https://bugzilla.kernel.org/show_bug.cgi?id=218486 Bug ID: 218486 Summary: Linux warning `usb: port power management may be unreliable` on Dell OptiPlex 3620 Product: Drivers Version: 2.5 Hardware: All OS: Linux Status: NEW Severity: normal Priority: P3 Component: USB Assignee: drivers_usb@xxxxxxxxxxxxxxxxxxxxxx Reporter: pmenzel+bugzilla.kernel.org@xxxxxxxxxxxxx Regression: No Created attachment 305859 --> https://bugzilla.kernel.org/attachment.cgi?id=305859&action=edit Linux 6.6.12 messages (output of `dmesg`) with system firmware 1.28.0 On the Dell OptiPlex 3620 with at least system firmware version 1.25.0 and 1.28.0, Linux warns: $ dmesg | grep -e "DMI:" -e "Linux version" -e microcode [ 0.000000] Linux version 6.6.12.mx64.461 (root@xxxxxxxxxxxxxxxxxxxxxxxxx) (gcc (GCC) 12.3.0, GNU ld (GNU Binutils) 2.41) #1 SMP PREEMPT_DYNAMIC Thu Jan 18 10:47:08 CET 2024 [ 0.000000] DMI: Dell Inc. Precision Tower 3620/0MWYPT, BIOS 2.28.0 12/13/2023 $ grep microcode /proc/cpuinfo | uniq microcode : 0xf4 $ usb-devices T: Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=480 MxCh=16 D: Ver= 2.00 Cls=09(hub ) Sub=00 Prot=01 MxPS=64 #Cfgs= 1 P: Vendor=1d6b ProdID=0002 Rev=06.06 S: Manufacturer=Linux 6.6.12.mx64.461 xhci-hcd S: Product=xHCI Host Controller S: SerialNumber=0000:00:14.0 C: #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=0mA I: If#=0x0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub T: Bus=01 Lev=01 Prnt=01 Port=05 Cnt=01 Dev#= 3 Spd=1.5 MxCh= 0 D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1 P: Vendor=413c ProdID=2113 Rev=33.08 S: Product=Dell KB216 Wired Keyboard C: #Ifs= 2 Cfg#= 1 Atr=a0 MxPwr=100mA I: If#=0x0 Alt= 0 #EPs= 1 Cls=03(HID ) Sub=01 Prot=01 Driver=usbhid I: If#=0x1 Alt= 0 #EPs= 1 Cls=03(HID ) Sub=00 Prot=00 Driver=usbhid T: Bus=01 Lev=01 Prnt=01 Port=08 Cnt=02 Dev#= 5 Spd=12 MxCh= 0 D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1 P: Vendor=27b8 ProdID=01ed Rev=00.02 S: Manufacturer=ThingM S: Product=blink(1) mk2 S: SerialNumber=20010D87 C: #Ifs= 1 Cfg#= 1 Atr=80 MxPwr=120mA I: If#=0x0 Alt= 0 #EPs= 2 Cls=03(HID ) Sub=00 Prot=00 Driver=usbfs T: Bus=02 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=5000 MxCh=10 D: Ver= 3.00 Cls=09(hub ) Sub=00 Prot=03 MxPS= 9 #Cfgs= 1 P: Vendor=1d6b ProdID=0003 Rev=06.06 S: Manufacturer=Linux 6.6.12.mx64.461 xhci-hcd S: Product=xHCI Host Controller S: SerialNumber=0000:00:14.0 C: #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=0mA I: If#=0x0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.