From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dave Land Subject: Re: [C8000] serial console drops input Date: Sun, 26 Jan 2014 13:35:46 -0700 Message-ID: <52E571A2.8060600@landcomp.net> References: <20140125054144.4ccfde5e@marga.jer-c2.orkz.net> <1417398.fmUESL4Ngr@eto> <7905648.nun1s37FKj@eto> <20140125181348.67a2bf8f@marga.jer-c2.orkz.net> <20140126010218.33334dbd@marga.jer-c2.orkz.net> <52E524A6.2060703@gmx.de> <20140126212225.0c6e88f9@marga.jer-c2.orkz.net> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Cc: Helge Deller , John David Anglin , Rolf Eike Beer To: Jeroen Roovers , linux-parisc@vger.kernel.org Return-path: In-Reply-To: <20140126212225.0c6e88f9@marga.jer-c2.orkz.net> List-ID: List-Id: linux-parisc.vger.kernel.org On 1/26/14 1:22 PM, Jeroen Roovers wrote: > On Sun, 26 Jan 2014 16:07:18 +0100 > Helge Deller wrote: > >> I'm pretty sure that I didn't changed anything in palo which is >> PDC-console related and which would explain why you have such >> problems. If there is a problem, then it might be because of kernel >> and/or cable. > > Yes, that seems to be the case. I initially assumed something might > actually reconfigure the serial port in the IPL, but I can't find any > evidence in support. > > I think I am seeing two problems: > > 1) Pasting strings doesn't work on either the PDC console or the > IPL/Linux console. > > 2) Whereas typing on the PDC console works fine, even at some speed, > the same is not true for the IPL/Linux console, which lose many > characters along the way, and act as if the connection is > temporarily lost. Switching the client side terminal program > (I tested with minicom, picocom, screen) makes no difference. > > Do serial cables deteriorate over time? :-) > > > Regards, > jer > -- Jeroen, It is a possibility that the serial cable may be a problem, or there may actually be a hardware issue with the machine itself.(Most of these machines are pretty old by computer world standards) :-) Sometimes just giving them a good cleaning with compressed air, and re-seating the RAM modules will make a difference. Just a thought... ;-) Dave L. P.S. I live in an area where dust is a major problem, and I have to blow the dust and crap out of mine about every 3 months or so. If I don't; when it *does* rain around here and the humidity goes up, I get all kinds of weird errors on some of my machines (the dust becomes electrically conductive). I experience this a lot with my customers machines too. -- Dave Land Land Computer Service xmechanic@landcomp.net ICQ: 676030523