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kmkittre
PostPosted: Sat Feb 17, 2007 12:09 pm 
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Joined: Tue Jul 12, 2005 8:01 am
Posts: 670
Location: Salem, MA
I purchased an MSI K8NGM2-NBP motherboard. I replaced my frontend motherboard with this one and did not do a re-install of R5D1. Everything is working just fine, but I cannot get my serial port IR receiver to work. I even tried the one that's working just fine on my other frontend. So, I don't think it's the receiver. I recompiled LIRC with version 0.8.1 and that also didn't seem to make a difference. I'm thinking that there may be something wrong with the serial header as I don't even get anything when I do a mode2. Is there any way to test the serial port? Would re-installing Knoppmyth do anything?
Thanks in advance for any suggestions.
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tjc
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PostPosted: Sat Feb 17, 2007 1:54 pm 
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Posts: 9551
Location: Arlington, MA
I think this is covered in the R5E50 upgrade hints thread. Have you checked to make sure that X isn't trying to open it for a serial mouse and that the mythtv user is a member of the dialout group? http://mysettopbox.tv/phpBB2/viewtopic.php?t=13108 See Known Change #8 in the head posting, and search for a posting by ohrock on the 3rd page.
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kmkittre
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PostPosted: Sat Feb 17, 2007 3:16 pm 
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Joined: Tue Jul 12, 2005 8:01 am
Posts: 670
Location: Salem, MA
Thanks for the tips, tjc, but do these really apply to me as I'm using R5D1?

[EDIT:]
I realize now that maybe I was a little unclear as to what I did. I was running R5D1. I turned off the computer, replaced the motherboard, and then turned the computer back on. Everything is running great except I can't get my serial IR receiver to work. The only difference I can think of is that my old mobo had a standard serial port, and this new one has a serial header instead.
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kmkittre
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PostPosted: Sat Feb 17, 2007 3:42 pm 
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Joined: Tue Jul 12, 2005 8:01 am
Posts: 670
Location: Salem, MA
I went ahead and tried those suggestions anyway...

When I look at my /etc/group file my dialout line is this:
Code:
dialout:*:20:


versus what you posted:
Code:
dialout:x:20:mythtv


I changed it to this:
Code:
dialout:*:20:mythtv


Also, regarding ohrock's post, when I type
Code:
lsof /dev/ttyS*

Nothing is listed
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kmkittre
 Post subject:
PostPosted: Sat Feb 17, 2007 4:01 pm 
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Joined: Tue Jul 12, 2005 8:01 am
Posts: 670
Location: Salem, MA
More info if it helps:
I see this in /var/log/dmesg:
Code:
Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing disabled
serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
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tjc
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PostPosted: Sat Feb 17, 2007 4:37 pm 
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Joined: Thu Mar 25, 2004 11:00 am
Posts: 9551
Location: Arlington, MA
Check to make sure that there is an appropriate setserial invocation being made in the init scripts... Folks usually do this in bootmisc.sh See ethernut's posting here: http://mysettopbox.tv/phpBB2/viewtopic.php?t=13097

Also double check the ownership of the port in /dev using:
Code:
root@black2:/dev# ls -al /dev/ttyS*
crw-rw---- 1 root dialout 4, 64 Feb  5 23:44 /dev/ttyS0
crw-rw---- 1 root dialout 4, 65 Feb  5 23:44 /dev/ttyS1
crw-rw---- 1 root dialout 4, 66 Feb  5 23:44 /dev/ttyS2
crw-rw---- 1 root dialout 4, 67 Feb  5 23:44 /dev/ttyS3
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kmkittre
 Post subject:
PostPosted: Sat Feb 17, 2007 7:07 pm 
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Joined: Tue Jul 12, 2005 8:01 am
Posts: 670
Location: Salem, MA
yeah, here's what I have in my bootmisc.sh:
Code:
#serial port remote
setserial /dev/ttyS0 uart none
modprobe lirc_serial
/usr/local/sbin/lircd
/usr/local/sbin/lircmd


