Hello! First of all - I hope this is the right place to post this question. Please forgive me if it is not. And now onto the problem: I have a device which reports that ASPM is not supported yet reports ASPM L1 Enabled. This is PCIe switch's downstream port. I used lspci -vvvnn in version 3.5.5 to obtain: LnkCap: Port #16, Speed 8GT/s, Width x16, ASPM not supported LnkCtl: ASPM L1 Enabled; Disabled- CommClk- LnkSta: Speed 8GT/s, Width x16, TrErr- Train- SlotClk- DLActive+ BWMgmt- ABWMgmt- The same downstream port before the first use of the device after reboot reports: LnkCap: Port #16, Speed 8GT/s, Width x16, ASPM not supported LnkCtl: ASPM Disabled; Disabled- CommClk- LnkSta: Speed 8GT/s, Width x16, TrErr- Train- SlotClk- DLActive+ BWMgmt+ ABWMgmt+ (The 2 bottom lines differ). Is this normal behavior? Regards, Radosław Piliszek
