This bug still exists in Kubuntu 20.04. Samsung Xcover B2710 isn't connected
properly.
Long ago I fixed it on Ubuntu 12.04 by "DisableSwitching=1" and forgot about
it. Now found this bugreport once again and old fix still works.
If my help is needed in debugging of this issue, I'm ready.
P.S. Doe
udippel, instead of ranting generally you could just use Debian instead
of Ubuntu. It's likely that you would not run into this bug.
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Title:
Samsu
Only as an update: As of today, it still doesn't work out of the box.
The workaround fixes it.
Allow me a bit of comment that sounds sarcastic, and yet bugs me as an oldtimer
with 20 years on Linux: I always advocate FOSS. Should someone hit this snag,
how can I honestly defend this shortcoming?
Hint:
It may well be that there is a timing problem if the dispatcher tries to
read the values when the storage driver has not completed the
initialization of the storage interface.
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http
Yes, it's correct to disable mode-switching when checking out the SCSI
attributes. This is what usb_modeswitch sees when a phone/modem is
plugged in. Then it has to determine if any action is required.
Bottom line:
The dispatcher part of the usb_modeswitch Ubuntu fork has trouble
reading the SCSI
This is with the same phone from #14
$ cd /sys/bus/usb/drivers/usb-storage/2-1.6:1.0/host7/target7:0:0/7:0:0:0
$ cat vendor
Samsung
$ cat model
GT-S5510T
$ cat rev
2.31
I couldn't find directory 'usb-storage' in /sys/usb/drivers unless I
did 'DisableSwitching=1'.
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The problem is obvious in the log from #14:
Warning: SCSI attribute "vendor" not readable.
Warning: SCSI attribute "model" not readable.
Warning: SCSI attribute "rev" not readable.
The filter "sMo=U209" which should prevent usb_modeswitch from doing
anything in this case does not work - because t
The problem is obvious in the log from #14:
Warning: SCSI attribute "vendor" not readable.
Warning: SCSI attribute "model" not readable.
Warning: SCSI attribute "rev" not readable.
The filter "sMo=U209" which should prevent usb_modeswitch from doing
anything in this case does not work - because t
I can confirm that this problem still exists with Kubuntu 14.04 and a
Samsung B2710.
Using the fix from comment #3 works.
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Title:
Samsung Xcover
Regarding comment #8. Can now confirm that usb_modeswitch is not
working with Kubuntu 12.04. Changing the config file to
'DisableSwitching=1' provides a fix.
Have enabled debugging (EnableLogging=1) and collected debugging
information with 'DisableSwitching=0'. File is attached.
** Attachmen
Please create a usb_modeswitch log file by editing
/etc/usb_modeswitch.conf and set EnableLogging to 1.
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Title:
Samsung Xcover 271 B2710 mass stor
I can confirm that the fix in ubuntu 12.04 does not fix the connection problems
of
a Samsung B2710 mobile phone. The phone is recognized by the kernel but does
not show
up as a usable device (the device file will not be created). (USB mass storage
mode)
After setting "DisableSwitching=1" in /etc
Please be a little bit more specific. Why do you conclude that usb_modeswitch
is responsible for the connection problems?
Mind that the orignal bug was about the mass storage mode of the phone, not
about connecting issues.
Also, the committed fix will prevent *any* mode-switching action for
this
Samsung 2710 does not connect in U-12.04. Reverted to
/etc/usb_modeswitch.conf => DisableSwitching=1 for fix.
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Title:
Samsung Xcover 271 B2710 ma
This was fixed in usb-modeswitch upstream update 20111023, available in
Ubuntu Precise. It affects all previous Ubuntu releases though.
** Changed in: usb-modeswitch (Ubuntu)
Status: Fix Committed => Fix Released
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Bug
** Changed in: usb-modeswitch (Ubuntu)
Status: Confirmed => Fix Committed
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Title:
Samsung Xcover 271 B2710 mass storage does not mount auto
Comment #6: Works for me with Samsung GT-S5510T.
The file at "/usr/share/usb_modeswitch/" is an archive
"configPack.tar.gz" that contained the various settings files.
[ 6917.232046] usb 1-9: new high speed USB device using ehci_hcd and address 3
[ 6917.432759] cdc_acm 1-9:1.0: ttyACM0: USB ACM d
Addendum:
Due to the way usb_modeswitch works, the udev rules line WILL match with all
devices using the Samsung ID, but the dispatcher mechanism will NOT start the
switching process except for the U209 modem. It will just exit.
So commenting out the udev rule can not be considered a general fix
No reply from the original contributor, but I finally found this
usb_modeswitch output via Google, after several fruitless attempts:
Received inquiry data (detailed identification)
-
Vendor String: SAMSUNG
Product String: SCH-U209 Install
Revision String: 2.31
The instant "fix" is O.K.
For a proper solution I need the "lsusb -v" output of the U209.
usb_modeswitch can check attributes of a device (USB or SCSI) to
identify specific models even if the USB IDs are identical. See the
notorious "05c6:1000" ID ...
I'll try to reach the original contributor o
Confirming the fix by Michael B also works with a Samsung S5510.
The problem is with usb_mode_switch and the associated udev rules in
/lib/udev.d/rules/40-usb_modeswitch.rules:
# Samsung U209
#ATTRS{idVendor}=="04e8", ATTRS{idProduct}=="f000", RUN+="usb_modeswitch
'%b/%k'"
These lines do not re
This is a problem with the usb-modeswitch, if you disable it in
/etc/usb_modeswitch.conf => DisableSwitching=1 then it works
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Title:
Samsung Xcove
This bug is still active in Natty.
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Title:
Samsung Xcover 271 B2710 mass storage does not mount automatically
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** Changed in: linux (Ubuntu)
Status: New => Confirmed
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Title:
Samsung Xcover 271 B2710 mass storage does not mount automatically
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