Code:
root@mythfront1:/dev# ls -al /dev/ttyS*
crw-rw-rw-  1 root dialout 4, 64 May  7  2004 /dev/ttyS0
crw-rw-rw-  1 root dialout 4, 65 May  7  2004 /dev/ttyS1
crw-rw-rw-  1 root dialout 4, 66 May  7  2004 /dev/ttyS2
crw-rw-rw-  1 root dialout 4, 67 May  7  2004 /dev/ttyS3
crw-rw-rw-  1 root dialout 4, 68 May  7  2004 /dev/ttyS4
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kmkittre
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PostPosted: Sat Feb 17, 2007 7:27 pm 
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Posts: 670
Location: Salem, MA
Also, when I do a list of my /dev/lirc devices:
Code:
root@mythfront1:~# la /dev/lirc*
crw-r--r--  1 root root 61, 0 Jun 21  2006 /dev/lirc
crw-r--r--  1 root root 61, 1 Oct  1  2005 /dev/lirc1
srw-rw-rw-  1 root root     0 Feb 17 18:16 /dev/lircd
prw-r--r--  1 root root     0 Jul 29  2004 /dev/lircm


I thought maybe I should be using /dev/lirc1? So I tried setting my hardware.conf to it:
Code:
DEVICE="/dev/lirc1"


This did not appear to make a difference...
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kmkittre
 Post subject:
PostPosted: Sat Feb 17, 2007 7:31 pm 
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Joined: Tue Jul 12, 2005 8:01 am
Posts: 670
Location: Salem, MA
Would I potentially gain something by doing a fresh install of knoppmyth on this machine?
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tjc
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PostPosted: Sat Feb 17, 2007 10:26 pm 
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Posts: 9551
Location: Arlington, MA
Running lirc-reconfigure.sh would do most of what an install would do as far as this goes.
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kmkittre
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PostPosted: Sat Feb 17, 2007 11:01 pm 
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Joined: Tue Jul 12, 2005 8:01 am
Posts: 670
Location: Salem, MA
lirc-reconfigure.sh is not doing anything, where should I be running this script?

Edit: nevermind, it's lirc-reconfig.sh
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kmkittre
 Post subject:
PostPosted: Sat Feb 17, 2007 11:04 pm 
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Joined: Tue Jul 12, 2005 8:01 am
Posts: 670
Location: Salem, MA
Does that do anything other than setup an lircd.conf and lircrc file? I mean, if even mode2 is not showing any remote activity, will running this script potentially change any of that?
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tjc
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PostPosted: Sun Feb 18, 2007 10:16 am 
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Joined: Thu Mar 25, 2004 11:00 am
Posts: 9551
Location: Arlington, MA
Sorry about the bad name, I was typing from memory... The script also starts the daemon (and sets things up so it starts at boot time) which should load the correct modules. Try running lsmod to see what drivers have been loaded and looking in /dev to see what devices are there.
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kmkittre
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PostPosted: Sun Feb 18, 2007 2:03 pm 
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Joined: Tue Jul 12, 2005 8:01 am
Posts: 670
Location: Salem, MA
Code:
root@mythfront1:~# lsmod | grep lirc
lirc_serial            13952  1
lirc_dev               14708  1 lirc_serial


I'm not sure what I should be looking for in /dev?


Last edited by kmkittre on Mon Feb 19, 2007 7:55 am, edited 1 time in total.
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tjc
 Post subject:
PostPosted: Sun Feb 18, 2007 2:08 pm 
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Joined: Thu Mar 25, 2004 11:00 am
Posts: 9551
Location: Arlington, MA
Yow. :shock: Didn't need the whole thing. You're just looking for the lirc modules and anything that they depend on... Like this...
Code:
root@black2:/var/log# lsmod | grep lirc
lirc_i2c               12420  0
lirc_dev               16628  1 lirc_i2c
i2c_core               20864  20 wm8775,cx25840,ivtv,nvidia,lirc_i2c,cx88_vp3054_i2c,
cx88xx,saa7134_dvb,dvb_pll,saa7134,ir_kbd_i2c,tda1004x,dvb_bt8xx,bttv,saa7115,msp3400,
tuner,i2c_algo_bit,tveeprom,i2c_nforce2


Is your lircd getting passed the right driver info? What does this show for you?
Code:
root@black2:~# pgrep -fl lirc
3998 lirc_dev
5383 /usr/sbin/lircd --driver=default --device=/dev/lirc0


A search through recent posts for lirc_serial might also be productive.
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