No USB connection to Ender6

I connected my Ender6 to the Raspberry Pi4 via USB. But I can't connect to the printer in OctoPrint. A camera is also connected to the Raspi. This works in Octoprint. I've tested at least 10 different USB cables, but none make a difference. What am I doing wrong?

Hi :slight_smile:

Did you connect it to the correct USB port?
You have to remove the bottom plate and need to connect it directly to the main board.

I know that. There is no other USB port on the Ender6.

Können wir auch auf deutsch schreiben, dann tue ich mich wesentlich leiochter. Ich muss sonst immer einen Übersetzer verwenden. :wink:

But English more useful for the community.

Let's check if the printer is detected at all :slight_smile:

Log into your pi via ssh then disconnect your printer, connect it again, enter dmesg | tail -n 20 and post the output here.

If you need help with ssh connection, follow this guide

username: pi
password: raspberry

Hi,
ido it and this was the output:

pi@OctoPi:~ $ dmesg
[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Linux version 5.10.103-v7l+ (dom@buildbot) (arm-linux-gnueabihf-gcc-8 (Ubuntu/Linaro 8.4.0-3ubuntu1) 8.4.0, GNU ld (GNU Binutils for Ubuntu) 2.34) #1529 SMP Tue Mar 8 12:24:00 GMT 2022
[    0.000000] CPU: ARMv7 Processor [410fd083] revision 3 (ARMv7), cr=30c5383d
[    0.000000] CPU: div instructions available: patching division code
[    0.000000] CPU: PIPT / VIPT nonaliasing data cache, PIPT instruction cache
[    0.000000] OF: fdt: Machine model: Raspberry Pi 4 Model B Rev 1.4
[    0.000000] random: fast init done
[    0.000000] Memory policy: Data cache writealloc
[    0.000000] Reserved memory: created CMA memory pool at 0x000000001ac00000, size 320 MiB
[    0.000000] OF: reserved mem: initialized node linux,cma, compatible id shared-dma-pool
[    0.000000] Zone ranges:
[    0.000000]   DMA      [mem 0x0000000000000000-0x000000002fffffff]
[    0.000000]   Normal   empty
[    0.000000]   HighMem  [mem 0x0000000030000000-0x00000000fbffffff]
[    0.000000] Movable zone start for each node
[    0.000000] Early memory node ranges
[    0.000000]   node   0: [mem 0x0000000000000000-0x0000000037ffffff]
[    0.000000]   node   0: [mem 0x0000000040000000-0x00000000fbffffff]
[    0.000000] Initmem setup node 0 [mem 0x0000000000000000-0x00000000fbffffff]
[    0.000000] On node 0 totalpages: 999424
[    0.000000]   DMA zone: 1728 pages used for memmap
[    0.000000]   DMA zone: 0 pages reserved
[    0.000000]   DMA zone: 196608 pages, LIFO batch:63
[    0.000000]   HighMem zone: 802816 pages, LIFO batch:63
[    0.000000] percpu: Embedded 20 pages/cpu s50828 r8192 d22900 u81920
[    0.000000] pcpu-alloc: s50828 r8192 d22900 u81920 alloc=20*4096
[    0.000000] pcpu-alloc: [0] 0 [0] 1 [0] 2 [0] 3
[    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 997696
[    0.000000] Kernel command line: coherent_pool=1M 8250.nr_uarts=0 snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1  smsc95xx.macaddr=E4:5F:01:26:B2:D2 vc_mem.mem_base=0x3ec00000 vc_mem.mem_size=0x40000000  console=ttyS0,115200 console=tty1 root=PARTUUID=febe56d7-02 rootfstype=ext4 elevator=deadline fsck.repair=yes rootwait
[    0.000000] Kernel parameter elevator= does not have any effect anymore.
               Please use sysfs to set IO scheduler for individual devices.
[    0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes, linear)
[    0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes, linear)
[    0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
[    0.000000] software IO TLB: mapped [mem 0x0000000014890000-0x0000000018890000] (64MB)
[    0.000000] Memory: 3548360K/3997696K available (10240K kernel code, 1366K rwdata, 3196K rodata, 2048K init, 882K bss, 121656K reserved, 327680K cma-reserved, 3211264K highmem)
[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
[    0.000000] ftrace: allocating 34355 entries in 101 pages
[    0.000000] ftrace: allocated 101 pages with 4 groups
[    0.000000] rcu: Hierarchical RCU implementation.
[    0.000000]  Rude variant of Tasks RCU enabled.
[    0.000000]  Tracing variant of Tasks RCU enabled.
[    0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies.
[    0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
