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  • #87256
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    Alexander
    Participant

    I tested it with a laptop and no power connected to the laptop, it makes no difference at all. What makes a difference is using the USB2 port of the laptop instead of a USB3 port. The Problem is well known to only affect USB3 ports and I’m pretty sure grounding issues play no part at all.

    #81730
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    Alexander
    Participant

    I have a Sandisk Extreme Go 64GB USB 3.1 and it does not work at all with my QU-PAC, no chance.
    I bought a “SanDisk SDSSDEXT-500G-G25 500GB Extreme 500” (Portable SSD) which works nicely so far.

    Only niggle – QU-SB mis-reports time remaining – it cant seem to cope with a device that can deal with more than 8 hours recording time – just rubbish and short-sighted programming which doesnt affect anything other than a stupid display telling you how much time is remaining.

    My QU-PAC formats the drive using a FAT32 file system which can not store files larger than 4GB, at 24bit/48kHz this means 8h17min. I don’t know what happens if the size of a track reaches 4GB, I suspect the recording just stops.

    #78359
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    Alexander
    Participant

    Update: The problem also occurs with firmware 1.94 – Rev 4557 but it’s _very_ rare and unpredictable (~once a day)

    #78229
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    Alexander
    Participant

    I didn’t have the problem with Qu-Pac 1.94 – Rev 4557. Then I upgraded to 1.95 – Rev 4561 and the problem started.

    Every couple of minutes the weird distortion occurs for a couple of seconds, very repeatable. I used the QU-PAC to record the signal from my speakers while playing a piece.

    I tried re-booting the computer, hard-resetting the Qu-Pac, unplugging everything etc. didn’t help. I did a firmware-downgrade to 1.94 – Rev 4557 and now the problem is gone.

    I put my information here instead of the Google doc, and I’ll happily answer more questions about my setup or try stuff.

    Mixer: Qu-Pac
    Computer: Laptop, Debian testing, kernel 4.17.0-3-amd64 #1 SMP Debian 4.17.17-1 (2018-08-18) x86_64 GNU/Linux
    Processor: Intel(R) Core(TM) i7-6700HQ CPU @ 2.60GHz
    USB-B is connected to the laptop directly, the only other external USB device is the mouse.
    It’s connected to a USB-3.0 port since all 4 ports are USB-3.0
    Buffer setting: I start jack like this: jackd -r -dalsa -dhw:2 -r48000 -p1024 -n3 -i32 -o32 (no realtime, 1024 samples buffer size). I also tested 256 as buffer size, no difference.
    The noise occurs during playback, I didn’t test what happens if I use a known-sane audio source for recording.
    Power Management: I’m not sure. When I leave the laptop alone long enough the screen does turn off but that’s far longer than the couple of minutes before the distortion occurs.
    Wifi: There is a built-in Wifi but I wasn’t using it (ifconfig wlp3s0 down)
    Other USB devices: The built-in video camera and bluetooth use the internal USB, output of “lsusb -t”:
    /: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/8p, 5000M
    /: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/16p, 480M
    |__ Port 3: Dev 16, If 4, Class=Audio, Driver=snd-usb-audio, 480M
    |__ Port 3: Dev 16, If 2, Class=Audio, Driver=snd-usb-audio, 480M
    |__ Port 3: Dev 16, If 0, Class=(Defined at Interface level), Driver=, 480M
    |__ Port 3: Dev 16, If 5, Class=Audio, Driver=snd-usb-audio, 480M
    |__ Port 3: Dev 16, If 3, Class=Audio, Driver=snd-usb-audio, 480M
    |__ Port 3: Dev 16, If 1, Class=Audio, Driver=snd-usb-audio, 480M
    |__ Port 4: Dev 14, If 1, Class=Human Interface Device, Driver=usbhid, 12M
    |__ Port 4: Dev 14, If 0, Class=Human Interface Device, Driver=usbhid, 12M
    |__ Port 7: Dev 3, If 0, Class=Vendor Specific Class, Driver=, 12M
    |__ Port 8: Dev 4, If 1, Class=Wireless, Driver=btusb, 12M
    |__ Port 8: Dev 4, If 0, Class=Wireless, Driver=btusb, 12M
    |__ Port 9: Dev 5, If 0, Class=Video, Driver=uvcvideo, 480M
    |__ Port 9: Dev 5, If 1, Class=Video, Driver=uvcvideo, 480M

