I have a Dell XPS 15 9560 running Ubuntu 18.04 and I can't seem to get the memory card working. Everything I've tried, looking at other threads on here and elsewhere, but to no avail. Below is the details:
$ lspci -vvnn -s 03:00.0 03:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS525A PCI Express Card Reader [10ec:525a] (rev 01) Subsystem: Dell RTS525A PCI Express Card Reader [1028:07be] Physical Slot: 1 Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin A routed to IRQ 135 Region 1: Memory at ed400000 (32-bit, non-prefetchable) [size=4K] Capabilities: <access denied> Kernel driver in use: rtsx_pci Kernel modules: rtsx_pci $ lsmod | grep rtsx rtsx_usb 20480 0 rtsx_pci_ms 20480 0 memstick 16384 1 rtsx_pci_ms rtsx_pci_sdmmc 24576 0 rtsx_pci 57344 2 rtsx_pci_sdmmc,rtsx_pci_ms $ ls -la /dev | grep mmc $ sudo rmmod rtsx_pci_sdmmc rtsx_pci_ms rtsx_pci $ sudo modprobe rtsx_pci $ ls -la /dev | grep mmc
Based on the above, it's quite clear the module is loaded and ready, but the memory card is not seen by the kernel.
Other people seem to have success by inserting the memory card before boot, but that doesn't seem to work for me.
From memory this worked fine in 17.10.
Any help or pointers would be much appreciated.