[    0.000000] GIC: Using split EOI/Deactivate mode
[    0.000000] random: get_random_bytes called from start_kernel+0x3c8/0x59c with crng_init=1
[    0.000007] sched_clock: 32 bits at 1000kHz, resolution 1000ns, wraps every 2147483647500ns
[    0.000034] clocksource: timer: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 1911260446275 ns
[    0.000098] bcm2835: system timer (irq = 25)
[    0.000748] arch_timer: cp15 timer(s) running at 54.00MHz (phys).
[    0.000770] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0xc743ce346, max_idle_ns: 440795203123 ns
[    0.000792] sched_clock: 56 bits at 54MHz, resolution 18ns, wraps every 4398046511102ns
[    0.000810] Switching to timer-based delay loop, resolution 18ns
[    0.001071] Console: colour dummy device 80x30
[    0.001827] printk: console [tty1] enabled
[    0.001892] Calibrating delay loop (skipped), value calculated using timer frequency.. 108.00 BogoMIPS (lpj=540000)
[    0.001948] pid_max: default: 32768 minimum: 301
[    0.002126] LSM: Security Framework initializing
[    0.002325] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes, linear)
[    0.002370] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes, linear)
[    0.003846] cgroup: Disabling memory control group subsystem
[    0.004094] CPU: Testing write buffer coherency: ok
[    0.004570] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
[    0.005797] Setting up static identity map for 0x200000 - 0x20003c
[    0.006012] rcu: Hierarchical SRCU implementation.
[    0.006949] smp: Bringing up secondary CPUs ...
[    0.008182] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
[    0.009546] CPU2: thread -1, cpu 2, socket 0, mpidr 80000002
[    0.010855] CPU3: thread -1, cpu 3, socket 0, mpidr 80000003
[    0.011013] smp: Brought up 1 node, 4 CPUs
[    0.011060] SMP: Total of 4 processors activated (432.00 BogoMIPS).
[    0.011090] CPU: All CPU(s) started in HYP mode.
[    0.011117] CPU: Virtualization extensions available.
[    0.011982] devtmpfs: initialized
[    0.026004] VFP support v0.3: implementor 41 architecture 3 part 40 variant 8 rev 0
[    0.026269] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[    0.026322] futex hash table entries: 1024 (order: 4, 65536 bytes, linear)
[    0.034516] pinctrl core: initialized pinctrl subsystem
[    0.035624] NET: Registered protocol family 16
[    0.039688] DMA: preallocated 1024 KiB pool for atomic coherent allocations
[    0.040483] audit: initializing netlink subsys (disabled)
[    0.040764] audit: type=2000 audit(0.030:1): state=initialized audit_enabled=0 res=1
[    0.041397] thermal_sys: Registered thermal governor 'step_wise'
[    0.042107] hw-breakpoint: found 5 (+1 reserved) breakpoint and 4 watchpoint registers.
[    0.042162] hw-breakpoint: maximum watchpoint size is 8 bytes.
[    0.042579] Serial: AMBA PL011 UART driver
[    0.074706] bcm2835-mbox fe00b880.mailbox: mailbox enabled
[    0.090894] raspberrypi-firmware soc:firmware: Attached to firmware from 2021-12-01T15:02:46, variant start_x
[    0.100909] raspberrypi-firmware soc:firmware: Firmware hash is 71bd3109023a0c8575585ba87cbb374d2eeb038f
[    0.141755] Kprobes globally optimized
[    0.147214] bcm2835-dma fe007000.dma: DMA legacy API manager, dmachans=0x1
[    0.151514] vgaarb: loaded
[    0.151978] SCSI subsystem initialized
[    0.152221] usbcore: registered new interface driver usbfs
[    0.152298] usbcore: registered new interface driver hub
[    0.152387] usbcore: registered new device driver usb
[    0.152738] usb_phy_generic phy: supply vcc not found, using dummy regulator
[    0.154696] clocksource: Switched to clocksource arch_sys_counter
[    1.101079] VFS: Disk quotas dquot_6.6.0
[    1.101196] VFS: Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
[    1.101377] FS-Cache: Loaded
[    1.101619] CacheFiles: Loaded
[    1.112603] NET: Registered protocol family 2
[    1.112875] IP idents hash table entries: 16384 (order: 5, 131072 bytes, linear)
[    1.114414] tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 6144 bytes, linear)
[    1.114481] TCP established hash table entries: 8192 (order: 3, 32768 bytes, linear)
[    1.114566] TCP bind hash table entries: 8192 (order: 4, 65536 bytes, linear)
[    1.114653] TCP: Hash tables configured (established 8192 bind 8192)