    Here’s the output of “lshw”, showing all the hardware:

    description: Notebook
    product: P640RE (Not Applicable)
    vendor: XMG
    version: Not Applicable
    serial: Not Applicable
    width: 64 bits
    capabilities: smbios-3.0.0 dmi-3.0.0 smp vsyscall32
    configuration: boot=normal chassis=notebook family=Not Applicable sku=Not Applicable uuid=80FA5B24-5D8F-0000-0000-000000000000
    *-core
    description: Motherboard
    product: P640RE
    vendor: XMG
    physical id: 0
    version: Not Applicable
    serial: Not Applicable
    slot: Not Applicable
    *-firmware
    description: BIOS
    vendor: American Megatrends Inc.
    physical id: 0
    version: 1.05.12
    date: 01/05/2016
    size: 64KiB
    capacity: 5MiB
    capabilities: pci upgrade shadowing cdboot bootselect socketedrom edd int5printscreen int9keyboard int17printer acpi usb biosbootspecification uefi
    *-cache:0
    description: L1 cache
    physical id: 13
    slot: L1 Cache
    size: 128KiB
    capacity: 128KiB
    capabilities: synchronous internal write-back data
    configuration: level=1
    *-cache:1
    description: L1 cache
    physical id: 14
    slot: L1 Cache
    size: 128KiB
    capacity: 128KiB
    capabilities: synchronous internal write-back instruction
    configuration: level=1
    *-cache:2
    description: L2 cache
    physical id: 15
    slot: L2 Cache
    size: 1MiB
    capacity: 1MiB
    capabilities: synchronous internal write-back unified
    configuration: level=2
    *-cache:3
    description: L3 cache
    physical id: 16
    slot: L3 Cache
    size: 6MiB
    capacity: 6MiB
    capabilities: synchronous internal write-back unified
    configuration: level=3
    *-cpu
    description: CPU
    product: Intel(R) Core(TM) i7-6700HQ CPU @ 2.60GHz
    vendor: Intel Corp.
    physical id: 17
    bus info: cpu@0
    version: Intel(R) Core(TM) i7-6700HQ CPU @ 2.60GHz
    serial: To Be Filled By O.E.M.
    slot: U3E1
    size: 3204MHz
    capacity: 3500MHz
    width: 64 bits
    clock: 100MHz
    capabilities: lm 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 pdpe1gb rdtscp x86-64 constant_tsc art arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf tsc_known_freq pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm 3dnowprefetch cpuid_fault epb invpcid_single pti ssbd ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 hle avx2 smep bmi2 erms invpcid rtm mpx rdseed adx smap clflushopt intel_pt xsaveopt xsavec xgetbv1 xsaves dtherm ida arat pln pts hwp hwp_notify hwp_act_window hwp_epp flush_l1d cpufreq
    configuration: cores=4 enabledcores=4 threads=8
    *-memory
    description: System Memory
    physical id: 18
    slot: System board or motherboard
    size: 48GiB
    *-bank:0
    description: SODIMM DDR4 Synchronous 2133 MHz (0.5 ns)
    product: 16ATF2G64HZ-2G1A1
    vendor: Micron
    physical id: 0
    serial: 16209500
    slot: ChannelA-DIMM0
    size: 16GiB
    width: 64 bits
    clock: 2133MHz (0.5ns)
    *-bank:1
    description: SODIMM DDR4 Synchronous 2133 MHz (0.5 ns)
    product: KHX2133C13S4/8G
    vendor: Kingston
    physical id: 1
    serial: 10542265
    slot: ChannelA-DIMM1
    size: 8GiB
    width: 64 bits
    clock: 2133MHz (0.5ns)
    *-bank:2
    description: SODIMM DDR4 Synchronous 2133 MHz (0.5 ns)
    product: 16ATF2G64HZ-2G1A1
    vendor: Micron
    physical id: 2
    serial: 16209421
    slot: ChannelB-DIMM0
    size: 16GiB
    width: 64 bits
    clock: 2133MHz (0.5ns)
    *-bank:3
    description: SODIMM DDR4 Synchronous 2133 MHz (0.5 ns)
    product: KHX2133C13S4/8G
    vendor: Kingston
    physical id: 3
    serial: 10542213
    slot: ChannelB-DIMM1
    size: 8GiB
    width: 64 bits
    clock: 2133MHz (0.5ns)
    *-pci
    description: Host bridge
    product: Skylake Host Bridge/DRAM Registers
    vendor: Intel Corporation
    physical id: 100
    bus info: pci@0000:00:00.0
    version: 07
    width: 32 bits
    clock: 33MHz
    configuration: driver=skl_uncore
    resources: irq:0
    *-pci:0
    description: PCI bridge
    product: Skylake PCIe Controller (x16)
    vendor: Intel Corporation
    physical id: 1
    bus info: pci@0000:00:01.0
    version: 07
