Unable to open Suunto (EON Steel Black)

[deepdive07]

Subsurface 6.0.5504-local

I tried two dive computers connected via USB cable

Dive computer: Suunto EON Steel Black
SW: 3.0.253
HW G.2E.6
Model DW141

And

Dive computer: Suunto EON Steel
SW: 3.0.1497
HW G.7E.7
Model DW141

Laptop Computer
- **Hardware Model:** Lenovo ThinkPad L14 Gen 6
- **Memory:** 32.0 GiB
- **Processor:** Intel® Core™ Ultra 5 225U × 14
- **Graphics:** Intel® Graphics (ARL)
- **Disk Capacity:** 256.1 GB
Software Information:
- **Firmware Version:** R2SET29W (1.05 )
- **OS Name:** Ubuntu 24.04.3 LTS
- **OS Build:** (null)
- **OS Type:** 64-bit
- **GNOME Version:** 46
- **Windowing System:** Wayland
- **Kernel Version:** Linux 6.14.0-1019-oem

[Linus Torvalds]

On Thu, 5 Feb 2026 at 09:12, deepdive07 <deepd...@gmail.com> wrote:
>
> I tried two dive computers connected via USB cable

Do you have permissions to the USB device? Typically something like
adding a udev file:

/etc/udev/rules.d/99-suunto.rules

containing just a single line like

SUBSYSTEM=="usb", ATTRS{idVendor}=="1493", MODE="0660", GROUP="plugdev"

which gives the 'plugdev' group access to Suunto USB devices (check
that you are in the plugdev group, obviously - just run 'id' from the
terminal).

Alternatively, if you don't care, just make the MODE="0666" to make it
world-readable and writable and the groups don't matter (but obviously
that gives everybody access to that device, it's the "simple but not
really proper" way to do things)

And then after adding that, reload the udev rules:

$ sudo udevadm control --reload-rules
$ sudo udevadm trigger

should make it accessible.

Tweak for whatever things Ubuntu does - there could be distro-specific
issues (ie different distributions might use different groups for
desktop logins)

Linus