.ÿ
Hi.. This sounds familiar, like something I experienced with ThunarThanks Cindy, some useful ideas there, but I am doubtful that if it
ages ago. I can remember finally stumbling upon "Enable Volume
Management" in Thunar's settings. That option specifically references removable drives, devices, and media.
No clue what triggered mine to fail. Maybe settings became corrupted
during a new debootstrap install or suchly. A glitchy software update
could have been the culprit, too.
Mine's currently unticked meaning I haven't had to enable that
feature
in a long time. Meanwhile, everything I plug in works as expected
these
days.
My thought process in replying is that it might help to try a search
on
keywords like volume management, Debian, and one's personal choice of
file manager.
Maybe it will help... Maybe.
Cindy :)
Afterthought: I tried my own suggested search. DuckDuckGo concluded
by
saying, "While you can use Caja for USB volume management, it might
not
handle automounting and other features as effectively as Dolphin or
other KDE-specific file managers."
For what it's worth: Thunar used to be installable (and thus also uninstallable) as a stand-alone package regardless of the desktop
environment (e.g. LXDE). Thunar could be used to test if it sees
what's
currently not appearing otherwise.
"Enable Volume Management" setting can be found toward the bottom of:
Edit > Preferences > Advanced (tab)
In enabling my own just now, I see references to mount and auto-run.
THAT would be why mine is not enabled. I can't stand when that
happens
because I have so many various partitions attached in my setup.
But, as I said previously, mine started working again after I messed
with that a few years ago. Either there was a timely software update (possibly even as a fix to a reported bug) or ticking "Enable Volume Management" on for a few minutes generated a config file of some sort
in my daily user's home directory.
PPS DuckDuckGo did explicitly reference the Dolphin file manager in
case a user wants to stay as true to KDE applications as possible...
Asus Zenbook
Debian 13 Trixie
Mate DE
I have just noticed that this computer has stopped recognising USB thumbdrives.
They are listed in lsusb, but do not appear in my file browser
(caja),
nor in df.
The same machine sees the same USB thumbdrives when booted into
windows, so it appears not to be faulty hardware.
I can't say when this started happening; I haven't plugged in any
USB
thumbdrives for a few weeks.
Despite all this the machine boots from an external USB-connected
SSD.
It's using wired ethernet via a Startech multi function USB hub, so
it's obvious that the USB is largely working. I have tried
connecting
the thumbdrives directly into the computer's USB ports (i.e. not
via
external USB hubs) and no change.
Any suggestions? Any other info required?
Chris
Do you have a disk mounter thingy in your panel?ÿ Can you mount them
that way?
It *sounds* like your system has stopped *auto* mounting the
thumbdrives.
One other possibility: the thumbdrives are not FAT32, but are exFat
or NTFSÿ
and you don't have the FS infrasture needed installed (or something
likeÿ
that).ÿ Are these *large* thumbdrives (>= 64Gig)?
At Sat, 06 Jun 2026 20:38:36 +0100 Chris Ramsden <chris.ramsden@gmail.com> wrote:
Asus Zenbook
Debian 13 Trixie
Mate DE
I have just noticed that this computer has stopped recognising USB thumbdrives.
They are listed in lsusb, but do not appear in my file browser
(caja),
nor in df.
The same machine sees the same USB thumbdrives when booted into
windows, so it appears not to be faulty hardware.
I can't say when this started happening; I haven't plugged in any
USB
thumbdrives for a few weeks.
Despite all this the machine boots from an external USB-connected
SSD.
It's using wired ethernet via a Startech multi function USB hub, so
it's obvious that the USB is largely working. I have tried
connecting
the thumbdrives directly into the computer's USB ports (i.e. not
via
external USB hubs) and no change.
Any suggestions? Any other info required?
Chris
On Sat, 2026-06-06 at 16:32 -0400, Robert Heller wrote:
Do you have a disk mounter thingy in your panel??ÿ Can you mount them
that way?