    width: 32 bits
    clock: 33MHz
    capabilities: pci pm msi pciexpress normal_decode bus_master cap_list
    configuration: driver=pcieport
    resources: irq:16 ioport:e000(size=4096) memory:de000000-df0fffff ioport:c0000000(size=301989888)
    *-display
    description: VGA compatible controller
    product: GM204M [GeForce GTX 970M]
    vendor: NVIDIA Corporation
    physical id: 0
    bus info: pci@0000:01:00.0
    version: a1
    width: 64 bits
    clock: 33MHz
    capabilities: pm msi pciexpress vga_controller bus_master cap_list rom
    configuration: driver=nvidia latency=0
    resources: irq:128 memory:de000000-deffffff memory:c0000000-cfffffff memory:d0000000-d1ffffff ioport:e000(size=128) memory:c0000-dffff
    *-multimedia
    description: Audio device
    product: GM204 High Definition Audio Controller
    vendor: NVIDIA Corporation
    physical id: 0.1
    bus info: pci@0000:01:00.1
    version: a1
    width: 32 bits
    clock: 33MHz
    capabilities: pm msi pciexpress bus_master cap_list
    configuration: driver=snd_hda_intel latency=0
    resources: irq:17 memory:df080000-df083fff
    *-usb
    description: USB controller
    product: Sunrise Point-H USB 3.0 xHCI Controller
    vendor: Intel Corporation
    physical id: 14
    bus info: pci@0000:00:14.0
    version: 31
    width: 64 bits
    clock: 33MHz
    capabilities: pm msi xhci bus_master cap_list
    configuration: driver=xhci_hcd latency=0
    resources: irq:124 memory:df310000-df31ffff
    *-usbhost:0
    product: xHCI Host Controller
    vendor: Linux 4.17.0-3-amd64 xhci-hcd
    physical id: 0
    bus info: usb@1
    logical name: usb1
    version: 4.17
    capabilities: usb-2.00
    configuration: driver=hub slots=16 speed=480Mbit/s
    *-usb:0
    description: Audio device
    product: QU-PAC
    vendor: Allen&Heath Ltd
    physical id: 3
    bus info: usb@1:3
    version: 0.01
    capabilities: usb-2.00 audio-control
    configuration: driver=snd-usb-audio maxpower=100mA speed=480Mbit/s
    *-usb:1
    description: Mouse
    product: G400s Optical Gaming Mouse
    vendor: Logitech
    physical id: 4
    bus info: usb@1:4
    version: 83.00
    capabilities: usb-2.00
    configuration: driver=usbhid maxpower=98mA speed=12Mbit/s
    *-usb:2 UNCLAIMED
    description: Generic USB device
    product: EgisTec_ES603
    vendor: EgisTec
    physical id: 7
    bus info: usb@1:7
    version: 2.00
    capabilities: usb-1.10
    configuration: maxpower=100mA speed=12Mbit/s
    *-usb:3
    description: Bluetooth wireless interface
    vendor: Intel Corp.
    physical id: 8
    bus info: usb@1:8
    version: 0.01
    capabilities: bluetooth usb-2.00
    configuration: driver=btusb maxpower=100mA speed=12Mbit/s
    *-usb:4
    description: Video
    product: BisonCam, NB Pro
    vendor: Generic
    physical id: 9
    bus info: usb@1:9
    version: 6.05
    serial: 200901010001
    capabilities: usb-2.00
    configuration: driver=uvcvideo maxpower=500mA speed=480Mbit/s
    *-usbhost:1
    product: xHCI Host Controller
    vendor: Linux 4.17.0-3-amd64 xhci-hcd
    physical id: 1
    bus info: usb@2
    logical name: usb2
    version: 4.17
    capabilities: usb-3.00
    configuration: driver=hub slots=8 speed=5000Mbit/s
    *-generic
    description: Signal processing controller
    product: Sunrise Point-H Thermal subsystem
    vendor: Intel Corporation
    physical id: 14.2
    bus info: pci@0000:00:14.2
    version: 31
    width: 64 bits
    clock: 33MHz
    capabilities: pm msi bus_master cap_list
    configuration: driver=intel_pch_thermal latency=0
    resources: irq:18 memory:df32e000-df32efff
    *-communication
    description: Communication controller
    product: Sunrise Point-H CSME HECI #1
    vendor: Intel Corporation
    physical id: 16
    bus info: pci@0000:00:16.0
    version: 31
    width: 64 bits
    clock: 33MHz
    capabilities: pm msi bus_master cap_list
    configuration: driver=mei_me latency=0
    resources: irq:125 memory:df32d000-df32dfff
    *-sata
    description: SATA controller
    product: Sunrise Point-H SATA Controller [AHCI mode]
    vendor: Intel Corporation
    physical id: 17
