Re: [gentoo-user] Re: KDE 5 MTP failure

[Peter Humphrey]

On Sunday 18 Jun 2017 20:48:53 Walter Dnes wrote:
> On Mon, Jun 19, 2017 at 01:19:58AM +0100, Peter Humphrey wrote
> 
> > On Sunday 18 Jun 2017 14:11:02 Walter Dnes wrote:
> > > An extra bit of debugging...
> > > 
> > > * switch to message log console (tty12) with {CTRL}{ALT}{F12}
> > > 
> > > * attach device
> > > 
> > > * note the output
> > 
> > USB device detected, using xhci-hcd.
> 
>   YIKES 
> 
> * Connect your device again
> 
> * As root, execute "fdisk -l"
> 
> * If you see an unexpected partion, e.g. /dev/sdb1, as root
>   "mount -t auto /dev/sdb1 $HOME/nexus"

Just the SSD in this box and its partitions.

> * "cd $HOME/nexus" and "ls -al".  Do you see anything?

No, because still nothing's mounted there. I tried adding a couple more 
options to the mount command, with no discernible effect: -o nonempty -o 
direct_io.

>   If that works, you've mounted it just like a USB key.  Make sure that
> you "cd" away from the device, and "umount $HOME/nexus".
> 
>   Check you device's mounting options.  I've seen devices that have
> options to mount as...
>   - regular USB devices
>   - MTP devices
>   - PTP (direct photo-to-printer) devices
> 
>   Select the mount option most convenient for you.

Maybe I have something lacking in my kernel config.

-- 
Regards
Peter

Re: [gentoo-user] Re: KDE 5 MTP failure

[Walter Dnes]

On Mon, Jun 19, 2017 at 01:19:58AM +0100, Peter Humphrey wrote
> On Sunday 18 Jun 2017 14:11:02 Walter Dnes wrote:
> 
> > An extra bit of debugging...
> > 
> > * switch to message log console (tty12) with {CTRL}{ALT}{F12}
> > 
> > * attach device
> > 
> > * note the output
> 
> USB device detected, using xhci-hcd.

  YIKES 

* Connect your device again

* As root, execute "fdisk -l"

* If you see an unexpected partion, e.g. /dev/sdb1, as root
  "mount -t auto /dev/sdb1 $HOME/nexus"

* "cd $HOME/nexus" and "ls -al".  Do you see anything?

  If that works, you've mounted it just like a USB key.  Make sure that
you "cd" away from the device, and "umount $HOME/nexus".

  Check you device's mounting options.  I've seen devices that have
options to mount as...
  - regular USB devices
  - MTP devices
  - PTP (direct photo-to-printer) devices

  Select the mount option most convenient for you.

-- 
Walter Dnes 
I don't run "desktop environments"; I run useful applications

Re: [gentoo-user] Re: KDE 5 MTP failure

[Peter Humphrey]

On Sunday 18 Jun 2017 14:11:02 Walter Dnes wrote:
> On Sun, Jun 18, 2017 at 04:04:11PM +0100, Peter Humphrey wrote
> 
>   Did you "emerge sys-fs/fuse"?  The default /etc/fuse.conf is OK.

Yes, as I said.

>   "Troubleshooting" instructions in https://wiki.gentoo.org/wiki/MTP say
> that some devices must be turned on and have the active screen; i.e. do
> not allow screensaver/screenlock.

Yes, I've tried that.

> An extra bit of debugging...
> 
> * switch to message log console (tty12) with {CTRL}{ALT}{F12}
> 
> * attach device
> 
> * note the output

USB device detected, using xhci-hcd.

> * remove device
> 
> * note output

USB disconnect.

> * switch back to X (usually) {CTRL}{ALT}{F7}

 not necessary in a VT.

USB seems to be working okay, but either fuse or mtpfs isn't. I also tried 
the kio-mtp method, but that didn't show anything either.

-- 
Regards
Peter

Re: [gentoo-user] Re: KDE 5 MTP failure

[Walter Dnes]

On Sun, Jun 18, 2017 at 04:04:11PM +0100, Peter Humphrey wrote

  Did you "emerge sys-fs/fuse"?  The default /etc/fuse.conf is OK.

  "Troubleshooting" instructions in https://wiki.gentoo.org/wiki/MTP say
that some devices must be turned on and have the active screen; i.e. do
not allow screensaver/screenlock.  An extra bit of debugging...

* switch to message log console (tty12) with {CTRL}{ALT}{F12}

* attach device

* note the output

* remove device

* note output

* switch back to X (usually) {CTRL}{ALT}{F7}

-- 
Walter Dnes 
I don't run "desktop environments"; I run useful applications

Re: [gentoo-user] Re: KDE 5 MTP failure

[Peter Humphrey]

On Friday 16 Jun 2017 14:35:21 Walter Dnes wrote:
> On Fri, Jun 16, 2017 at 08:23:42AM -0700, Ian Zimmerman wrote
> 
> > On 2017-06-16 14:23, Grant Edwards wrote:
> > > This is not the first time I've seen somebody mention this "songs and
> > > pictures" stuff. I don't understand.  When I use mtpfs to mount my
> > > Android devices, a "file-level view" is exactly what I get: I see the
> > > device's root directory and everything underneath it the exact same
> > > way I would if it were a USB-storage device.
> > 
> > The last time I tried MTP was on Debian maybe 2 years ago or 3 years,
> > using the jmtpfs package.  IIRC this was what happened; yes, I could see
> > individual files, but only certain types, and only in certain
> > directories.
> 
>   That package is currently keyworded.  Use sys-fs/simple-mtpfs instead.
> It simply works; and it works simply.  From the command line

Thanks for the instructions, Walter.