It *sounds* like your system has stopped *auto* mounting the
thumbdrives.
One other possibility: the thumbdrives are not FAT32, but are exFat
or NTFS?ÿ
and you don't have the FS infrasture needed installed (or something
like?ÿ
that).?ÿ Are these *large* thumbdrives (>= 64Gig)?
I have tried with both large (256 GB) and small (4 GB). The small drive
is definitely FAT32. Both have worked in this computer in the past. ?ÿ
I have also just found it treats a USB CD/DVD drive in the same way;
appears in lsusb but not in df or in the file browser.?ÿThis is really annoying because the reason for plugging in the thumbdrive was to burn
a CD.
This DE doesn't appear to have a disk mounter.?ÿ
Chris.?ÿ
At Sat, 06 Jun 2026 21:43:13 +0100 Chris Ramsden
<chris.ramsden@gmail.com> wrote:
At Sat, 06 Jun 2026 20:38:36 +0100 Chris Ramsden
<chris.ramsden@gmail.com> wrote:
Asus Zenbook
Debian 13 Trixie
Mate DE
I have just noticed that this computer has stopped recognising
USB
thumbdrives.
They are listed in lsusb, but do not appear in my file browser
(caja),
nor in df.
The same machine sees the same USB thumbdrives when booted into windows, so it appears not to be faulty hardware.
I can't say when this started happening; I haven't plugged in
any
USB
thumbdrives for a few weeks.
Despite all this the machine boots from an external USB-
connected
SSD.
It's using wired ethernet via a Startech multi function USB
hub, so
it's obvious that the USB is largely working. I have tried
connecting
the thumbdrives directly into the computer's USB ports (i.e.
not
via
external USB hubs) and no change.
Any suggestions? Any other info required?
Chris
On Sat, 2026-06-06 at 16:32 -0400, Robert Heller wrote:
Do you have a disk mounter thingy in your panel? Can you mount
them
that way?
It *sounds* like your system has stopped *auto* mounting the
thumbdrives.
One other possibility: the thumbdrives are not FAT32, but are
exFat
or NTFS
and you don't have the FS infrasture needed installed (or
something
like
that). Are these *large* thumbdrives (>= 64Gig)?
I have tried with both large (256 GB) and small (4 GB). The small
drive
is definitely FAT32. Both have worked in this computer in the past.
I have also just found it treats a USB CD/DVD drive in the same
way;
appears in lsusb but not in df or in the file browser.This is
really
annoying because the reason for plugging in the thumbdrive was to
burn
a CD.
This DE doesn't appear to have a disk mounter.
You probably don't have it in you panel -- it might not be a default
applet,
but if you have mate-applets installed, it is available -- right
click on the
panel and select "add to panel", and you should get a list of applets
to add
and the disk mounter should be in that list.
(There are all sorts of reasons *not* to automount disks.)
Chris.
On Sat, 2026-06-06 at 16:37 -0400, Cindy Sue Causey wrote:
On Sat, 2026-06-06 at 20:38 +0100, Chris Ramsden wrote:
Asus Zenbook
Debian 13 Trixie
Mate DE
I have just noticed that this computer has stopped recognising
USB
thumbdrives.ÿ
They are listed in lsusb, but do not appear in my file browser
(caja),
nor in df.ÿ
The same machine sees the same USB thumbdrives when booted into
windows, so it appears not to be faulty hardware.ÿ
I can't say when this started happening; I haven't plugged in any
USB
thumbdrives for a few weeks.ÿ
No luck with either Dolphin or Thunar.ÿFor what it's worth: Thunar used to be installable (and thus also uninstallable) as a stand-alone package regardless of the desktop environment (e.g. LXDE). Thunar could be used to test if it sees
what's
currently not appearing otherwise.
