From Newsgroup: alt.os.linux.debian

In summer I use to copy track data from my Garmin GPSMap60 to
my computer. Late last year I bought a new computer and installed
Debian 12. Now I find I can't make it 'talk' to the GPS.

I start the GPS and connect to the computer via USB. dmesg and
lsusb output looks normal to me. I still have the old computer
running Debian 10 to compare with.

The GPS display at first shows the icon indicating it is connected.
After some five seconds there is a beep and the icon goes away and
data transfer does not work.

I also have an oldish laptop (Lenovo EX230) running Debian 12. I get
the exact same behaviour with this computer. Using the old Debian 10
computer data transfer works just fine so I have a work-around.

As far as I can see I have all relevant MTP packages installed. I have
tried booting with different kernels. No luck so far.

So far internet search has not produced any break-throughs. https://wiki.openstreetmap.org/wiki/USB_Garmin_on_GNU/Linux
is the best hit so far but making sure my system complies with
the advice here does not help.

Any ideas?

TIA

/Martin
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From Newsgroup: alt.os.linux.debian

On 15/06/2024 09:56, Martin Sch||||n wrote:

In summer I use to copy track data from my Garmin GPSMap60 to
my computer. Late last year I bought a new computer and installed
Debian 12. Now I find I can't make it 'talk' to the GPS.

I start the GPS and connect to the computer via USB. dmesg and
lsusb output looks normal to me. I still have the old computer
running Debian 10 to compare with.

[SNIP]

Any ideas?

TIA

/Martin

The USB port is going into powersave. My Debian laptops do it after 2 secs.

This fixes the issue:

echo -1 > /sys/module/usbcore/parameters/autosuspend

I could probably figure out how to disable autosuspend on boot but the
above fixes the problem when it occurs.

It was a complete bitch to find out why this was happening.

Andy
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From Newsgroup: alt.os.linux.debian

Den 2024-06-16 skrev mm0fmf <none@invalid.com>:

On 15/06/2024 09:56, Martin Sch||||n wrote:

In summer I use to copy track data from my Garmin GPSMap60 to
my computer. Late last year I bought a new computer and installed
Debian 12. Now I find I can't make it 'talk' to the GPS.

I start the GPS and connect to the computer via USB. dmesg and
lsusb output looks normal to me. I still have the old computer
running Debian 10 to compare with.

[SNIP]

Any ideas?

TIA

/Martin

The USB port is going into powersave. My Debian laptops do it after 2 secs.

This fixes the issue:

echo -1 > /sys/module/usbcore/parameters/autosuspend

I could probably figure out how to disable autosuspend on boot but the
above fixes the problem when it occurs.

It was a complete bitch to find out why this was happening.

Andy

Thanks Andy, this looks like a possibility although I don't understand
why it does not affect my SanDisk ClipJam which is charged through USB
while I transfer podcast files to it.

Anyway, I have tested your command both as stated and with sudo but I am
denied access to that file regardless and the issue remains.

/Martin
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From Newsgroup: alt.os.linux.debian

On 17/06/2024 08:57, Martin Sch||||n wrote:

Den 2024-06-16 skrev mm0fmf <none@invalid.com>:

On 15/06/2024 09:56, Martin Sch||||n wrote:

In summer I use to copy track data from my Garmin GPSMap60 to
my computer. Late last year I bought a new computer and installed
Debian 12. Now I find I can't make it 'talk' to the GPS.

I start the GPS and connect to the computer via USB. dmesg and
lsusb output looks normal to me. I still have the old computer
running Debian 10 to compare with.

[SNIP]

Any ideas?

TIA

/Martin

The USB port is going into powersave. My Debian laptops do it after 2 secs. >>
This fixes the issue:

echo -1 > /sys/module/usbcore/parameters/autosuspend

I could probably figure out how to disable autosuspend on boot but the
above fixes the problem when it occurs.

It was a complete bitch to find out why this was happening.

Andy

Thanks Andy, this looks like a possibility although I don't understand
why it does not affect my SanDisk ClipJam which is charged through USB
while I transfer podcast files to it.

Anyway, I have tested your command both as stated and with sudo but I am denied access to that file regardless and the issue remains.

/Martin

It doesn't work with sudo for me. Do sudo -s to get a root shell then
issue the command.

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From Newsgroup: alt.os.linux.debian

Den 2024-06-17 skrev mm0fmf <none@invalid.com>:

On 17/06/2024 08:57, Martin Sch||||n wrote:

Den 2024-06-16 skrev mm0fmf <none@invalid.com>:

On 15/06/2024 09:56, Martin Sch||||n wrote:

In summer I use to copy track data from my Garmin GPSMap60 to
my computer. Late last year I bought a new computer and installed
Debian 12. Now I find I can't make it 'talk' to the GPS.

I start the GPS and connect to the computer via USB. dmesg and
lsusb output looks normal to me. I still have the old computer
running Debian 10 to compare with.

[SNIP]

Any ideas?

TIA

/Martin

The USB port is going into powersave. My Debian laptops do it after 2 secs. >>>
This fixes the issue:

echo -1 > /sys/module/usbcore/parameters/autosuspend

I could probably figure out how to disable autosuspend on boot but the
above fixes the problem when it occurs.

It was a complete bitch to find out why this was happening.

Andy

Thanks Andy, this looks like a possibility although I don't understand
why it does not affect my SanDisk ClipJam which is charged through USB
while I transfer podcast files to it.

Anyway, I have tested your command both as stated and with sudo but I am
denied access to that file regardless and the issue remains.

/Martin

It doesn't work with sudo for me. Do sudo -s to get a root shell then
issue the command.

Yes, some more internet search gave me that information. The command I
use (and it solves my problem) looks like this:

sudo sh -c 'echo -1 > /sys/module/usbcore/parameters/autosuspend'

/Martin
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