[    1.114953] UDP hash table entries: 512 (order: 2, 16384 bytes, linear)
[    1.115017] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes, linear)
[    1.115288] NET: Registered protocol family 1
[    1.116038] RPC: Registered named UNIX socket transport module.
[    1.116071] RPC: Registered udp transport module.
[    1.116099] RPC: Registered tcp transport module.
[    1.116127] RPC: Registered tcp NFSv4.1 backchannel transport module.
[    1.116165] PCI: CLS 0 bytes, default 64
[    1.119543] Initialise system trusted keyrings
[    1.119805] workingset: timestamp_bits=14 max_order=20 bucket_order=6
[    1.128195] zbud: loaded
[    1.129948] FS-Cache: Netfs 'nfs' registered for caching
[    1.130737] NFS: Registering the id_resolver key type
[    1.130814] Key type id_resolver registered
[    1.130843] Key type id_legacy registered
[    1.130999] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
[    1.131031] nfs4flexfilelayout_init: NFSv4 Flexfile Layout Driver Registering...
[    1.132101] Key type asymmetric registered
[    1.132134] Asymmetric key parser 'x509' registered
[    1.132339] bounce: pool size: 64 pages
[    1.132396] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 249)
[    1.132630] io scheduler mq-deadline registered
[    1.132662] io scheduler kyber registered
[    1.137206] brcm-pcie fd500000.pcie: host bridge /scb/pcie@7d500000 ranges:
[    1.137260] brcm-pcie fd500000.pcie:   No bus range found for /scb/pcie@7d500000, using [bus 00-ff]
[    1.137362] brcm-pcie fd500000.pcie:      MEM 0x0600000000..0x063fffffff -> 0x00c0000000
[    1.137472] brcm-pcie fd500000.pcie:   IB MEM 0x0000000000..0x00ffffffff -> 0x0400000000
[    1.196837] brcm-pcie fd500000.pcie: link up, 5.0 GT/s PCIe x1 (SSC)
[    1.197242] brcm-pcie fd500000.pcie: PCI host bridge to bus 0000:00
[    1.197280] pci_bus 0000:00: root bus resource [bus 00-ff]
[    1.197316] pci_bus 0000:00: root bus resource [mem 0x600000000-0x63fffffff] (bus address [0xc0000000-0xffffffff])
[    1.197429] pci 0000:00:00.0: [14e4:2711] type 01 class 0x060400
[    1.197690] pci 0000:00:00.0: PME# supported from D0 D3hot
[    1.201175] PCI: bus0: Fast back to back transfers disabled
[    1.201588] pci 0000:01:00.0: [1106:3483] type 00 class 0x0c0330
[    1.201733] pci 0000:01:00.0: reg 0x10: [mem 0x00000000-0x00000fff 64bit]
[    1.202187] pci 0000:01:00.0: PME# supported from D0 D3hot
[    1.205670] PCI: bus1: Fast back to back transfers disabled
[    1.205785] pci 0000:00:00.0: BAR 8: assigned [mem 0x600000000-0x6000fffff]
[    1.205827] pci 0000:01:00.0: BAR 0: assigned [mem 0x600000000-0x600000fff 64bit]
[    1.205929] pci 0000:00:00.0: PCI bridge to [bus 01]
[    1.205968] pci 0000:00:00.0:   bridge window [mem 0x600000000-0x6000fffff]
[    1.206411] pcieport 0000:00:00.0: enabling device (0140 -> 0142)
[    1.206648] pcieport 0000:00:00.0: PME: Signaling with IRQ 63
[    1.215379] iproc-rng200 fe104000.rng: hwrng registered
[    1.215709] vc-mem: phys_addr:0x00000000 mem_base=0x3ec00000 mem_size:0x40000000(1024 MiB)
[    1.216595] gpiomem-bcm2835 fe200000.gpiomem: Initialised: Registers at 0xfe200000
[    1.229048] brd: module loaded
[    1.241491] loop: module loaded
[    1.243271] Loading iSCSI transport class v2.0-870.
[    1.248283] bcmgenet fd580000.ethernet: GENET 5.0 EPHY: 0x0000
[    1.344884] unimac-mdio unimac-mdio.-19: Broadcom UniMAC MDIO bus
[    1.346088] usbcore: registered new interface driver r8152
[    1.346193] usbcore: registered new interface driver lan78xx
[    1.346273] usbcore: registered new interface driver smsc95xx
[    1.394271] xhci_hcd 0000:01:00.0: xHCI Host Controller
[    1.394324] xhci_hcd 0000:01:00.0: new USB bus registered, assigned bus number 1
[    1.397684] xhci_hcd 0000:01:00.0: hcc params 0x002841eb hci version 0x100 quirks 0x0000060000000890
[    1.399048] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.10
[    1.399090] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    1.399127] usb usb1: Product: xHCI Host Controller
[    1.399158] usb usb1: Manufacturer: Linux 5.10.103-v7l+ xhci-hcd
[    1.399189] usb usb1: SerialNumber: 0000:01:00.0
[    1.399946] hub 1-0:1.0: USB hub found
[    1.400062] hub 1-0:1.0: 1 port detected
