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<TITLE>The Answer Gang 72: RH7.1 onThinkPad 560X cannot find ttyS00</TITLE>
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<H3 align="left"><img src="../../gx/dennis/qbubble.gif"
height="50" width="60" alt="(?) " border="0"
>RH7.1 onThinkPad 560X cannot find ttyS00</H3>
<p><strong>From Shawn Koons
</strong></p>
<p></strong></p>
<p align="right"><strong>Answered By John Karns, Heather Stern
</strong></p>
<P><STRONG>
I have installed the prepackaged laptop version of RH7.1 on an IBM 560X
P233 w/48Meg Ram. dmesg lists ttyS00 as the serial device but when I try
to find the modem on that port the "K Add New Internet Connection"
wizard says it cannot locate a modem.( I read in a search of the Linux
Gazette that ttyS00 indicates that multiple ports are present or enabled.)
</STRONG></P>
<P><STRONG>
<TT>/dev</TT> lists all tty(x) [or at least I think all are listed]
</STRONG></P>
<P><STRONG>
I have also checked under <A HREF="http://www.kde.org/">KDE</A>'s Control Module and it does not list any
Interrupts on 4, which is what dmesg lists as the IRQ for ttyS00.
</STRONG></P>
<P><STRONG>
The modem does work and the computer serial port worked under win98 (no
longer on the HD - I have RH using the whole HD)
</STRONG></P>
<P><STRONG>
Can you help me get the modem (and later my palm pilot sync) working?
Feel free to ask for further information. Be fairly specific on any
commands you want me to run as I am not familiar with much beyond doing
standard installs and rudimentary Linux commands.
</STRONG></P>
<P><STRONG>
Thank you.
</STRONG></P>
<P><STRONG>
Shawn
</STRONG></P>
<blockQuote>
<IMG SRC="../../gx/dennis/bbub.gif" ALT="(!)"
HEIGHT="28" WIDTH="50" BORDER="0"
> [John]
A good starting point might be to check the "Linux on Laptops" web site.
There was recently a thread on it here.
</blockQuote>
<blockQuote><DL><DT>
<IMG SRC="../../gx/dennis/bbub.gif" ALT="(!)"
HEIGHT="28" WIDTH="50" BORDER="0"
> [Heather]
<DD><A HREF="http://www.linux-laptop.net"
>http://www.linux-laptop.net</A>
</DL></blockQuote>
<blockQuote>
Please note that is singular. The plural version goes to some opportunistic
laptop vendor, who as far as I can tell, doesn't actually know nor care much
about Linux specifically.
</blockQuote>
<blockQuote>
There's also Werner Heuser's Mobilix, <A HREF="http://www.mobilix.org"
>http://www.mobilix.org</A>
</blockQuote>
<blockQuote>
wvdialconf is good at spotting modems. It won't tell you what kind, but it
will tell you the far more important detail, which is, does it work when I
try to ask it about doing dialup? And in the case of softmodems, yes, if
your softmodem driver is properly loaded, then it will also properly respond
to wvdialconf's tickling.
</blockQuote>
<blockQuote>
<IMG SRC="../../gx/dennis/bbub.gif" ALT="(!)"
HEIGHT="28" WIDTH="50" BORDER="0"
> [John]
Unfortunately, most laptops these days use a form of the dreaded
winmodems. Which one your particular machine has will determine your
chances of success, so checking the laptop site will probably save you
some time.
</blockQuote>
<blockQuote>
Also the command "lspci" might give you specific info about which modem
your particular machine has installed.
</blockQuote>
<blockQuote>
<IMG SRC="../../gx/dennis/bbub.gif" ALT="(!)"
HEIGHT="28" WIDTH="50" BORDER="0"
> [Heather]
</blockQuote>
<blockQuote>
From that you may be able to visit the search engines and see if it is a
known real modem or if it needs "linmodem" support. Linmodems.org will
tell you what is currently supported. It seems like every time I turn
around something that was previously an absolutely lost cause is barely
supported, or the vendor is now on the bandwagon. If yours isn't on the
good-boys list I wouldn't hold my breath though. The things tend to stay
in the "barely" phase for way too long.
</blockQuote>
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<H5 align="center">This page edited and maintained by the Editors
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<BR>Published in issue 72 of <I>Linux Gazette</I> November 2001</H5>
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