    bus info: pci@0000:00:17.0
    logical name: scsi0
    logical name: scsi2
    version: 31
    width: 32 bits
    clock: 66MHz
    capabilities: sata msi pm ahci_1.0 bus_master cap_list emulated
    configuration: driver=ahci latency=0
    resources: irq:123 memory:df328000-df329fff memory:df32c000-df32c0ff ioport:f050(size=8) ioport:f040(size=4) ioport:f020(size=32) memory:df32b000-df32b7ff
    *-disk:0
    description: ATA Disk
    product: Samsung SSD 850
    physical id: 0
    bus info: scsi@0:0.0.0
    logical name: /dev/sda
    version: 1B6Q
    serial: S24BNXAGA04804Z
    size: 232GiB (250GB)
    capabilities: partitioned partitioned:dos
    configuration: ansiversion=5 logicalsectorsize=512 sectorsize=512 signature=b47fe982
    *-volume:0
    description: Linux filesystem partition
    vendor: Linux
    physical id: 1
    bus info: scsi@0:0.0.0,1
    logical name: /dev/sda1
    logical name: /boot
    version: 1.0
    serial: 006707d2-042a-4161-af39-676e7a1ed722
    size: 243MiB
    capacity: 243MiB
    capabilities: primary bootable extended_attributes large_files ext2 initialized
    configuration: filesystem=ext2 lastmountpoint=/boot modified=2018-08-31 23:16:12 mount.fstype=ext2 mount.options=rw,relatime,block_validity,barrier,user_xattr,acl mounted=2018-08-29 12:33:26 state=mounted
    *-volume:1
    description: Extended partition
    physical id: 2
    bus info: scsi@0:0.0.0,2
    logical name: /dev/sda2
    size: 232GiB
    capacity: 232GiB
    capabilities: primary extended partitioned partitioned:extended
    *-logicalvolume
    description: Linux filesystem partition
    physical id: 5
    logical name: /dev/sda5
    serial: ed739b41-861b-4164-9347-d7fbd3419aba
    size: 232GiB
    capacity: 232GiB
    width: 512 bits
    capabilities: encrypted luks initialized
    configuration: bits=512 cipher=aes filesystem=luks hash=sha256 mode=xts-plain64 version=1
    *-disk:1
    description: ATA Disk
    product: ST1000LM024 HN-M
    physical id: 1
    bus info: scsi@2:0.0.0
    logical name: /dev/sdb
    version: 0001
    serial: S2ZWJ9GG907243
    size: 931GiB (1TB)
    capabilities: partitioned partitioned:dos
    configuration: ansiversion=5 logicalsectorsize=512 sectorsize=4096 signature=94447d30
    *-volume:0
    description: Windows NTFS volume
    physical id: 1
    bus info: scsi@2:0.0.0,1
    logical name: /dev/sdb1
    version: 3.1
    serial: a0de-761c
    size: 98MiB
    capacity: 100MiB
    capabilities: primary bootable ntfs initialized
    configuration: clustersize=4096 created=2016-01-31 04:02:49 filesystem=ntfs label=System Reserved state=clean
    *-volume:1
    description: Windows NTFS volume
    physical id: 2
    bus info: scsi@2:0.0.0,2
    logical name: /dev/sdb2
    version: 3.1
    serial: 066659bb-ff2d-c048-9bfc-caa125a0d717
    size: 195GiB
    capacity: 195GiB
    capabilities: primary ntfs initialized
    configuration: clustersize=4096 created=2016-01-31 04:03:11 filesystem=ntfs state=clean
    *-volume:2
    description: Linux filesystem partition
    physical id: 3
    bus info: scsi@2:0.0.0,3
    logical name: /dev/sdb3
    serial: 9fcfa63a-850a-4788-b2d9-9d5f7a7bf8fe
    size: 736GiB
    capacity: 736GiB
    width: 256 bits
    capabilities: primary encrypted luks initialized
    configuration: bits=256 cipher=aes filesystem=luks hash=sha256 mode=xts-plain64 version=1
    *-pci:1
    description: PCI bridge
    product: Sunrise Point-H PCI Express Root Port #5
    vendor: Intel Corporation
    physical id: 1c
    bus info: pci@0000:00:1c.0
    version: f1
    width: 32 bits
    clock: 33MHz
    capabilities: pci pciexpress msi pm normal_decode bus_master cap_list
    configuration: driver=pcieport
    resources: irq:16 ioport:d000(size=4096) memory:df200000-df2fffff
    *-generic
    description: Unassigned class
    product: RTL8411B PCI Express Card Reader
    vendor: Realtek Semiconductor Co., Ltd.
    physical id: 0
    bus info: pci@0000:02:00.0
    version: 01
    width: 32 bits
    clock: 33MHz
    capabilities: pm msi pciexpress msix vpd bus_master cap_list rom
    configuration: driver=rtsx_pci latency=0
    resources: irq:121 memory:df215000-df215fff memory:df200000-df20ffff
