cannot load speakup_decext module

Gregory Nowak greg at
Wed Feb 14 15:59:44 EST 2018

You will need to upgrade your kernel. I believe the fixed external
synth support became available in 4.14 and higher, but don't quote me
on that.


On Wed, Feb 14, 2018 at 01:44:48PM -0500, Rudy Vener wrote:
> Hi all,
> I     am trying to use my Dectalk external (old) with my Vinux speakup system.
> Hoever, executing 
> modprobe speakup_decext ser=0  
> results in:
> modprobe: ERROR: could not insert 'speakup_decext': No such device
> At this point speakup stops talking, the /speakup/synth file               contains "none"
> and the speakup var system does not contain a decext subdirectory,
> and changing the synth file to contain decext does not work.
> So, at that point, I reboot to resurrect speakup using espeak.
> At the moment, my Dectalk is       connected to the /dev/ttyS0 port,    and it speaks
> any text I write to the port. But this is no substitute for it working
> with speakup.
> Executing modinfo speakup_decext
> returns:
> filename:       /lib/modules/4.4.0-36-generic/kernel/drivers/staging/speakup/speakup_decext.ko
> version:        2.14
> license:        GPL
> description:    Speakup support for DECtalk External synthesizers
> author:         David Borowski
> author:         Kirk Reiser <kirk at>
> srcversion:     46ED8AA54EDEE108A987806
> depends:        speakup
> staging:        Y
> intree:         Y
> vermagic:       4.4.0-36-generic SMP mod_unload modversions 686 
> parm:           ser:Set the serial port for the synthesizer (0-based). (int)
> parm:           start:Start the synthesizer once it is loaded. (short)
> Also, executing  modprobe speakup_decext ser=0 returns the same no such device error message.
> Executing modprobe -n -v speakup_decext returns:
> insmod /lib/modules/4.4.0-36-generic/kernel/drivers/staging/speakup/speakup_decext.ko 
> Executing:
> modprobe speakup_decext ser=0 start=1
> gives me the same results, silence and I need to reboot.
> Any suggestions how to get the decext  module to load?
> Thanks.
> Rudy
> -- 
> Rudy Vener
> Website:
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> Speakup at

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