Setting up ATI remote wonder with evdev

Using the official mythtv wiki I managed to get my ATI remote working without lirc on one of my boxes running Ubuntu 11.10. Unfortunately the trick, for some reason, didn’t work on 12.04.

I found a solution on the mythtvtalk forum, using evdev.conf file instead of a statement in xorg.conf

We need to install a patched evdev-driver that will understand keys greater than 255 by giving access to the “event_key_remap option”.

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mythtv db update postinstall fails, wrong password

It happened me several times:

During updating mythtv-database package the root password is used. The postinstall script will use mysql password stored in the debconf db, but if in the meantime the mysql rootpassword has changed, the update will break.
To reveal the “old” password, this little script might help:

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Nvidia stealing audio

I recently tried to connect a Samsung led- tv to a simple Nvidia G210 display adapter, causing my analog sound to dissappear completely.
The fix can be found as decribed here:

http://analogbit.com/hdmi_dvi_audio

First update nvidia drivers to the latest:

sudo apt-add-repository ppa:ubuntu-x-swat/x-updates

sudo apt-get update sudo

apt-get install nvidia-current

Then following this instruction found on the mythtv website:

http://www.mythtv.org/wiki/Configuring_Analog_Sound_DVI_to_HDMI#Apply_Modified_EDID

In short, the /etc/X11/xorg.conf needs to be adjusted with a modified EDID which prevents audio to be send through HDMI:

Open your ‘/etc/X11/xorg.conf’ file, and go to the Device section for your video card. Add the line
Option "CustomEDID" "DFP-0:/etc/X11/edid.modified.bin"
to tell the driver to use your custom block rather than acquiring one from your TV. The changes will take effect after a restart of X.

LCD on Fusion remote black

I had some difficulties to enable the LCD on this HTPC. Just for reference a couple of
notes:

At first I followed the instructions as in: http://www.mythtv.org/wiki/LCDproc
The fresh build imon driver didn’t work for me.

Then I stumbled upon: http://codeka.com/index.php, suggesting me patching the current lcdproc-0.5.2 package to use the imonlcd driver instead.

Update: in the meantime fully documented here. In short in my case:

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