    *-network
    description: Ethernet interface
    product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
    vendor: Realtek Semiconductor Co., Ltd.
    physical id: 0.1
    bus info: pci@0000:02:00.1
    logical name: enp2s0f1
    version: 12
    serial: 80:fa:5b:24:5d:8f
    size: 1Gbit/s
    capacity: 1Gbit/s
    width: 64 bits
    clock: 33MHz
    capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
    configuration: autonegotiation=on broadcast=yes driver=r8168 driverversion=8.046.00-NAPI duplex=full ip=10.3.99.104 latency=0 link=yes multicast=yes port=twisted pair speed=1Gbit/s
    resources: irq:122 ioport:d000(size=256) memory:df214000-df214fff memory:df210000-df213fff
    *-pci:2
    description: PCI bridge
    product: Sunrise Point-H PCI Express Root Port #6
    vendor: Intel Corporation
    physical id: 1c.5
    bus info: pci@0000:00:1c.5
    version: f1
    width: 32 bits
    clock: 33MHz
    capabilities: pci pciexpress msi pm normal_decode bus_master cap_list
    configuration: driver=pcieport
    resources: irq:17 memory:df100000-df1fffff
    *-network DISABLED
    description: Wireless interface
    product: Wireless 3165
    vendor: Intel Corporation
    physical id: 0
    bus info: pci@0000:03:00.0
    logical name: wlp3s0
    version: 81
    serial: e0:94:67:68:db:52
    width: 64 bits
    clock: 33MHz
    capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
    configuration: broadcast=yes driver=iwlwifi driverversion=4.17.0-3-amd64 firmware=29.1044073957.0 latency=0 link=no multicast=yes wireless=IEEE 802.11
    resources: irq:127 memory:df100000-df101fff
    *-isa
    description: ISA bridge
    product: Sunrise Point-H LPC Controller
    vendor: Intel Corporation
    physical id: 1f
    bus info: pci@0000:00:1f.0
    version: 31
    width: 32 bits
    clock: 33MHz
    capabilities: isa bus_master
    configuration: latency=0
    *-memory UNCLAIMED
    description: Memory controller
    product: Sunrise Point-H PMC
    vendor: Intel Corporation
    physical id: 1f.2
    bus info: pci@0000:00:1f.2
    version: 31
    width: 32 bits
    clock: 33MHz (30.3ns)
    capabilities: bus_master
    configuration: latency=0
    resources: memory:df324000-df327fff
    *-multimedia
    description: Audio device
    product: Sunrise Point-H HD Audio
    vendor: Intel Corporation
    physical id: 1f.3
    bus info: pci@0000:00:1f.3
    version: 31
    width: 64 bits
    clock: 33MHz
    capabilities: pm msi bus_master cap_list
    configuration: driver=snd_hda_intel latency=32
    resources: irq:126 memory:df320000-df323fff memory:df300000-df30ffff
    *-serial
    description: SMBus
    product: Sunrise Point-H SMBus
    vendor: Intel Corporation
    physical id: 1f.4
    bus info: pci@0000:00:1f.4
    version: 31
    width: 64 bits
    clock: 33MHz
    configuration: driver=i801_smbus latency=0
    resources: irq:16 memory:df32a000-df32a0ff ioport:f000(size=32)
    *-pnp00:00
    product: PnP device PNP0c02
    physical id: 1
    capabilities: pnp
    configuration: driver=system
    *-pnp00:01
    product: PnP device PNP0c02
    physical id: 2
    capabilities: pnp
    configuration: driver=system
    *-pnp00:02
    product: PnP device PNP0b00
    physical id: 3
    capabilities: pnp
    configuration: driver=rtc_cmos
    *-pnp00:03
    product: PnP device INT3f0d
    physical id: 4
    capabilities: pnp
    configuration: driver=system
    *-pnp00:04
    product: PnP device PNP0303
    physical id: 5
    capabilities: pnp
    configuration: driver=i8042 kbd
    *-pnp00:05
    product: PnP device SYN1219
    physical id: 6
    capabilities: pnp
    configuration: driver=i8042 aux
    *-pnp00:06
    product: PnP device PNP0c02
    physical id: 7
    capabilities: pnp
    configuration: driver=system
    *-pnp00:07
    product: PnP device PNP0c02
    physical id: 8
    capabilities: pnp
    configuration: driver=system
    *-pnp00:08
    product: PnP device PNP0c02
    physical id: 9
    capabilities: pnp
    configuration: driver=system
    *-pnp00:09
    product: PnP device PNP0c02
    physical id: a
    capabilities: pnp
    configuration: driver=system

