Dear Heikki, dear all, I am still unable to reproduce the previous error messages I mentioned. In the meantime, the UCSI issues disappeared with 5.19.9 for me (!). I think this is related to a revert by Takashi Iwai [1] in 5.19.8. Given these data, would it be useful to test your patch against 5.19.9 or a more recent version? Thanks for all your efforts in supporting us here! All the best, Bastian [1] https://www.spinics.net/lists/linux-usb/msg230368.html On Friday, September 16, 2022 12:46:47 PM CEST Heikki Krogerus wrote: > Hi Bastian, > > On Fri, Sep 09, 2022 at 09:22:50AM +0300, Heikki Krogerus wrote: > > On Thu, Sep 08, 2022 at 07:01:34AM +0200, Bastian Rieck wrote: > > > Dear Heikki, > > > > > > > I'm sending these as an RFC first because I'm not done > > > > testing. > > > > > > > > I made a small modification to my original proposal (in the > > > > bug > > > > report). Now also connection during suspend should be > > > > covered. > > > > > > > > I would appreciate if you guys could test these again. If > > > > everything works, and the bug is fixed, let me know, and > > > > I'll add > > > > your Tested-by tags to the patches. > > > > > > Thanks so much for these changes—that's awesome! I have just > > > finished testing this against 5.19.7 (Arch Linux) with a > > > Lenovo X1 (Gen 9). > > > > > > I am very happy to see that, as far as I can tell, the issue > > > disappeared completely! > > > > > > However, I am receiving additional warnings via `journalctl` > > > that I did not receive before; I have attached this trace as > > > an additional log file. Nothing in there seems critical and I > > > can confirm that the system continues to operate normally. I > > > merely wanted to provide you with this additional information > > > in case it is of relevance. > > > > > > Please let me know if there's anything else I can do here; I > > > really appreciate the time you spent on this! > > > > Thank you for the report. That warning certainly needs to be > > sorted out before I send the final versions. I'll try to > > reproduce that. > I'm not getting anywhere with this one. Could you provide me with > the trace output from both module and ucsi events? > > To enable those events - assuming debugfs is mounted to > /sys/kernel/debug: > > % echo 1 > /sys/kernel/debug/tracing/events/ucsi/enable > % echo 1 > /sys/kernel/debug/tracing/events/module/enable > > Run the suspend resume cycle, and then dump the trace output to a > file: > > % cat /sys/kernel/debug/tracing/trace > ucsi_trace > > thanks,