Created attachment 307537 [details] Kernel config files After upgrading to 6.12.11 from kernel 6.11.11 some USB devices fail to show up. With 6.11.11 lsusb output is: >Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub >Bus 001 Device 002: ID 04b3:301a IBM Corp. 2-port low-power hub >Bus 001 Device 003: ID 04b3:301b IBM Corp. SK-8815 Keyboard >Bus 001 Device 004: ID 046d:c066 Logitech, Inc. G9x Laser Mouse >Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub >Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub >Bus 003 Device 002: ID 152a:8750 Thesycon Systemsoftware & Consulting GmbH D90 >MQA >Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub While with 6.12.11 it is: >Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub >Bus 001 Device 003: ID 04b3:301a IBM Corp. 2-port low-power hub >Bus 001 Device 004: ID 04b3:301b IBM Corp. SK-8815 Keyboard >Bus 001 Device 005: ID 046d:c066 Logitech, Inc. G9x Laser Mouse >Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub I have also attached kernel config files. I tried to find USB related patches but got lost in git logs. Hopefully somebody more experienced can find the reason for this problem.
It looks like one of two USB 3.0 controllers disappeared. If it's Renesas, enabling CONFIG_USB_XHCI_PCI_RENESAS should bring it back. If not, please post dmesg from 6.12 boot. There should be some xHCI error message there.
Please post sudo dmesg -t for both kernels.
(In reply to Michał Pecio from comment #1) > It looks like one of two USB 3.0 controllers disappeared. > > If it's Renesas, enabling CONFIG_USB_XHCI_PCI_RENESAS should bring it back. > > If not, please post dmesg from 6.12 boot. There should be some xHCI error > message there. Thank you Michał, you nailed it! Not a kernel bug but a setting error. I copied the kernel config from 6.11 and the Renesas config option was disabled by default. I'm now a happy user of 6.12 :)