<snip>Thanks Cindy, some useful ideas there, but I am doubtful that if it
doesn't appear in df, it's not going to be accessible to higher lever
tools.ÿ
I'll try some other file managers.ÿ
I have just noticed that this computer has stopped recognising USB thumbdrives.In that situation my first impulse would be to open a terminal and run
ÿAha!
On 6/6/26 2:38 PM, Chris Ramsden wrote:
ÿ
ÿÿIn that situation my first impulse would be to open a terminal and
I have just noticed that this computer has stopped recognising USB thumbdrives.
ÿ
run
ÿsudo journalctl -f
ÿthen plug in the offending drive and watch for errors
Or
ÿsudo dmesg | tail
ÿright after plugging an offending drive might catch something
ÿ
ÿ
ÿ
Next I might open gparted and investigate from that angle.
ÿ
On Sat, 2026-06-06 at 16:37 -0400, Cindy Sue Causey wrote:
On Sat, 2026-06-06 at 20:38 +0100, Chris Ramsden wrote:Thanks Cindy, some useful ideas there, but I am doubtful that if it
Asus Zenbook
Debian 13 Trixie
Mate DE
I have just noticed that this computer has stopped recognising USB
thumbdrives.
They are listed in lsusb, but do not appear in my file browser
(caja),
nor in df.
The same machine sees the same USB thumbdrives when booted into
windows, so it appears not to be faulty hardware.
I can't say when this started happening; I haven't plugged in any
USB
thumbdrives for a few weeks.
Hi.. This sounds familiar, like something I experienced with Thunar
ages ago. I can remember finally stumbling upon "Enable Volume
Management" in Thunar's settings. That option specifically references
removable drives, devices, and media.
No clue what triggered mine to fail. Maybe settings became corrupted
during a new debootstrap install or suchly. A glitchy software update
could have been the culprit, too.
Mine's currently unticked meaning I haven't had to enable that
feature
in a long time. Meanwhile, everything I plug in works as expected
these
days.
My thought process in replying is that it might help to try a search
on
keywords like volume management, Debian, and one's personal choice of
file manager.
Maybe it will help... Maybe.
Cindy :)
Afterthought: I tried my own suggested search. DuckDuckGo concluded
by
saying, "While you can use Caja for USB volume management, it might
not
handle automounting and other features as effectively as Dolphin or
other KDE-specific file managers."
For what it's worth: Thunar used to be installable (and thus also
uninstallable) as a stand-alone package regardless of the desktop
environment (e.g. LXDE). Thunar could be used to test if it sees
what's
currently not appearing otherwise.
"Enable Volume Management" setting can be found toward the bottom of:
Edit > Preferences > Advanced (tab)
In enabling my own just now, I see references to mount and auto-run.
THAT would be why mine is not enabled. I can't stand when that
happens
because I have so many various partitions attached in my setup.
But, as I said previously, mine started working again after I messed
with that a few years ago. Either there was a timely software update
(possibly even as a fix to a reported bug) or ticking "Enable Volume
Management" on for a few minutes generated a config file of some sort
in my daily user's home directory.
PPS DuckDuckGo did explicitly reference the Dolphin file manager in
case a user wants to stay as true to KDE applications as possible...
doesn't appear in df, it's not going to be accessible to higher lever
tools.
I'll try some other file managers.
ÿjournalctl says:
On 6/6/26 2:38 PM, Chris Ramsden wrote:
ÿ
ÿÿIn that situation my first impulse would be to open a terminal and
I have just noticed that this computer has stopped recognising USB thumbdrives.
ÿ
run
ÿsudo journalctl -f
ÿthen plug in the offending drive and watch for errors
Or
ÿsudo dmesg | tail
ÿright after plugging an offending drive might catch something
ÿ
ÿ
ÿ
Next I might open gparted and investigate from that angle.
ÿ
On 6/6/26 01:46 PM, Chris Ramsden wrote:
On Sat, 2026-06-06 at 16:37 -0400, Cindy Sue Causey wrote:
On Sat, 2026-06-06 at 20:38 +0100, Chris Ramsden wrote:
Asus Zenbook
Debian 13 Trixie
Mate DE
I have just noticed that this computer has stopped recognising
USB
thumbdrives.
