Saturday, April 13, 2013

Linux Tweaks (Mint 13)

This is just a list of simple tweaks I've made to my Mint system.  This post has been sitting as draft for some time and I thought I'd post it tonight -- I'll add more to it as I go. 

Default low display brightness setting on boot:

Keyboard brightness key skips brightness steps:

Install updated kernel (in my case 3.4) to address freeze-ups with my Intel Ivy Bridge video card (this worked):

Adjust wireless mouse sensitivity:

Enable CPU scaling for better laptop battery life

Get HDMI audio output to work

Synopsis: Check 'alsamixer' and make sure the HDMI device isn't muted.  Then, try to test the output:

wskellenger@marquette ~ $ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: Cirrus Analog [Cirrus Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

wskellenger@marquette ~ $ speaker-test -c 2 -t sine -f 261 -D hw:0,3

After running the above test, it suddenly started working.  Prior to this it was not working so I have no idea what changed.  Maybe just *running* alsamixer was what fixed it.

Emulate middle button click on touchpad

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