[mythtv-users] Missing /dev/lcd0 with Silverstone LC16M

Bob mythtv at cox.net
Tue Feb 12 02:54:13 UTC 2008


Anthony Giggins wrote:
> I've been running myth for about 1 year now running on Mythdora 4.0, So I
> finally got the money together to get a nice HTPC case the (Silverstone
> LC16M) after carefully check compatibility and reading the wiki but I've run
> into a few problems....
>
> I've tested in windows and all is working as expected so there doesn't seem
> to be an hardware issues.
>
> 1. I'm missing /dev/lcd0 for starters so LCDproc is haing issues.
> #LCDd
> imon: ERROR opening /dev/lcd0 (No such file or directory).
> imon: Did you load the iMON VFD kernel module?
> imon: More info in lcdproc/docs/README.imon
> Driver [imon] init failed, return code < 0
> Could not load driver imon
> There is no output driver
> Critical error while initializing, abort.
>
> I've checked that lirc_imon module is loaded and I've tried reloading it
>
> lsmod | grep lirc
> lirc_imon 20612 0
> lirc_dev 18980 1 lirc_imon
>
> 2. The imon pad remote appears to be working most of the time except the pad
> is still working as mouse input which doesn't work in mythfrontend, I'm not
> overly worried about that atm as I've heard mythui should be updated in .21
> to allow for mouse and touch screen support, will this be true?
>
> I also found a few errors in my messages log which may be related.... anyone
> got any ideas?
>
> Feb 10 17:56:18 myth lircd-0.8.2-CVS[2642]: accepted new client on
> /dev/lircd
> Feb 10 17:56:18 myth lircd-0.8.2-CVS[2642]: could not get file information
> for /dev/lirc
> Feb 10 17:56:18 myth lircd-0.8.2-CVS[2642]: default_init(): No such file or
> directory
> Feb 10 17:56:18 myth lircd-0.8.2-CVS[2642]: caught signal
>
> 3. The hotkeys and volume knob isn't working either but I haven't spent much
> time on this as I doubt these will be used often.
>
> Other then the problems above the case is perfect, also the card reader is
> working as expected.
>
> I found http://www.mythtv.org/wiki/index.php/SilverstoneTek_LC16M and
> http://g-ding.tv/?q=node/1719 but I'm still not getting any joy.
>
> any help/ideas would be great. my main problem right now is the missing
> /dev/lcd0 some loggs below
>
> lirc_dev: IR Remote Control driver registered, at major 61
> lirc_imon: no version for "lirc_unregister_plugin" found: kernel tainted.
> /root/lirc-0.8.2pre2/drivers/lirc_imon/lirc_imon.c: Driver for Soundgraph
> iMON MultiMedian IR/VFD w/imon pad2keys patch, v0.3p2k
> /root/lirc-0.8.2pre2/drivers/lirc_imon/lirc_imon.c: Venky Raju
> usbcore: registered new interface driver lirc_imon
>
> Thanks,
>
> Anthony
>
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>
>   
I use KnoppMyth, but this should work for any distribution:

mknod /dev/ldc0 c 180 144

If your kernel uses udev, there may be a better way to do this (udev 
rules).  Also, you may need to grant permissions to the process that 
runs LDCproc so it can read/write to this device.



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