TWIMC: this mail is primarily send for documentation purposes and for regzbot, my Linux kernel regression tracking bot. These mails usually contain '#forregzbot' in the subject, to make them easy to spot and filter. On 26.09.22 16:25, Thorsten Leemhuis wrote: > On 01.09.22 11:07, Thorsten Leemhuis wrote: >> 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 > > #regzbot introduced: f7090e0ef360d674f0 Looks like nobody yet check if the problem happens with mainline, so let's stick to the backport for now: #regzbot introduced: 0fbb5ce2f4267 > 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.
