Good point. I've had problems with modemmanager doing this.
*sudo apt purge modemmanager* On Fri, Nov 27, 2020 at 5:57 AM Cameron D <cgoo...@davidsoncj.id.au> wrote: > Have you checked that there is not any form of getty running on the port - > they wait for logins and will steal some of the input characters. > > That's rather old school - I don't know how systemd does it. > > > On Friday, 27 November 2020 at 11:00:27 pm UTC+10 tke...@gmail.com wrote: > >> I think we can say with some confidence that there is something wrong >> with the UART chip on your new computer. Can you take it back? >> >> Alternatively, as Vince says, a serial-to-usb converter. They seem to be >> more reliable these days. >> >> -tk >> >> On Thu, Nov 26, 2020 at 8:47 PM kiwigander <amp...@gmail.com> wrote: >> >>> Ta. The prevalent RS232<=>USB chipset around these parts seems to be an >>> FTDI. I'll look around. >>> >>> On Friday, November 27, 2020 at 4:19:32 PM UTC+13 vince wrote: >>> >>>> I was hoping to avoid USB<=>RS232 converters, as I understood they were >>>>> problematic (in the past) and would add another thing-to-go-wrong. I have >>>>> one other old device to monitor and it too has only an RS232 interface. >>>>> Thought I'd be clever and get a low power box with two RS232 ports. >>>>> >>>> >>>> FWIW, i've been running a VP2 with serial datalogger and a serial2usb >>>> dongle for something like 10 years now. I started with a Shuttle mini-pc >>>> that had serial ports and switched to a little arm box that just has USB. >>>> Never had an issue with the serial2usb from day one. Works great. >>>> >>>> You basically just want to make sure you get the right chipset in the >>>> adaptor. Anything with the PL2303 definitely works. Both mine have that >>>> chipset, and they were picked up years apart from different suppliers, so >>>> they used to be pretty much what you always got. I haven't looked in years >>>> to know if that's still the case. >>>> >>>> I'm running on a Seagate Dockstar (a 128MB RAM version of the original >>>> PogoPlug) with a Seagate laptop drive plugged in, and you can see the >>>> serial adaptor available in the lsusb output below. >>>> >>>> root@debian:~# lsusb >>>> Bus 001 Device 002: ID 05e3:0608 Genesys Logic, Inc. USB-2.0 4-Port HUB >>>> Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub >>>> Bus 001 Device 003: ID 0bc2:2120 Seagate RSS LLC >>>> Bus 001 Device 004: ID 067b:2303 Prolific Technology, Inc. PL2303 >>>> Serial Port >>>> >>>> >>> -- >>> >> You received this message because you are subscribed to the Google Groups >>> "weewx-user" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to weewx-user+...@googlegroups.com. >>> >> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/weewx-user/d7e49691-043f-4f6c-a998-dd91c3eaa34an%40googlegroups.com >>> <https://groups.google.com/d/msgid/weewx-user/d7e49691-043f-4f6c-a998-dd91c3eaa34an%40googlegroups.com?utm_medium=email&utm_source=footer> >>> . >>> >> -- > You received this message because you are subscribed to the Google Groups > "weewx-user" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to weewx-user+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/weewx-user/95f8e263-0d64-46de-bf3e-e6089756f45an%40googlegroups.com > <https://groups.google.com/d/msgid/weewx-user/95f8e263-0d64-46de-bf3e-e6089756f45an%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "weewx-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to weewx-user+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/weewx-user/CAPq0zEA5zJ6CqEhNT%2BDjP8S8h2xBGr-o2P9CvSrJycqaQzFRNg%40mail.gmail.com.
