[mythtv-users] Soundgraph VFD borked after upgrading Ubuntu

[Jos Hoekstra]

On 12-3-2013 4:49, Karl Newman wrote:
> On Mon, Mar 11, 2013 at 9:31 AM, Jos Hoekstra <joshoekstra at gmx.net 
> <mailto: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
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