Category Archives: Feisty

Dual screen with docking station using xrandr

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A colleague of mine uses the same laptop as I’ve. But he didn’t like the fact that the build-in display is not used when it’s docked in the docking station. He wants to use his laptop LCD as secondary display when he’s at work.

Unfortunately I’m still on Feisty, but once more Prevu came to the rescue. I found a post about the order in which to build the packages to get xrandr 1.2 (the required version to get the thing to work properly).

And then I used this ubuntu forum post to configure my xorg.conf.

I added:

Viewport 1680 0
Virtual 3360 1050

to the “Screen” Section of my xorg.conf (SubSection “Display”), restarted X and could use the following command to get my display to be a second display and not just a clone:

xrandr --output TMDS-1 --right-of LVDS --mode 1680x1050

To switch back to the clone I use:

xrandr --output TMDS-1 --same-as LVDS --mode 1680x1050

Or you can just restart X again.

This was all.

P.s. If anyone knows how you can dock the D830 on Ubuntu while running, please drop a comment. It kinda hangs when I try to do that and the only thing left for me to do is a hard reset.

Dell Latitude D830 and Ubuntu Feisty (64 bit)

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I recently got a Dell Latitude D830 to work on, since I’ll be travelling quite a lot and for that it’s useful to have your development environment with you on the road. The disadvantage is that you can have your development environment with you all the time.

To get Ubuntu, the development environment we use at magproductions, working on it I had to use the Alternative install, since the Feisty live CD didn’t work. The new Gutsy live CD does work though. Only with that one there is a sound issue, see this ubuntu wiki page for a way to solve that. And well, I’ll wait till Gusty is used in the wild a bit longer before I’m going to upgrade.

Anyway, finally I’ve got it working with my docking station. There was an annoying bug in the intel linux driver which made it impossible for me to work with Ubuntu using the docking station. But a while ago that was fixed in the Gutsy version of the xserver-xorg-video-intel package.
I had to use Prevu to get the display working properly. Good thing the ubuntu forums have a lot of information. I just wish information would be placed together, that’s why I’m making this post now.

For Prevu I first had to understand how that worked. If you get an python exception while tying to build a package you need to look for dependencies. And then you need to build the dependency using Prevu first, before you continue. After building the dependency I had to run prevu-update, so Prevu knew that the dependency was available.

In the end I’ve the following Prevu packages installed:

libgl1-mesa-dri
libgl1-mesa-glx
libglu1-mesa
mesa-utils
prevu
x11-common
xbase-clients
xorg
xprint
xprint-common
xserver-xorg
xserver-xorg-core
xserver-xorg-input-all
xserver-xorg-video-intel
xutils

I also tweaked the touchpad a bit, for example I don’t like it to respond on my thumb when I’m typing. And the default speed is just horrible. For that I used the defaults from another ubuntu forums post. I ended up with

Section "InputDevice"
Identifier      "Synaptics Touchpad"
Driver          "synaptics"
Option          "SendCoreEvents"        "true"
Option          "Device"                "/dev/psaux"
Option          "Protocol"              "auto-dev"
Option          "HorizScrollDelta"      "0"
Option          "SHMConfig"             "1"
Option          "FingerLow"             "30"
Option          "FingerHigh"            "40"
Option          "MaxTapMove"            "100"
Option          "TapButton1"            "1"
Option          "TapButton2"            "3"
Option          "TapButton3"            "2"
Option          "MinSpeed"              "0.15"
Option          "MaxSpeed"              "0.90"
Option          "AccelFactor"           "0.10"
Option          "VertScrollDelta"       "25"
Option          "HorizScrollDelta"      "30"
EndSection

Another problem was that the CDRom drive was not detected. I used yet another site to fix that. Update, that site doesn’t really show that information (anymore?), but this site describes the fix.

Now a list of helpful sites: