Why is that ? the L5 is not suppose to negociate this configuration ? (on the power supply, 12v⎓1.5A is available)
Yes, L5 is supposed to only negotiate 5V with 0.2.0 firmware. The type-C controller is susceptible to the infamous Vbus-to-CC-short failure and even though there are some mitigations in place on Evergreen, the risk of damage is still non-zero so we opted for the safe option of disallowing voltages higher than 5V to make sure it doesn’t happen at all.
The firmware version can be checked with:
purism@evergreen:~$ sudo cat /sys/kernel/debug/tps6598x/0-003f/customer_use
0x4c35445000000200
I got the phone on December 2020. It’s one of the firsts evergreen.
purism@pureos:~$ sudo cat /sys/kernel/debug/tps6598x/0-003f/customer_use
0x4c35445000000101
Should I flash the new firmware?
yes, you can flash the new version of the firmware.
amber or byzantium? I’m still on the former.
Maybe different PD firmware version. I’m on 0.2.0 (I upgraded)
Maybe you are manually overriding with magic i2c commands.
To be honest, I thought Purism was still always limiting it to 5V.
I’m on byzantium, but it’s the firmware, as @dos said few rows above. Latest version (0.2.0) actually limits the voltage to 5V.
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