Posts Tagged ‘ubuntu’

Redirect linux console beep to the sound card

Monday, January 19th, 2009

I’ve been frustrated for a long time that my Ubuntu Hardy Heron desktop machine would send a console or terminal beep (e.g. ctrl-G) to the PC speaker for a harsh 1980’s-style tone from under my desk.  I usually turn off the audible beep and live with a visual beep (screen or window flash), but I’ve started using irssi through screen, and I wanted a way to let it notify me of messages even when buried under other windows.

I tried softbeep, but that didn’t work for me.  However, I just found the Fancy Beeper Daemon, which did.  Here’s what I did to set it up.

First, I downloaded and unpacked the beep-2.6.24+.tar.gz tarball.  Then I ran “sudo install.sh” (I already had the linux kernel headers and compiler tools installed.)

For whatever reason,the new /dev/beep device wasn’t globally readable, so “sudo chmod a+r /dev/beep fixed that.  (A more sophisticated approach would have that chown to the console user on login, but this is a single-user machine, so I didn’t bother.)

Once that was done, I needed a daemon to poll that device and play a sound using aplay.  The Fancy Beeper Daemon tarball includes several examples, but I chose to create my own instead: beepd_aplay (to use this, change the user, group and pid file location to suit your own setup).

Then I added that to my .bashrc to run automatically when I log in.   Now, I get a nice sound through my sound card and speakers instead of that harsh system beep.

Gutsy Nvidia Twinview window placement

Sunday, November 11th, 2007

I recently upgraded to Ubuntu Gutsy Gibbon with the built-in Nvidia drivers and discovered that my dual monitor desktop reverted to the annoying behavior of placing windows and dialogs dead center in the expanded desktop, right at the split between the two monitors. It would also maximize windows across both monitors rather than just one.

After trying various configuration options in xorg.conf, I found that a simple change to the Compiz Advanced Desktop Effects Settings fixed this problem, at least for most windows. (Some dialogs still split the screens.)

First, install the compizconfig-settings-manager package, which adds the Advanced Desktop Effects Settings application to the System->Preferences menu.

Next, launch that preference app and select the “Display Settings” tab. Manually set the display output configuration in the “Outputs” section, then uncheck “Detect Outputs”. For example, for my side-by-side 1280×1024 screens:


Display Settings

Logout and restart X (Ctrl-Alt-Backspace). That should fix the problem.

Some of the Compiz effects may wind up restricted to a single monitor. To fix this, many of them have options to span the effect across all monitors. For example, the “Scale” effect has the following option:


Scale Settings