[    1.400748] xhci_hcd 0000:01:00.0: xHCI Host Controller
[    1.400793] xhci_hcd 0000:01:00.0: new USB bus registered, assigned bus number 2
[    1.400839] xhci_hcd 0000:01:00.0: Host supports USB 3.0 SuperSpeed
[    1.401354] usb usb2: New USB device found, idVendor=1d6b, idProduct=0003, bcdDevice= 5.10
[    1.401394] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    1.401429] usb usb2: Product: xHCI Host Controller
[    1.401459] usb usb2: Manufacturer: Linux 5.10.103-v7l+ xhci-hcd
[    1.401490] usb usb2: SerialNumber: 0000:01:00.0
[    1.402221] hub 2-0:1.0: USB hub found
[    1.402309] hub 2-0:1.0: 4 ports detected
[    1.403990] dwc_otg: version 3.00a 10-AUG-2012 (platform bus)
[    1.404311] dwc_otg: FIQ enabled
[    1.404326] dwc_otg: NAK holdoff enabled
[    1.404340] dwc_otg: FIQ split-transaction FSM enabled
[    1.404358] Module dwc_common_port init
[    1.404880] usbcore: registered new interface driver uas
[    1.405004] usbcore: registered new interface driver usb-storage
[    1.405221] mousedev: PS/2 mouse device common for all mice
[    1.406885] bcm2835-wdt bcm2835-wdt: Broadcom BCM2835 watchdog timer
[    1.412040] sdhci: Secure Digital Host Controller Interface driver
[    1.412073] sdhci: Copyright(c) Pierre Ossman
[    1.412784] mmc-bcm2835 fe300000.mmcnr: could not get clk, deferring probe
[    1.413379] sdhci-pltfm: SDHCI platform and OF driver helper
[    1.417568] ledtrig-cpu: registered to indicate activity on CPUs
[    1.417924] hid: raw HID events driver (C) Jiri Kosina
[    1.418147] usbcore: registered new interface driver usbhid
[    1.418177] usbhid: USB HID core driver
[    1.424043] Initializing XFRM netlink socket
[    1.424106] NET: Registered protocol family 17
[    1.424245] Key type dns_resolver registered
[    1.424626] Registering SWP/SWPB emulation handler
[    1.425070] registered taskstats version 1
[    1.425114] Loading compiled-in X.509 certificates
[    1.426006] Key type ._fscrypt registered
[    1.426037] Key type .fscrypt registered
[    1.426065] Key type fscrypt-provisioning registered
[    1.437545] uart-pl011 fe201000.serial: there is not valid maps for state default
[    1.437881] uart-pl011 fe201000.serial: cts_event_workaround enabled
[    1.437972] fe201000.serial: ttyAMA0 at MMIO 0xfe201000 (irq = 36, base_baud = 0) is a PL011 rev2
[    1.444639] bcm2835-power bcm2835-power: Broadcom BCM2835 power domains driver
[    1.445784] mmc-bcm2835 fe300000.mmcnr: mmc_debug:0 mmc_debug2:0
[    1.445818] mmc-bcm2835 fe300000.mmcnr: DMA channel allocated
[    1.476113] of_cfs_init
[    1.476400] of_cfs_init: OK
[    1.496768] mmc1: queuing unknown CIS tuple 0x80 (2 bytes)
[    1.498477] mmc1: queuing unknown CIS tuple 0x80 (3 bytes)
[    1.500179] mmc1: queuing unknown CIS tuple 0x80 (3 bytes)
[    1.503214] mmc1: queuing unknown CIS tuple 0x80 (7 bytes)
[    1.505522] mmc1: queuing unknown CIS tuple 0x80 (3 bytes)
[    1.512949] mmc0: SDHCI controller on fe340000.mmc [fe340000.mmc] using ADMA
[    1.513641] Waiting for root device PARTUUID=febe56d7-02...
[    1.587181] mmc1: new high speed SDIO card at address 0001
[    1.620788] mmc0: new ultra high speed DDR50 SDHC card at address 1234
[    1.621698] mmcblk0: mmc0:1234 SA32G 28.9 GiB
[    1.623397]  mmcblk0: p1 p2
[    1.662866] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null)
[    1.662960] VFS: Mounted root (ext4 filesystem) readonly on device 179:2.
[    1.667932] devtmpfs: mounted
[    1.678191] Freeing unused kernel memory: 2048K
[    1.684742] usb 1-1: new high-speed USB device number 2 using xhci_hcd
[    1.725020] Run /sbin/init as init process
[    1.725050]   with arguments:
[    1.725065]     /sbin/init
[    1.725079]   with environment:
[    1.725093]     HOME=/
[    1.725107]     TERM=linux
[    1.867413] usb 1-1: New USB device found, idVendor=2109, idProduct=3431, bcdDevice= 4.21
[    1.867462] usb 1-1: New USB device strings: Mfr=0, Product=1, SerialNumber=0
[    1.867496] usb 1-1: Product: USB2.0 Hub
[    1.869561] hub 1-1:1.0: USB hub found
[    1.869870] hub 1-1:1.0: 4 ports detected
[    2.125251] systemd[1]: System time before build time, advancing clock.
[    2.224933] NET: Registered protocol family 10
[    2.226405] Segment Routing with IPv6
