Baking app freezes device from sleep

[utdrmac]

@greenknot @pscott

v2.2.11
This is perfectly repeatable; happens constantly. I've installed the 2.2.11 tezos baking app and started baking/endorsing on my test network. After a few minutes the screen turns off. Baking/endorsing continues to function.

Press either button of the nano s to wake up the screen. Press buttons to scroll through baking info screens. Within 1-3 screens the entire device locks up.

Prior to the UX rework (<= 2.2.9, this was not an issue). This freezing issue has also been mentioned by several other bakers in the Tezos bakers slack channels.

What's the proper way to debug this issue on the device?

[utdrmac]

Firmware 1.6.1
MCU 1.12

[pscott]

We've seen this issue and have added this task to our taskboard. Thanks for notifying us!

[forrestbice]

@utdrmac do you need to configure anything for the screen to turn off? I have version 2.2.11 and the screen is not turning off for me.

[utdrmac]

The screen does not turn off for me either. Burn-in is a real thing.

[ericwestbrook]

Here to up-doot the issue. I have the same symptoms as the original reporter - screen turns off - endorsements and bakes happen fine. if I touch a button the device freezes and stops responding. ./tezos-client list connected ledgers just hangs.

[utdrmac]

@pscott More reports from community about device freezes

I've noticed using the baking app 2.2.11, the Ledger only goes into screensaver mode after you BAKE a block, even endorsing does not send the screen to sleep. After that bake, the screen will go dark, but still baking. Just don't touch any buttons, or the Ledger will freeze or be invisible to "list connected ledgers."