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I have an Adaptec AIC-7850T/7856T installed in a system running Ubuntu 14.04 LTS. It's connected to a Nikon LS-2000 scanner. It used to work with VueScan.

According to my notes, all I did to get it to originally work was plug it in. Ubuntu 14.04 LTX automatically recognized the device and installed the drivers. Only thing I had to do was change the rotary dial on the scanner to device 5. It just worked.

Now it doesn't seem to work. What I've done since then is:

  • Install Windows 10 on a separate hard drive
  • Run a Grub repair utility so I could select between Ubuntu and Windows via Grup, instead of directly at Bios screen.
  • Normal Ubuntu updates

    lsscsi doesn't list the device:

    [2:0:0:0] disk ATA Crucial_CT256MX1 MU01 /dev/sda
    [4:0:0:0] cd/dvd HL-DT-ST BDDVDRW UH12NS30 1.02 /dev/sr0
    [5:0:0:0] disk Generic- SD/MMC 1.00 /dev/sdb
    [5:0:0:1] disk Generic- Compact Flash 1.01 /dev/sdc
    [5:0:0:2] disk Generic- SM/xD-Picture 1.02 /dev/sdd
    [5:0:0:3] disk Generic- MS/MS-Pro 1.03 /dev/sde

    lsblk output

    NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
    sda 8:0 0 238.5G 0 disk
    ├─sda1 8:1 0 222.4G 0 part /
    ├─sda2 8:2 0 1K 0 part
    ├─sda3 8:3 0 208M 0 part
    └─sda5 8:5 0 15.9G 0 part [SWAP]
    sr0 11:0 1 1024M 0 rom
    nvme0n1 259:0 0 232.9G 0 disk
    ├─nvme0n1p1 259:1 0 500M 0 part
    ├─nvme0n1p2 259:2 0 231.8G 0 part
    ├─nvme0n1p3 259:3 0 457M 0 part
    └─nvme0n1p4 259:4 0 100M 0 part /boot/efi

    lspci lists the device:

    00:00.0 Host bridge: Intel Corporation 4th Gen Core Processor DRAM Controller (rev 06)
    00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor PCI Express x16 Controller (rev 06)
    00:14.0 USB controller: Intel Corporation 9 Series Chipset Family USB xHCI Controller
    00:16.0 Communication controller: Intel Corporation 9 Series Chipset Family ME Interface #1
    00:1a.0 USB controller: Intel Corporation 9 Series Chipset Family USB EHCI Controller #2
    00:1b.0 Audio device: Intel Corporation 9 Series Chipset Family HD Audio Controller
    00:1c.0 PCI bridge: Intel Corporation 9 Series Chipset Family PCI Express Root Port 1 (rev d0)
    00:1c.2 PCI bridge: Intel Corporation 82801 PCI Bridge (rev d0)
    00:1c.3 PCI bridge: Intel Corporation 9 Series Chipset Family PCI Express Root Port 4 (rev d0)
    00:1d.0 USB controller: Intel Corporation 9 Series Chipset Family USB EHCI Controller #1
    00:1f.0 ISA bridge: Intel Corporation 9 Series Chipset Family Z97 LPC Controller
    00:1f.2 SATA controller: Intel Corporation 9 Series Chipset Family SATA Controller [AHCI Mode]
    00:1f.3 SMBus: Intel Corporation 9 Series Chipset Family SMBus Controller
    01:00.0 VGA compatible controller: NVIDIA Corporation Device 1c03 (rev a1)
    01:00.1 Audio device: NVIDIA Corporation Device 10f1 (rev a1)
    02:00.0 Non-Volatile memory controller: Samsung Electronics Co Ltd Device a804
    03:00.0 PCI bridge: ASMedia Technology Inc. ASM1083/1085 PCIe to PCI Bridge (rev 03)
    04:01.0 SCSI storage controller: Adaptec AIC-7850T/7856T [AVA-2902/4/6 / AHA-2910] (rev 01)
    05:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 0c)

    lspci -v lists more details for the Adaptec card,

    04:01.0 SCSI storage controller: Adaptec AIC-7850T/7856T [AVA-2902/4/6 / AHA-2910] (rev 01)
    Flags: bus master, medium devsel, latency 32, IRQ 19
    I/O ports at d000 [disabled] [size=256]
    Memory at f7200000 (32-bit, non-prefetchable) [size=4K]
    Kernel driver in use: aic7xxx

    It does appear to have the necessary drivers installed.

    System is recognizing it as a SCSI card System Profiler info

    What am I missing? How do I get it working again?

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