[    2.283889] systemd[1]: systemd 241 running in system mode. (+PAM +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ +LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD -IDN2 +IDN -PCRE2 default-hierarchy=hybrid)
[    2.284836] systemd[1]: Detected architecture arm.
[    2.359722] systemd[1]: Set hostname to <OctoPi>.
[    3.024215] random: systemd: uninitialized urandom read (16 bytes read)
[    3.035261] random: systemd: uninitialized urandom read (16 bytes read)
[    3.038684] systemd[1]: Created slice system-getty.slice.
[    3.039715] random: systemd: uninitialized urandom read (16 bytes read)
[    3.040357] systemd[1]: Set up automount Arbitrary Executable File Formats File System Automount Point.
[    3.041187] systemd[1]: Started Dispatch Password Requests to Console Directory Watch.
[    3.042269] systemd[1]: Listening on Syslog Socket.
[    3.042712] systemd[1]: Reached target Swap.
[    3.043787] systemd[1]: Listening on udev Control Socket.
[    3.044736] systemd[1]: Listening on udev Kernel Socket.
[    3.712139] EXT4-fs (mmcblk0p2): re-mounted. Opts: (null)
[    3.804847] systemd-journald[120]: Received request to flush runtime journal from PID 1
[    4.357414] rpivid-mem feb00000.hevc-decoder: rpivid-hevcmem initialised: Registers at 0xfeb00000 length 0x00010000
[    4.384886] rpivid-mem feb10000.rpivid-local-intc: rpivid-intcmem initialised: Registers at 0xfeb10000 length 0x00001000
[    4.388735] rpivid-mem feb20000.h264-decoder: rpivid-h264mem initialised: Registers at 0xfeb20000 length 0x00010000
[    4.391432] vc_sm_cma: module is from the staging directory, the quality is unknown, you have been warned.
[    4.398055] mc: Linux media interface: v0.10
[    4.399804] bcm2835_vc_sm_cma_probe: Videocore shared memory driver
[    4.399831] [vc_sm_connected_init]: start
[    4.404852] rpivid-mem feb30000.vp9-decoder: rpivid-vp9mem initialised: Registers at 0xfeb30000 length 0x00010000
[    4.425907] [vc_sm_connected_init]: installed successfully
[    4.456515] videodev: Linux video capture interface: v2.00
[    4.488388] bcm2835_mmal_vchiq: module is from the staging directory, the quality is unknown, you have been warned.
[    4.504491] bcm2835_v4l2: module is from the staging directory, the quality is unknown, you have been warned.
[    4.530752] bcm2835_isp: module is from the staging directory, the quality is unknown, you have been warned.
[    4.532503] bcm2835_codec: module is from the staging directory, the quality is unknown, you have been warned.
[    4.622859] snd_bcm2835: module is from the staging directory, the quality is unknown, you have been warned.
[    4.646312] [drm] Initialized v3d 1.0.0 20180419 for fec00000.v3d on minor 0
[    4.750246] cfg80211: Loading compiled-in X.509 certificates for regulatory database
[    4.789662] [drm] No displays found. Consider forcing hotplug if HDMI is attached
[    4.789804] vc4-drm gpu: bound fe600000.firmwarekms (ops vc4_fkms_ops [vc4])
[    4.790382] [drm] Initialized vc4 0.0.0 20140616 for gpu on minor 1
[    4.793931] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
[    4.885013] brcmfmac: F1 signature read @0x18000000=0x15264345
[    4.929089] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43455-sdio for chip BCM4345/6
[    4.930859] usbcore: registered new interface driver brcmfmac
[    4.937931] bcm2835_audio bcm2835_audio: card created with 8 channels
[    5.145037] bcm2835-codec bcm2835-codec: Device registered as /dev/video10
[    5.145239] bcm2835-codec bcm2835-codec: Loaded V4L2 decode
[    5.158433] bcm2835-codec bcm2835-codec: Device registered as /dev/video11
[    5.158592] bcm2835-codec bcm2835-codec: Loaded V4L2 encode
[    5.161957] bcm2835-v4l2-0: scene mode selected 0, was 0
[    5.162382] bcm2835-v4l2-0: V4L2 device registered as video0 - stills mode > 1280x720
[    5.168804] bcm2835-codec bcm2835-codec: Device registered as /dev/video12
[    5.168962] bcm2835-codec bcm2835-codec: Loaded V4L2 isp
[    5.169532] bcm2835-v4l2-0: Broadcom 2835 MMAL video capture ver 0.0.2 loaded.
[    5.179761] bcm2835-isp bcm2835-isp: Device node output[0] registered as /dev/video13
[    5.184809] bcm2835-codec bcm2835-codec: Device registered as /dev/video18
[    5.184863] bcm2835-codec bcm2835-codec: Loaded V4L2 image_fx
