rtl8821ae: mod loads but no device yakkety kerns 4.4.0 4.70 and tip 4.80

Asked by BobDodds on 2016-08-16

Didn't earlier versions than yakkety have rtl8821ae working for wifi, maybe bluetooth too?

I have ubuntu yakkety 16.10 amd64 installed on a Nextbook Ares 11.6, Intel Atom z8500, and kernel 4.4.0 (several). It had android on it but I wiped it out so I can't look at their linux driver.

The rtl8821ae module loads but no device shows and lspci, lshw, utils show no Realtek etc words.

I also try the latest yakkety mainline and the mainline tip kernels, same thing, no device.

Some output:

Module Size Used by
rtl8723_common 24576 0
rtl8821ae 225280 0
btcoexist 53248 1 rtl8821ae
rtl_pci 28672 1 rtl8821ae
rtlwifi 73728 2 rtl_pci,rtl8821ae
mac80211 634880 3 rtl_pci,rtlwifi,rtl8821ae
cfg80211 569344 2 mac80211,rtlwifi
rfkill 24576 2 cfg80211
    description: Notebook
    product: CherryTrail (6789)
    vendor: Insyde
    version: Type1 - TBD by OEM
    serial: CHTT1A491057
    width: 64 bits
    capabilities: smbios-2.8 dmi-2.8 vsyscall32
    configuration: boot=normal chassis=notebook family=Type1 - SKU0 sku=6789 uuid=78563412-3412-7856-90AB-CDDEEFAABBCC
       description: Motherboard
       product: Cherry Trail CR
       vendor: Insyde
       physical id: 0
       version: Type2 - Board Version
       serial: Type2 - Board Serial Number
       slot: Type2 - Board Chassis Location
          description: BIOS
          vendor: INSYDE Corp.
          physical id: 0
          version: M1106.008
          date: 04/01/2016
          size: 64KiB
          capacity: 3008KiB
          capabilities: pci upgrade shadowing cdboot bootselect edd int9keyboard int14serial int17printer int10video acpi usb zipboot biosbootspecification netboot uefi
          description: CPU
          product: Intel(R) Atom(TM) x5-Z8300 CPU @ 1.44GHz
          vendor: Intel Corp.
          physical id: 4
          bus info: cpu@0
          version: Intel(R) Atom(TM) x5-Z8300 CPU @ 1.44GHz
          serial: To Be Filled By O.E.M.
          slot: CHV
          size: 1528MHz
          capacity: 1840MHz
          width: 64 bits
          clock: 83MHz
          capabilities: x86-64 fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm sse4_1 sse4_2 movbe popcnt tsc_deadline_timer aes rdrand lahf_lm 3dnowprefetch epb tpr_shadow vnmi flexpriority ept vpid tsc_adjust smep erms dtherm ida arat cpufreq
          configuration: cores=4 enabledcores=4 threads=4
             description: L1 cache
             physical id: 6
             slot: L1 Cache
             size: 32KiB
             capacity: 32KiB
             capabilities: synchronous internal write-back instruction
             configuration: level=1
             description: L2 cache
             physical id: 7
             slot: L2 Cache
             size: 1MiB
             capacity: 1MiB
             capabilities: synchronous internal write-back unified
             configuration: level=2
          description: L1 cache
          physical id: 5
          slot: L1 Cache
          size: 24KiB
          capacity: 24KiB
          capabilities: synchronous internal write-back data
          configuration: level=1
          description: System Memory
          physical id: 17
          slot: System board or motherboard
          size: 2GiB
             description: DIMM DDR3 Synchronous 1600 MHz (0.6 ns)
             vendor: 0000
             physical id: 0
             serial: 00000000
             slot: ChannelA-DIMM0
             size: 2GiB
             width: 16 bits
             clock: 1600MHz (0.6ns)
          description: Host bridge
          product: Braswell SoC Transaction Router
          vendor: Intel Corporation
          physical id: 100
          bus info: pci@0000:00:00.0
          version: 22
          width: 32 bits
          clock: 33MHz
          configuration: driver=iosf_mbi_pci
          resources: irq:0
             description: VGA compatible controller
             product: Braswell PCI Configuration Registers
             vendor: Intel Corporation
             physical id: 2
             bus info: pci@0000:00:02.0
             version: 22
             width: 64 bits
             clock: 33MHz
             capabilities: pm msi vga_controller bus_master cap_list rom
             configuration: driver=i915 latency=0
             resources: irq:309 memory:90000000-90ffffff memory:80000000-8fffffff ioport:1000(size=64) memory:c0000-dffff
        *-multimedia UNCLAIMED
             description: Multimedia controller
             product: Braswell ISP Camera
             vendor: Intel Corporation
             physical id: 3
             bus info: pci@0000:00:03.0
             version: 22
             width: 32 bits
             clock: 33MHz
             capabilities: pm msi bus_master cap_list
             configuration: latency=0
             resources: memory:91000000-913fffff
             description: Signal processing controller
             product: Braswell P-Unit Power Management
             vendor: Intel Corporation
             physical id: b
             bus info: pci@0000:00:0b.0
             version: 22
             width: 64 bits
             clock: 33MHz
             capabilities: msi pm bus_master cap_list
             configuration: driver=proc_thermal latency=0
             resources: irq:311 memory:91a18000-91a18fff
             description: USB controller
             product: Braswell USB xHCI Host Controller
             vendor: Intel Corporation
             physical id: 14
             bus info: pci@0000:00:14.0
             version: 22
             width: 64 bits
             clock: 33MHz
             capabilities: pm msi xhci bus_master cap_list
             configuration: driver=xhci_hcd latency=0
             resources: irq:310 memory:91a00000-91a0ffff
                product: xHCI Host Controller
                vendor: Linux 4.7.0-040700rc6-generic xhci-hcd
                physical id: 0