> 1) create a working mount directory, e.g. $HOME/tablet

$ mkdir ~/nexus

> 2) attach smartphone/tablet/whatever to USB port
> 
> 3) sudo simple-mtpfs -o allow_other $HOME/tablet

$ sudo modprobe fuse
$ sudo simple-mtpfs -o allow_other ~/nexus
Device 0 (VID=18d1 and PID=4ee1) is a Google Inc (for LG 
Electronics/Samsung) Nexus 4/5/7/10 (MTP).
Android device detected, assigning default bug flags

(Actually it's a Nexus 6P phone.)

> 4) cd $HOME/tablet

$ ls -la
total 8.0K
drwxr-xr-x  2 prh prh 4.0K Jun 18 15:05 .
drwxr-xr-x 36 prh prh 4.0K Jun 18 15:05 ..

> 5) do whatever
> 
> 6) cd
> 
> 7) sudo fusermount -u $HOME/tablet

$ sudo fusermount -u nexus
fusermount: failed to unmount /home/prh/nexus: Invalid argument

...because it was never mounted - or if it was it was dropped immediately. 
Dmesg has no record of anything being mounted.

I've tried two cables and both USB-2 and USB-3 ports on this box, and I've 
tried fuse as a module and built in. I have the sys-fs/fuse package 
installed.

I also tried an older Nexus-7 with the same result, but when I tried a 
Samsung Galaxy Tab S I got this (as root):

# simple-mtpfs -o allow_other /home/prh/nexus
Device 0 (VID=04e8 and PID=6860) is a Samsung Galaxy models (MTP).
LIBMTP ERROR: couldnt parse extension samsung.com/devicestatus:3

Well, Samsung do like to do their own thing.

What else might I be missing? I'm not so bothered about the two tablets, but 
it would be good to be able to connect the phone and play with it.

> 8) dettach smartphone/tablet/whatever from USB port

-- 
Regards
Peter

Re: [gentoo-user] Re: KDE 5 MTP failure

[Walter Dnes]

On Fri, Jun 16, 2017 at 08:23:42AM -0700, Ian Zimmerman wrote
> On 2017-06-16 14:23, Grant Edwards wrote:
> 
> > This is not the first time I've seen somebody mention this "songs and
> > pictures" stuff. I don't understand.  When I use mtpfs to mount my
> > Android devices, a "file-level view" is exactly what I get: I see the
> > device's root directory and everything underneath it the exact same
> > way I would if it were a USB-storage device.
> 
> The last time I tried MTP was on Debian maybe 2 years ago or 3 years,
> using the jmtpfs package.  IIRC this was what happened; yes, I could see
> individual files, but only certain types, and only in certain
> directories.

  That package is currently keyworded.  Use sys-fs/simple-mtpfs instead.
It simply works; and it works simply.  From the command line

1) create a working mount directory, e.g. $HOME/tablet

2) attach smartphone/tablet/whatever to USB port

3) sudo simple-mtpfs -o allow_other $HOME/tablet

4) cd $HOME/tablet

5) do whatever

6) cd

7) sudo fusermount -u $HOME/tablet

8) dettach smartphone/tablet/whatever from USB port

-- 
Walter Dnes 
I don't run "desktop environments"; I run useful applications

Re: [gentoo-user] Re: KDE 5 MTP failure

[Walter Dnes]

On Thu, Jun 15, 2017 at 04:42:19PM -0700, Ian Zimmerman wrote

> Another option (Android only, of course) is the adb program in
> android-tools package.  I prefer it over MTP (independent of
> implementation issues) because it gives me file-level view of the
> device, rather than dealing in "pictures" and "songs".

  What implements that "Clippy-level-helpfull-feature"?  Is that KDE or
that particular mtpfs implementation?  I use simple-mtpfs and I run mc
(Midnight Commander) to move/copy/delete files.  Even a commandline...

[d531][waltdnes][~] sudo simple-mtpfs -o allow_other /home/waltdnes/tablet
Device 0 (VID=22b8 and PID=2e82) is a Motorola Moto G (ID2).
Android device detected, assigning default bug flags

[d531][waltdnes][~] cd tablet

[d531][waltdnes][~/tablet] ls -al
total 0
drwxrwxr-x 2 waltdnes users 0 Dec 31  1969 Alarms
drwxrwxr-x 2 waltdnes users 0 Dec 31  1969 Android
drwxrwxr-x 2 waltdnes users 0 Dec 31  1969 DCIM
drwxrwxr-x 2 waltdnes users 0 Dec 31  1969 Download
drwxrwxr-x 2 waltdnes users 0 Dec 31  1969 Movies
drwxrwxr-x 2 waltdnes users 0 Dec 31  1969 Music
drwxrwxr-x 2 waltdnes users 0 Dec 31  1969 My_stuff
drwxrwxr-x 2 waltdnes users 0 Dec 31  1969 Notifications
drwxrwxr-x 2 waltdnes users 0 Dec 31  1969 Pictures
drwxrwxr-x 2 waltdnes users 0 Dec 31  1969 Podcasts
drwxrwxr-x 2 waltdnes users 0 Dec 31  1969 Ringtones


-- 
Walter Dnes 
I don't run "desktop environments"; I run useful applications