They are listed in lsusb, but do not appear in my file browser
(caja),
nor in df.
The same machine sees the same USB thumbdrives when booted into windows, so it appears not to be faulty hardware.
I can't say when this started happening; I haven't plugged in
any
USB
thumbdrives for a few weeks.
Clearly, these drives are not being mounted!ÿ<snip>
Based on recent experience, df seems to be concerned only with
mounted
file systems.
So if your thumbdrive is not mounting df will not report it.
Bob
Jun 06 22:55:14 Zenbook kernel: usb 3-3.2: Device is not authorized forI have never before noticed such a message. I suspect that is directly
usage
On 6/6/26 5:00 PM, Chris Ramsden wrote:
Jun 06 22:55:14 Zenbook kernel: usb 3-3.2: Device is not authorized forI have never before noticed such a message. I suspect that is directly related to the problem, even if other classes of USB devices are
usage
working in spite of that message. Hopefully someone here on Debian
User will know how to proceed.
Another suspicious message is
Jun 06 22:57:23 Zenbook mtp-probe[9326]: bus: 2, device: 10 was not an
MTP device
wrote:
On Sat, 2026-06-06 at 16:07 -0500, nwe wrote:
On 6/6/26 2:38 PM, Chris Ramsden wrote:
I have just noticed that this computer has stopped recognising USB thumbdrives.
In that situation my first impulse would be to open a terminal and
run
sudo journalctl -f
then plug in the offending drive and watch for errors
Or
sudo dmesg | tail
right after plugging an offending drive might catch something
Next I might open gparted and investigate from that angle.
Aha!
Jun 06 22:43:16 Zenbook kernel: usb 3-3.2: New USB device found, idVendor=03f0, idProduct=3407, bcdDevice= 1.00
Jun 06 22:43:16 Zenbook kernel: usb 3-3.2: New USB device strings:
Mfr=1, Product=2, SerialNumber=3
Jun 06 22:43:16 Zenbook kernel: usb 3-3.2: Product: v135w
Jun 06 22:43:16 Zenbook kernel: usb 3-3.2: Manufacturer: HP
Jun 06 22:43:16 Zenbook kernel: usb 3-3.2: SerialNumber: 00000000000499
Jun 06 22:43:16 Zenbook kernel: usb 3-3.2: Device is not authorized for
usage
But gparted can't see this drive.
Also, there are many repeats of "Device is not authorized for usage"
for stuff that does appear to be working, e.g. the ethernet port and my
SSDs.
ÿ
ÿ
ÿ
On 6/6/26 6:12 PM, nwe wrote:
On 6/6/26 5:00 PM, Chris Ramsden wrote:
ÿÿI have never before noticed such a message. I suspect that is
Jun 06 22:55:14 Zenbook kernel: usb 3-3.2: Device is not
authorized for
usage
ÿ
directly related to the problem, even if other classes of USB
devices are working in spite of that message. Hopefully someone
here on Debian User will know how to proceed.
ÿ
ÿAnother suspicious message isÿ
Jun 06 22:57:23 Zenbook mtp-probe[9326]: bus: 2, device: 10 was not
an
MTP device
Could it be related?ÿ
USBGuard daemon running on many Linux distributions that blocks
hotplugged USB devices by default to prevent attacks.ÿ
On 6/6/26 5:00 PM, Chris Ramsden wrote:
Jun 06 22:55:14 Zenbook kernel: usb 3-3.2: Device is not authorizedI have never before noticed such a message. I suspect that is
for usage
directly related to the problem, even if other classes of USB devices
are working in spite of that message. Hopefully someone here on
Debian User will know how to proceed.
Another suspicious message is
Jun 06 22:57:23 Zenbook mtp-probe[9326]: bus: 2, device: 10 was not an
MTP device
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