[    5.192297] bcm2835-isp bcm2835-isp: Device node capture[0] registered as /dev/video14
[    5.193203] bcm2835-isp bcm2835-isp: Device node capture[1] registered as /dev/video15
[    5.194179] bcm2835-isp bcm2835-isp: Device node stats[2] registered as /dev/video16
[    5.194211] bcm2835-isp bcm2835-isp: Register output node 0 with media controller
[    5.194239] bcm2835-isp bcm2835-isp: Register capture node 1 with media controller
[    5.194273] bcm2835-isp bcm2835-isp: Register capture node 2 with media controller
[    5.194296] bcm2835-isp bcm2835-isp: Register capture node 3 with media controller
[    5.194879] bcm2835-isp bcm2835-isp: Loaded V4L2 bcm2835-isp
[    5.198452] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43455-sdio for chip BCM4345/6
[    5.198576] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43455-sdio for chip BCM4345/6
[    5.209726] brcmfmac: brcmf_c_preinit_dcmds: Firmware: BCM4345/6 wl0: Mar 23 2020 02:19:54 version 7.45.206 (r725000 CY) FWID 01-88ee44ea
[    7.093423] uart-pl011 fe201000.serial: no DMA platform data
[    7.232125] random: crng init done
[    7.232147] random: 7 urandom warning(s) missed due to ratelimiting
[    7.324569] 8021q: 802.1Q VLAN Support v1.8
[    7.886519] brcmfmac: brcmf_cfg80211_set_power_mgmt: power save enabled
[    7.941968] EXT4-fs (mmcblk0p2): resizing filesystem from 541184 to 7496704 blocks
[    7.964817] Adding 102396k swap on /var/swap.  Priority:-2 extents:22 across:149172k SSFS
[    8.281570] bcmgenet fd580000.ethernet: configuring instance for external RGMII (RX delay)
[    8.282184] bcmgenet fd580000.ethernet eth0: Link is Down
[   12.474954] bcmgenet fd580000.ethernet eth0: Link is Up - 1Gbps/Full - flow control rx/tx
[   12.475003] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[   14.514823] Bluetooth: Core ver 2.22
[   14.514887] NET: Registered protocol family 31
[   14.514894] Bluetooth: HCI device and connection manager initialized
[   14.514910] Bluetooth: HCI socket layer initialized
[   14.514919] Bluetooth: L2CAP socket layer initialized
[   14.514935] Bluetooth: SCO socket layer initialized
[   14.753759] Bluetooth: HCI UART driver ver 2.3
[   14.753780] Bluetooth: HCI UART protocol H4 registered
[   14.753884] Bluetooth: HCI UART protocol Three-wire (H5) registered
[   14.754159] Bluetooth: HCI UART protocol Broadcom registered
[   19.350163] EXT4-fs (mmcblk0p2): resized to 3670016 blocks
[   20.761333] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[   20.761352] Bluetooth: BNEP filters: protocol multicast
[   20.761380] Bluetooth: BNEP socket layer initialized
[   25.124751] Bluetooth: hci0: command 0x1003 tx timeout
[   27.194757] Bluetooth: hci0: command 0x1001 tx timeout
[   29.274738] Bluetooth: hci0: command 0x1009 tx timeout
[   31.288016] EXT4-fs (mmcblk0p2): resized to 6815744 blocks
[   33.623012] EXT4-fs (mmcblk0p2): resized filesystem to 7496704
[  321.538480] usb 1-1.1: new full-speed USB device number 3 using xhci_hcd
[  321.674683] usb 1-1.1: New USB device found, idVendor=1a86, idProduct=7523, bcdDevice= 2.64
[  321.674706] usb 1-1.1: New USB device strings: Mfr=0, Product=2, SerialNumber=0
[  321.674725] usb 1-1.1: Product: USB Serial
[  321.772096] usbcore: registered new interface driver usbserial_generic
[  321.772183] usbserial: USB Serial support registered for generic
[  321.774618] usbcore: registered new interface driver ch341
[  321.774729] usbserial: USB Serial support registered for ch341-uart
[  321.774857] ch341 1-1.1:1.0: ch341-uart converter detected
[  321.778760] usb 1-1.1: ch341-uart converter now attached to ttyUSB0
[  852.717370] usb 1-1.1: USB disconnect, device number 3
[  852.718334] ch341-uart ttyUSB0: ch341-uart converter now disconnected from ttyUSB0
[  852.718476] ch341 1-1.1:1.0: device disconnected
[315364.159813] usb 1-1.1: new full-speed USB device number 4 using xhci_hcd
[315364.295961] usb 1-1.1: New USB device found, idVendor=1a86, idProduct=7523, bcdDevice= 2.64
[315364.295983] usb 1-1.1: New USB device strings: Mfr=0, Product=2, SerialNumber=0
[315364.296000] usb 1-1.1: Product: USB Serial
[315364.308735] ch341 1-1.1:1.0: ch341-uart converter detected
[315364.314192] usb 1-1.1: ch341-uart converter now attached to ttyUSB0
pi@OctoPi:~ $ tail -n 20