                bus info: usb@1
                logical name: usb1
                version: 4.07
                capabilities: usb-2.00
                configuration: driver=hub slots=7 speed=480Mbit/s
                   description: USB hub
                   product: USB2.0 Hub
                   vendor: Genesys Logic, Inc.
                   physical id: 2
                   bus info: usb@1:2
                   version: 85.36
                   capabilities: usb-2.00
                   configuration: driver=hub maxpower=100mA slots=4 speed=480Mbit/s
                      description: Keyboard
                      product: USB KEYBOARD
                      vendor: SINO WEALTH
                      physical id: 1
                      bus info: usb@1:2.1
                      version: 1.00
                      capabilities: usb-1.10
                      configuration: driver=usbhid maxpower=100mA speed=2Mbit/s
                      description: Mass storage device
                      product: USB Storage
                      vendor: Generic
                      physical id: 3
                      bus info: usb@1:2.3
                      logical name: scsi0
                      version: 2.72
                      serial: 000000000272
                      capabilities: usb-2.00 scsi emulated
                      configuration: driver=usb-storage maxpower=98mA speed=480Mbit/s
                         description: SCSI Disk
                         product: STORAGE DEVICE
                         vendor: Generic
                         physical id: 0.0.0
                         bus info: scsi@0:0.0.0
                         logical name: /dev/sda
                         version: 0272
                         size: 29GiB (31GB)
                         capabilities: removable
                         configuration: logicalsectorsize=512 sectorsize=512
                            physical id: 0
                            logical name: /dev/sda
                            size: 29GiB (31GB)
                            capabilities: partitioned partitioned:dos
                            configuration: signature=6e2c1046
                               description: Windows FAT volume
                               vendor: mkfs.fat
                               physical id: 1
                               logical name: /dev/sda1
                               version: FAT32
                               serial: 6ff3-3ead
                               size: 92MiB
                               capacity: 94MiB
                               capabilities: primary bootable boot fat initialized
                               configuration: FATs=2 filesystem=fat label=EFI
                               description: Linux filesystem partition
                               vendor: Linux
                               physical id: 2
                               logical name: /dev/sda2
                               logical name: /media/bob/linux
                               version: 1.0
                               serial: 59cc6602-d67d-4c3f-be86-ac6cce195517
                               size: 29GiB
                               capacity: 29GiB
                               capabilities: primary extended_attributes large_files ext2 initialized
                               configuration: filesystem=ext2 label=linux lastmountpoint=/media/bob/linux modified=2016-08-16 17:33:49 mount.fstype=ext2 mount.options=rw,nosuid,nodev,relatime,block_validity,barrier,user_xattr,acl mounted=2016-08-16 17:33:49 state=mounted
                product: xHCI Host Controller
                vendor: Linux 4.7.0-040700rc6-generic xhci-hcd
                physical id: 1
                bus info: usb@2
                logical name: usb2
                version: 4.07
                capabilities: usb-3.00
                configuration: driver=hub slots=6 speed=5000Mbit/s
        *-usb:1 UNCLAIMED
             description: USB controller
             product: Intel Corporation
             vendor: Intel Corporation
             physical id: 16
             bus info: pci@0000:00:16.0
             version: 22
             width: 32 bits
             clock: 33MHz
             capabilities: pm usb_device bus_master cap_list
             configuration: latency=0
             resources: memory:91400000-915fffff
        *-generic:1 UNCLAIMED
             description: Encryption controller
             product: Braswell Trusted Execution Engine Interface
             vendor: Intel Corporation
             physical id: 1a
             bus info: pci@0000:00:1a.0
             version: 22
             width: 32 bits
             clock: 33MHz
             capabilities: pm msi bus_master cap_list
             configuration: latency=0
             resources: memory:91900000-919fffff memory:91800000-918fffff
             description: ISA bridge
             product: Braswell Platform Controller Unit LPC
             vendor: Intel Corporation
             physical id: 1f
             bus info: pci@0000:00:1f.0
             version: 22
             width: 32 bits
             clock: 33MHz
             capabilities: isa bus_master cap_list
             configuration: driver=lpc_ich latency=0
             resources: irq:0
       description: Lithium Ion Battery
       product: SR Real Battery
       vendor: Intel SR 1
       physical id: 1
       version: Date
       serial: 123456789
       slot: I2C2
       configuration: voltage=3.8V
  *-power UNCLAIMED
       description: OEM Define 1
       product: OEM Define 5
       vendor: OEM Define 2
       physical id: 2
       version: OEM Define 6
       serial: OEM Define 3
       capacity: 42mWh

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Yakkety isn't even in Alpha1 stage yet so, yes you will get issues. It is not ready or stable.
I suggest you report a bug

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