[Note: this mail is primarily send for documentation purposes and/or for regzbot, my Linux kernel regression tracking bot. That's why I removed most or all folks from the list of recipients, but left any that looked like a mailing lists. These mails usually contain '#forregzbot' in the subject, to make them easy to spot and filter out.] On 30.09.22 13:20, Thorsten Leemhuis wrote: > 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 #regzbot invalid: not a regression, likely something related to hardware or firmware https://bugzilla.kernel.org/show_bug.cgi?id=216426#c22
