> > > > > $ lspci -tv > > > > > -[0000:00]-+-00.0 Intel Corporation Device a715 > > >> Can I know the type of your platoform Lenovo LOQ? Is it a regular notebook computer? > > > > LOQ 15IRH8 - Type 82XV > > I am using a dual boot with Windows and Ubuntu 22.04 > > I still can't find information about the device a715 that I also can't find > this ID in kernel source code. I will dig kernel further when I have free time. According to the specs: 1x 13th Generation Intel Core i7-13620H Processor(Core i7-13620H) > > > > > >> The PCI EXT capabilities locate from 100h. Not sure if host controller driver limits to display them? > > I did not get your question. Can you say it again please? > > I meant offset 100h of PCI configuration space is a standard area [1]. > > "PCI Express extends the Configuration Space to 4096 bytes per Function as compared to 256 bytes > allowed by PCI Local Bus Specification. PCI Express Configuration Space is divided into a PCI 3.0 > compatible region, which consists of the first 256 bytes of a Function’s Configuration Space, and a > PCI Express Extended Configuration Space which consists of the remaining Configuration Space > 5 (see Figure 7-3)." > > I don't know why the PCI controller in your platform doesn't recognize the region, > and then _possibly_ cause driver failed to access 719h. > > > [1] https://blog.csdn.net/huangkangying/article/details/50570612 According to the specs: 2 x M.2 (PCI Express 4.0 x4) (1 free) 512 GB SSD M.2 2242 PCIe 4.0 x4 - NVM Express (NVMe) and I have actually inserted a second SSD myself Is the driver compatible with PCI 4.0?
