Skip to main content

Linux on a Compaq Presario V2000

GNU/Linux (Ubuntu 5.10) on a Compaq Presario V2000

How to make the volume keys work

Objective: Map the volume keys (Volume up/down/mute) to amixer (command-line mixer for ALSA soundcard driver).

Find the keycode of the three keys using xev. After executing xev as an ordinary user in the terminal, it creates a window and then asks the X server to send it events whenever anything happens to the window (such as it being moved, resized, typed in, clicked in, etc.).

Example: after pressing the keyboard key m, you will be see the following report:

KeyPress event, serial 27, synthetic NO, window 0x2800001,
root 0x48, subw 0x0, time 10163530, (97,69), root:(929,430),
state 0x0, ''keycode 58 (keysym 0x6d, m)'', same_screen YES,
XLookupString gives 1 bytes: (6d) "m"

KeyRelease event, serial 27, synthetic NO, window 0x2800001,
root 0x48, subw 0x0, time 10163645, (97,69), root:(929,430),
state 0x0, ''keycode 58 (keysym 0x6d, m)'', same_screen YES,
XLookupString gives 1 bytes: (6d) "m"

These two events are the pressing and de-pressing of key m. The keycode is 58 and it is symbolically mapped to character/string m.

Try pressing the three keys (volume up/down/mute), you will most likely get the following keycodes:

* 174 - volume down
* 176 - volume up
* 160 - mute

with no symbolic mapping. To map these keycodes, create the file in your home folder ~/.Xmodmap with the following mapping:

keycode 174 = XF86AudioLowerVolume
keycode 176 = XF86AudioRaiseVolume
keycode 160 = XF86AudioMute

Use your window manager's (e.g. Gnome metacity, mine is Xfce) key shortcut manager. This allows you to map a keyboard shortcut to a command.

Example: (applicable only in Xfce)

Settings > Xfce 4 Settings Manager > Window Manager > Keyboard (tab)

Under command shortcuts, click none to add a command, then simulate the key (i.e. pressing the volume up/down/mute key)

The commands to adjust the mixer (using amixer) are the following:

* /usr/bin/amixer sset Master toggle - toggle mute
* /usr/bin/amixer sset Master 1- unmute - decrease vol
* /usr/bin/amixer sset Master 1+ unmute - increase vol

Master is the (grand) master mixer control.

Hope that helps.


If you have questions, post them at Ubuntu Forums, then leave a comment.

* Linux (Ubuntu 5.10) on a Compaq V2000
* Ubuntu GNU/Linux on the HP Compaq nw8240


Popular posts from this blog

Globe's HOOQ.TV an (unethical) scam!!

After being terribly disappointed with the subscription stage and after also after a very disappointing test drive (at least Netflix tries to be do-no-evil), I am now very disappointed with the un-subscription of with Globe.

Globe sends me a message:

Hi! We'd like to remind you that your free HOOQ will end in 7 days on 10/27/2015. Upon expiry, your subscription will auto-renew to the paid version for P149 per month. If you don't want the paid version, text HOOQ STOP to 8888. before the expiry date. Thank you!

I send the HOOQ STOP to 888 and received:

Sorry, you have entered an invalid keyword. Please make sure your keyword is correct with no extra characters and spaces. For more info on promos, dial *143#, FREE from your Globe/TM mobile phone.

I called Globe Support (211).

Here's the scam:

- GoSurf 999 comes with the HOOQ Free Plan

- After the Free HOOQ Plan (which you did not use because it sucks) expires, it will auto-renew without your consent (!!! UNETHICAL !!!…

Use Private Internet Access (PIA) in DigitalOcean

tags: PrivateInternetAccess, Digital Ocean, VPS, VPN

This runs the PIA VPN using OpenVPN all from the command line.

sudo apt-get install openvpn network-manager-openvpn Not sure if you need network-manager-openvpn.

sudo wget Extract. Move ca.crt and crl.pem to /etc/openvpn

Move "Hong Kong.ovpn" to "/etc/openvpn/Hong Kong.config" for example.

Modified the following lines.

auth-user-pass /etc/openvpn/login.conf route-up /etc/openvpn/
These are the contents of these files.

# cat /etc/openvpn/login.conf username password
Replace with your username and password.

# cat  #!/bin/bash
ip route flush table 100 ip route flush cache ip rule add from x.x.x.x table 100 ip route add table 100 to y.y.y.y/y dev ethX ip route add table 100 default via z.z.z.z
Replace x.x.x.x with your public IP address, y.y.y.y/y with your subnet. Compute using Hint: Input public IP and netmask, y…

Ubuntu on Intel D945GCLF (with Intel Atom)

The rig: D945GCLF board
Intel Atom @ 1.6GHZ w/HTIt looks like it's a linux kernel bug:
The ethernet controller is:Realtek Semiconductor Co., Ltd. RTL8101E PCI Express Fast Ethernet controller (rev ff) does not seem to work in any of the Ubuntu versions.Fix: recompile the kernel with patchYou can download my patched packages here (currently uploading, let me know if something is missing): I got the .udeb packages because of this warning: dpkg-gencontrol: warning: deb package with udeb specific field Kernel-Versionor you can do the following steps if you don't trust me:
apt-get source linux-source-2.6.24apt-get build-dep linux-source-2.6.24aptitude install install devscripts build-essential fakerootcd linux-2.6.24/Get this patch: -p 1 < patch-r8169.patchdebuild -us -uc -bInstall the kernel that …