Can I change the volume keys bingings from master channel to PCM?

[Coutsos]

I spent a few hours of my morning fussing about this very problem. Luckily I've got a solution. Of sorts. It works, that's all that I'm worried about

Step one:
Get the keytouch source (don't worry, this is going to be relatively painless)
source (.tar.gz)

Step two:
Extract.

Step three:
Go to the plugins folder and open "amixer.c" in your text editor of choice. Here's the easiest part: Replace all occurrances of "Master" with "PCM". Bam. You are ~90% done. ([i]Note: if there's some other channel you wish to use, replace "PCM" with the appropriate name).

You should also change the plugin name (I prefer to add a seperate plugin instead of replacing the original). Find the line that says:

{"Amixer", "Marvin Raaijmakers", "GPL 2", "2.2",

And change it to something like:

{"Amixer Modified", "Marvin Raaijmakers", "GPL 2", "2.2",

And, I guess, change the nearby

"amixer.so",

line to:

"amixer_modified.so",

Don't forget to save!

Step four:
Go back to the main keytouch directory to run these two commands:

$ ./configure
$ make

When I tried "make install" I got errors about "/usr/local/etc/" not existing. Probably for the best, because I'd rather not have this mess up my already installed ubuntu package.
Now that it's compiled, go to the plugins directory again, and rename "amixer.so" to "amixer_modified.so" (or whatever you decided on).

Step five:

$ sudo cp amixer_modified.so /usr/local/lib/keytouch/plugins/

Step six:
Go to System -> Administration -> Keytouch
Under the "Preferences" tab click the "Import..." button, and navigate to /usr/local/lib/keytouch/plugins/" and select the file you just copied there.

Step seven:
Back to the "Key settings" tab, configure "Mute", "Volume Up", and "Volume Down" to use the new plugin and appropriate function.

Step eight:
Throw a party! (invite please?)

I hope that helps people. When I was looking for how to solve this problem I saw alot of people were struggling with this and didn't come to any solution. In the end, this feature is really not that important (and hardly useful), but I can't deny that I like having it.

[onispawn]

Here is a keytouch keyboard I made that controls the pcm volume. It works great on my Inspiron 9300, but it should work on anything since its using a simple bash script to access PCM volume settings. Just simply import the file into keytouch and the defaults should work for you needs. You can always change the bash commands a little bit to control what ever you need.

[mcgregorandrew]

Originally Posted by onispawn Here is a keytouch keyboard I made that controls the pcm volume. It works great on my Inspiron 9300, but it should work on anything since its using a simple bash script to access PCM volume settings. Just simply import the file into keytouch and the defaults should work for you needs. You can always change the bash commands a little bit to control what ever you need.

Hi,

I did find that
amixer sset PCM 1+ unmute
amixer sset PCM 1- unmute

turn the volume up and down, but I can't get keytouch to make any settings take effect. I can load different keyboards and that all makes sense, but I get messages like this when I start it up:

(keytouch:2000: GLib-CRITICAL **: g_hash_table_lookup: assertion `hash_table != NULL' failed

(keytouch:2000: libgnomevfs-WARNING **: Internal error: the configuration system was not initialized. Did you call _gnome_vfs_configuration_init?

(keytouch:2000: GLib-CRITICAL **: g_hash_table_lookup: assertion `hash_table != NULL' failed

(keytouch:2000: libgnomevfs-WARNING **: Internal error: the configuration system was not initialized. Did you call _gnome_vfs_configuration_init?
keytouchd: no process killed

And this message when I press "Apply":
Warning: Not all keys can be grabbed by this program. This
can be caused by another program which is already
grabbing these keys.


when I run keytouch from the keyboard.

Any ideas what is stopping keytouch from working?

[VuDu]

http://ubuntuforums.org/showpost.php...34&postcount=8

http://gnomesupport.org/forums/viewtopic.php?t=10879 Looks like it's a know bug. Too bad they haven't fixed it yet. http://bugzilla.gnome.org/show_bug.cgi?id=173035

[qiemem]

Hey all, definitely the most productive thread on this issue.

Anyway, I, like mcgregorandrew, can't get the changes to take effect. When running keytouch from terminal, I get this when I hit 'apply':

Warning: Not all keys can be grabbed by this program. This
         can be caused by another program which is already
         grabbing these keys.

Is there a way to disable Gnome's default keyboard shortcut program?

Update:
Heh, just had to restart... Works great now!

[ingomueller.net]

Hi!

I had a similar problem one month ago and have spent a lot of time in its solution. As I stumbled upon this post, probably others will, so I'll post the link to a howto I wrote:

http://alsa.opensrc.org/How_to_use_s..._master_volume

I hope this helps someone...

Ingo

[VuDu]

http://ubuntuforums.org/showpost.php...79&postcount=9

Originally Posted by VuDu http://bugzilla.gnome.org/show_bug.cgi?id=173035 Check the topic again... Comment #36 from Jan Arne Petersen (points: 1 2007-01-08 15:41 UTC [reply] Created an attachment (id=79756) [edit] Patch to implement the sound-capplet and keybindings part Comment #37 from Thomas Wood (control-center developer, points: 15) 2007-01-08 22:40 UTC [reply] Patch looks generally good - let's get this in got 2.18! Comment #38 from Rodrigo Moya (control-center developer, points: 21) 2007-01-08 22:55 UTC [reply] Patch committed Great news, no?

[MarvinR]

Originally Posted by Coutsos I spent a few hours of my morning fussing about this very problem. Luckily I've got a solution. Of sorts. It works, that's all that I'm worried about

In the latest (beta) version of keyTouch it is possible to select the mixer channel that should be used for controlling the volume.