Serial ports with 32-bit vs. 64-bit processors

[John G. Heim]

Yes, my doubletalk worked during installation. Some of the machines I have been working on do not have sound cards. 
I just took a wildass guess as to how to get the hardware synth working during the install. I figured if you pressed s for speech, you might press g for graphical install. Then I pressed tab and entered my speakup parms, "speakup.synth=ltlk". 

I may have gotten lucky but it worked.


install. 

On May 16, 2013, at 2:06 PM, Ryan Hutchings wrote:

> Hi John,
> 
> Did your doubletalk work during wheezy installation as well?
> 
> I tried using my doubletalk lt with Wheezy 64 bit to install, and got no speech.
> I also tried the latest grml live 64 bit cd, and got no speech after doing a modprobe speakup_ltlk.
> 
> I wonder what determines when speakup will work with hardware speech? if it works on your 64bit system it can't be a 64bit thing.
> I tried this on a laptop if that makes any differences?
> Maybe a device in my laptop interferes with the speakup serial code - i.e. a device is using the i/o address that speakup normally associates with a serial port?
> 
> Ryan
> 
> -----Original Message----- From: John G. Heim
> Sent: Thursday, May 16, 2013 3:59 PM
> To: Speakup is a screen review system for Linux.
> Subject: Re: Serial ports with 32-bit vs. 64-bit processors
> 
> Are you saying you can't get your doubletalk to work at all or only if
> you load the speakup_sot module before loading the speakup_ltlk module?
> I don't know if I've ever tried that. But  I have a 64 bit machine
> running squeeze and another running wheezy. Speakup works with my
> doubletalk on either  machine if I load the speakup_ltlk module
> directly. On the squeeze, I'm running a kernel from squeeze-backports
> and on the wheezy machine, I'm running the stock kernel. Here  is what
> uname -r says on each;
> squeeze: 3.2.0-0.bpo.4-amd64
> wheezy: 3.2.0-4-amd64
> 
> My doubletalk also works with the 64-bit grml live CD.   As I said, I'm
> not entirely sure I ever tried loading the speakup_ltlk module after
> speakup_soft. I would have to say that I have though because I put
> speakup_soft in /etc/modules so it loads during boot.
> 
> On 05/16/13 04:07, Tony Baechler wrote:
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>> Ah, that's what I've been wondering about.  I've asked various people here
>> who claim to have working hardware speech, but never got a response.  My
>> question is if they're running 32-bit or not.  I can not only confirm that
>> it won't work on 64-bit systems but if I try to unload speakup_soft and
>> load speakup_ltlk, it completely locks up the system.  Someone else said
>> they didn't have any problem with serial speech with new kernels and a
>> 32-bit processor, but I couldn't get it confirmed.  Now, my question is
>> what difference would a 64-bit processor make?  Why does it completely
>> lock up here but seems to work for at least three people on older 32-bit
>> processors?  I'm tempted to install 32-bit Debian Wheezy just to see if it
>> makes any difference.  I can say that it doesn't seem to matter on a
>> 32-bit live CD here.
>> 
>> On 5/15/2013 3:45 PM, Adam Myrow wrote:
>>> Ok, I am using the kernel that ships with Debian 7.0, which is listed
>>> as 3.2.0-4-686-pae.  My Dectalk USB works just as it always has in
>>> RS232 mode. In other words, serial support isn't broken for me.  This
>>> is the 32-bit version, so maybe that's the difference.
>>> _______________________________________________ Speakup mailing list
>>> Speakup at linux-speakup.org
>>> http://linux-speakup.org/cgi-bin/mailman/listinfo/speakup
>> 
>> - --
>> Have a good day,
>> Tony Baechler
>> tony at baechler.net
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> 
> -- 
> ---
> John G. Heim, 608-263-4189, jheim at math.wisc.edu
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