You have been subscribed to a public bug: There is such a problem. UPSs are not working. Powercom and East - also. He began to find out what was the matter. If you enter once a second, the lsusb command, then we get the following: https://ibb.co/y0nfqMQ [url=https://ibb.co/y0nfqMQ][img]https://i.ibb.co/y0nfqMQ/zevstst-u18-lsusb.png[/img][/url]
it turns out that he sees UPS in USB, then he does not see. The output of sudo dmesg | grep usb is as follows: https://ibb.co/mRG548r [url=https://ibb.co/mRG548r][img]https://i.ibb.co/mRG548r/zevstst-u18-dmesg.png[/img][/url] Here we also see the problem. The fact is that there used to be Ub16 and there were no such problems. Installed 18 - and started. Put 16 again - no problem again. I began to find out in more detail. It turned out that on the kernel 4.11.12 - UPS work clearly, but as soon as the kernel 4.12-rc3 was installed. Everything. problems began. What have you done with the kernel since version 4.12? That some UPS are now down?? Would they fix it? ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: bionic bot-comment -- bug USB in Ubuntu https://bugs.launchpad.net/bugs/1995127 You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
![https://ibb.co/y0nfqMQ][img]https://i.ibb.co/y0nfqMQ/zevstst-u18-lsusb.png[/img][/url](https://ibb.co/y0nfqMQ][img]https://i.ibb.co/y0nfqMQ/zevstst-u18-lsusb.png[/img][/url){kind=link}
![https://ibb.co/mRG548r][img]https://i.ibb.co/mRG548r/zevstst-u18-dmesg.png[/img][/url](https://ibb.co/mRG548r][img]https://i.ibb.co/mRG548r/zevstst-u18-dmesg.png[/img][/url){kind=link}