Alrighty.

Just for your information: dmesg | tail -n 20 is a single command - not two different commands sepperated by | :wink:
It just reduces the long output to the last 20 lines. But your output is fine.

The printer should be available at ttyUSB0

If it's still not listed try to click on the refresh button (the two arrows in a circle at the top right of the image)

Hi,
sorry for answering so late. That is the problem that no one understands. It indicates that it finds the port, but Octoprint still does not connect to the printer. I don't know where the fault lies. I even got a new motherboard for the printer, but nothing changes. There must be a wrong attitude somewhere, but I don't know where.

Can you properly connect to the Ender 6 from the PC via pronterface?

No, I can't connect to Pronterface either. I've already tried it with Creality Slicer.

To add: I connected the printer once via the Raspi and also directly via USB to the PC. Since Windows also recognizes the printer but still I can connect it neither with connection to the Raspi nor with direct connection to the PC.

So something seems to be broken with the printer's firmware or maybe hardware

You may try to reinstall the firmware first.

[quote="Ewald_Ikemann, post:13, topic:49698, full:true"]
So something seems to be broken with the printer's firmware or maybe hardware
I wrote, I already have a new motherboard in the printer and of course the firmware reinstalled. But it hasn't changed anything. I already got the tip to install another firmware. But I don't know anything about that.

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