O console serial mostra a saída embaralhada

Question

Estou tentando conectar a um dispositivo APU1C que possui apenas uma porta serial usando um cabo Usb-para-Serial e o módulo Prolific pl2303. Eu era capaz de me conectar a ele no passado, mas agora estou lutando com um comportamento estranho que nunca vi antes. Eu tentei os parâmetros recomendados (115200,8, n, 1) com minicom, tela e GtkTerm, mas todos dão o mesmo tipo de saída que é:

EuusoumDebianbusterlinux(Linux4.16.0-1-amd64#1SMPDebian4.16.5-1(2018-04-29)x86_64GNU/Linux)comoumclienteetentandoinstalaroPfSenseusandoomemstickinstalador.

ViquealgunsproblemasestavampresentesnosdriversdoWindowsdevidoaumaviolaçãodedireitosautoraiseaconexãofoiimpossívelcomoresultado;poderiaumproblemasimilarafetarosdriversdoLinuxtambém?

Obrigado.

EDITAR:Saídadedmesg|greptty::

[0.000000]console[tty0]enabled[0.649979]serial8250:ttyS0atI/O0x3f8(irq=4,base_baud=115200)isa16550A[9.467550]systemd[1]:Createdslicesystem-getty.slice.[1167.806072]usb1-2:pl2303converternowattachedtottyUSB0[1267.083281]pl2303ttyUSB0:pl2303_get_line_request-failed:-32[1267.083489]pl2303ttyUSB0:pl2303_get_line_request-failed:-32[1277.114942]pl2303ttyUSB0:errorsendingbreak=-32

Saídadetail-f/var/log/syslogaoconectarocabo:

Jun1216:48:25unobtainiumkernel:[3678.727502]usb1-2:newfull-speedUSBdevicenumber11usingxhci_hcdJun1216:48:26unobtainiumkernel:[3678.876263]usb1-2:NewUSBdevicefound,idVendor=067b,idProduct=2303Jun1216:48:26unobtainiumkernel:[3678.876268]usb1-2:NewUSBdevicestrings:Mfr=1,Product=2,SerialNumber=0Jun1216:48:26unobtainiumkernel:[3678.876272]usb1-2:Product:USB2.0ToCOMDeviceJun1216:48:26unobtainiumkernel:[3678.876276]usb1-2:Manufacturer:ProlificTechnologyInc.Jun1216:48:26unobtainiumkernel:[3678.876935]pl23031-2:1.0:pl2303converterdetectedJun1216:48:26unobtainiumkernel:[3678.877651]usb1-2:pl2303converternowattachedtottyUSB0Jun1216:48:26unobtainiummtp-probe:checkingbus1,device11:"/sys/devices/pci0000:00/0000:00:14.0/usb1/1-2"
Jun 12 16:48:26 unobtainium mtp-probe: bus: 1, device: 11 was not an MTP device
Jun 12 16:48:26 unobtainium upowerd[1960]: unhandled action 'bind' on /sys/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2:1.0
Jun 12 16:48:26 unobtainium upowerd[1960]: unhandled action 'bind' on /sys/devices/pci0000:00/0000:00:14.0/usb1/1-2
Jun 12 16:48:28 unobtainium ModemManager[726]: <info>  Couldn't check support for device '/sys/devices/pci0000:00/0000:00:14.0/usb1/1-2': not supported by any plugin

    

Answer 1

Eu encontrei a causa raiz: um cabo extinto e possivelmente um chip Prolific falsificado (pl2303). O uso de outro cabo resolveu tudo, incluindo a impossibilidade de usar o cabo anterior em uma caixa do Windows 10 com os drivers mais recentes.