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    #70777
    Profile photo of Alexander
    Alexander
    Participant

    I have a Sandisk Extreme Go 64GB USB 3.1 and it does not work at all with my QU-PAC, no chance.

    I bought a “SanDisk SDSSDEXT-500G-G25 500GB Extreme 500” (Portable SSD) which works nicely so far.

    #65564
    Profile photo of Alexander
    Alexander
    Participant

    The QU-Pac for me has given me lots of issues.

    That’s interesting, my QU-Pac works fine with a SanDisk Extreme USB 3.0, 64GB.
    In this case I think your’s is somehow defective, if resetting / reinstalling the latest firmware doesn’t help then A&H should repair it.

    #65551
    Profile photo of Alexander
    Alexander
    Participant

    I have a QU-16 and a QU-Pac. The Sandisk work great in the QU-16 with 0 errors. I put the same drive in a QU-Pac and format it there and then get tons of errors and dropouts.

    That means that we need separate spread sheets for different mixers.
    Did you make sure that the firmware is up to date on both devices? Should be 1.90.

    #65003
    Profile photo of Alexander
    Alexander
    Participant

    It’s a tragedy The chance to buy a working disk is zero. There is conflicting information on the list.

    From own experience I would say don’t buy any device for which the information is conflicting and only buy devices “tested by A&H”. Also make sure you buy exactly the model listed, not some successor with similar name.
    I have a SanDisk Extreme USB 3.0 64GB which works fine and a SanDisk Extreme GO USB 3.1 which doesn’t work at all.

    The device just does not read the usb disks (format progres 0% and stand)

    Which device is it exactly?

    #64874
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    Alexander
    Participant

    After the Sandisk fiasko I bought a “Patriot Supersonic Rage 64GB” usb thumb drive. This doesn’t work either:

    After pluggin the drive into the usb port the yellow led turns on for few seconds, then turns off. No further reaction of the mixer to the drive.

    I used my Linux laptop to format the drive exactly like my functioning drive, makes no difference at all.

    This is ridiculous, why is the mixer incompatible to so many drives which are more than capable of writing ~2.6 MB/sec (data rate of multitrack recording)?

    #64825
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    Alexander
    Participant

    I bought a “Sandisk Extreme Go USB 3.1” flash drive (64GB) (USB-ID is 0781:558b) without realizing that it is not the same as a “Sandisk Extreme USB 3.0”. Turns out that if I format it on my linux computer the exact same way as my other thumb drive (which was formatted by the Qu-Pac), I can play all recordings I copy on it but the Qu-Pac cannot write anything on the drive.
    When I try to arm for recording it just says “arming” forever (>2min) and when I try to store a scene it takes longer than usual, then it claims to have written a scene but the name is wrong and it doesn’t appear when I read the drive with my laptop.

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