Hi, this is your Linux kernel regression tracker speaking. I noticed a regression report in bugzilla.kernel.org. As many (most?) kernel developer don't keep an eye on it, I decided to forward it: https://bugzilla.kernel.org/show_bug.cgi?id=216426 > Mattia Orlandi 2022-08-29 17:04:21 UTC > > System > ------ > - Dell XPS 15 9500 > - 5.19.4 kernel > > Problem description > ------------------- > Whenever I plug and then unplug my laptop from AC power using the USB-C port, the system thinks it is still plugged in (i.e., the KDE applet reports "Plugged in but still discharging"). > If I check in Dell's BIOS, it correctly reports when the power supply is plugged/unplugged; `acpi -V` also correctly shows `Adapter 0: off-line`. > > On the other hand, `upower -d` incorrectly reports `/org/freedesktop/UPower/devices/line_power_ucsi_source_psy_USBC000o002` as `online: yes`. > Moreover, `journalctl` reports `ucsi_acpi USBC000:00: ucsi_handle_connector_change: GET_CONNECTOR_STATUS failed (-110)`. > > I'm testing the LTS kernel (5.15.63) and the issue does not occur, so I assume it's a regression bug, possibly introduced in kernel 5.18 (I tried downgrading the kernel to version 5.18.16 and the issue was already present). See the ticket for more details. Apologies if I forwarded it to the wrong folks, I cover a lot of ground and thus sometimes get things wrong. :-/ BTW, I'd also like to add the report to the list of tracked regressions to ensure it's doesn't fall through the cracks in the end: #regzbot introduced: v5.15..v5.18 https://bugzilla.kernel.org/show_bug.cgi?id=216426 #regzbot ignore-activity Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat) P.S.: As the Linux kernel's regression tracker I deal with a lot of reports and sometimes miss something important when writing mails like this. If that's the case here, don't hesitate to tell me in a public reply, it's in everyone's interest to set the public record straight.
