Created attachment 305861 [details] Linux 6.6.12 messages (output of `dmesg`) with system firmware 1.1.50 On the Dell OptiPlex 5055 with at least system firmware version 1.1.50, Linux 6.6.12 warns: $ dmesg | grep "be unreliable" [ 3.289270] usb: port power management may be unreliable $ dmesg | grep -e "DMI:" -e "Linux version" -e microcode [ 0.000000] Linux version 6.6.12.mx64.461 (root@theinternet.molgen.mpg.de) (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. OptiPlex 5055 Ryzen CPU/0P03DX, BIOS 1.1.50 07/28/2021 [ 3.488086] microcode: CPU0: patch_level=0x08001137 [ 3.488088] microcode: CPU2: patch_level=0x08001137 [ 3.488088] microcode: CPU3: patch_level=0x08001137 [ 3.488091] microcode: CPU1: patch_level=0x08001137 [ 3.488094] microcode: CPU6: patch_level=0x08001137 [ 3.488094] microcode: CPU5: patch_level=0x08001137 [ 3.488095] microcode: CPU7: patch_level=0x08001137 [ 3.530149] microcode: CPU4: patch_level=0x08001137 [ 3.530171] microcode: Microcode Update Driver: v2.2. $ usb-devices T: Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=480 MxCh=10 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=0000:01:00.0 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=09 Cnt=01 Dev#= 3 Spd=1.5 MxCh= 0 D: Ver= 1.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1 P: Vendor=413c ProdID=2113 Rev=01.08 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=06 Cnt=02 Dev#= 2 Spd=1.5 MxCh= 0 D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1 P: Vendor=046d ProdID=c077 Rev=72.00 S: Manufacturer=Logitech S: Product=USB Optical Mouse C: #Ifs= 1 Cfg#= 1 Atr=a0 MxPwr=100mA I: If#=0x0 Alt= 0 #EPs= 1 Cls=03(HID ) Sub=01 Prot=02 Driver=usbhid T: Bus=02 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=10000 MxCh= 4 D: Ver= 3.10 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=0000:01:00.0 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=03 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=480 MxCh= 4 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=0000:05:00.3 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=04 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=5000 MxCh= 4 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=0000:05:00.3 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
Created attachment 305862 [details] Output of `acpidump` with system firmware 1.1.50
*** This bug has been marked as a duplicate of bug 218490 ***
Created attachment 305907 [details] Linux 6.8-rc6+ messages with v2 patches (output of `dmesg`) with `usbcore.dyndbg=+p` and with system firmware 1.1.20 I tested this on a different system but the same model with a slightly older firmware version OptiPlex 5055 Ryzen CPU/0P03DX, BIOS 1.1.20 05/31/2019. The warning is gone. The two patches were applied on top of tag *v6.8-rc6*. 1. https://lore.kernel.org/all/20240220135946.4028553-1-mathias.nyman@linux.intel.com/ 2. https://lore.kernel.org/all/20240220135946.4028553-2-mathias.nyman@linux.intel.com/