agd reported incompatible with Ledger cosmos app

[mhofman]

Describe the bug

Stakecito reported being unable to use the latest agd (currently at agoric-upgrade-13) with a Ledger, and provided a link to a PR on another cosmos project which also had the issue and solved it by bumping ledger-go related packages.

The issue as reported:

the latest ag0/agd* binary is not compatible with Ledger anymore. The dependencies have to be upgraded. Could the team please look into that?

txs do not work anymore with Ledger (e.g. tx authz). We just get an empty error:

confirm transaction before signing and broadcasting [y/N]: y
Error: 
Usage: 

To Reproduce

Steps to reproduce the behavior:

1. e.g. agd tx authz using Ledger

Expected behavior

agd successfully signing tx using Ledger

Platform Environment

• agoric-sdk at agoric-upgrade-13 release
• Cosmos Ledger app at v2.34.12

Additional context

• Fix for MacOS Sonoma Ledger detection issues #8462 is already bumping zondax/hid to v0.9.2, and scheduled for inclusion in agoric-upgrade-14.
• We are currently using v0.14.1 of zondax/ledger-go, and the bump to v.0.14.3 seems to only be changing an error message and bumping the zondax/hid dep to v0.9.2.
• We are currently using v0.12.2 of cosmos/ledger-cosmos-go and the bump to v0.12.3 seems to only be lowering the size of a message buffer, and bumping zondax/hid to v0.9.2
• The changes to zondax/hid seem related only to MacOS detection issues

I suspect the actual fix is the message buffer size change in cosmos/ledger-cosmos-go. Regardless, updating these deps seems harmless.

[dckc]

I've got the ball on reproducing the problem using my spare Ledger (Ledger Nano S).

I updated the cosmos app to v2.34.12, as suggested by @mhofman .

p.s. problem reproduced and fix confirmed: #8798 (comment)

[JimLarson]

Confirmed the fix with manual testing on current master.

[JimLarson]

Confirmed the fix with manual testing of upgrade-14 rc0 on emerynet.

• Hardware: Ledger NanoX V2.0
• Firmware:
  • Secure Element 2.2.3
  • Microcontroller 2.30
  • Bootloader 1.16
• Cosmos App: v2.34.12

# set up local config to point at emerynet
agd --home . keys add testledger0 --ledger --coin-type 118
# ledger sees request and approves
tl0=$(agd --home . keys show testledger0 -a)
# provision account via faucet
agd --home . keys add testledger1 --ledger --coin-type 118 --account 1
tl1=$(agd --home . keys show testledger1 -a)
agd --home . tx bank send $tl0 $tl1 1000ubld --from testledger0
# works, verified transfer