[mythtv-users] Soundgraph VFD borked after upgrading Ubuntu

[Karl Newman]

On Tue, Mar 12, 2013 at 1:12 PM, Jos Hoekstra <joshoekstra at gmx.net> wrote:

>  On 12-3-2013 4:49, Karl Newman wrote:
>
> On Mon, Mar 11, 2013 at 9:31 AM, Jos Hoekstra <joshoekstra at gmx.net> wrote:
>
>> Hi all, recently I decided to upgrade my frontend with and SSD to speed
>> up bootup and silence it a bit more.
>> After this update something changed in I guess the kernel since after
>> that I get symptoms which look like the up-arrow is constantly pressed on a
>> keyboard. I was able to determine it was the VFD that's causing these
>> symptoms, however I don't know how to get rid of it.
>> When I boot back in the old system which was Ubuntu 12.04 with kernel
>> 3.2.something  everything is ok.
>> I cannot get that kernel installed in Ubuntu 12.10 and everything that's
>> 3.4 or higher seems to cause these problems.
>>
>> Did anyone with this VFD experience the same problems? If so, how did you
>> get them solved?
>>
>> Thanks in advance,
>>
>> Jos
>>
>
> I don't know which SoundGraph model you have, and unfortunately there are
> several different models, some of which share the same USB ID (15c2:ffdc),
> but the driver uses different, incompatible methods for driving the
> different displays. There is a module called 'imon' (kernel config symbol
> ir_imon) which has a parameter called display_type which I had to set to 1
> in order for the VFD to work. The default autodetect (0) didn't work for
> me. Check your distribution documentation for how to configure module
> parameters.
>
> Karl
>
>  I got the one in the silverstone LC16M(15c2:0036) and it seems I'm not
> the only one experiencing these problems.
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1086120
> It's actually kernel 2.6.32 that works ok all later seem to screw this up.
> Changing the setting via module parameters doesn't help with the issue
> which also occurs on other linux(fedora 18) with a recent kernel.
> I wonder why there seem to be so little users with problems....
>
> Jos
>

Mine came with a Silverstone LC11M, and is the above mentioned 15c2:ffdc
model and it's still working fine with the imon module in 3.7.10 (although
its IR receiver died several years ago so now it's just a display). Did you
try it with a generic kernel, or only with a Fedora-specific kernel?

I found this post from Jarod Wilson, who did a lot of the work to merge the
lirc code into the kernel: http://wilsonet.com/?page_id=95 Maybe it will
give you some ideas about where to look or what to try next.

Karl
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.mythtv.org/pipermail/mythtv-users/attachments/20130312/fc431dfa/attachment.html>