Ubuntu – How to force X to use the vesa driver

nouveauxorg

I have an old nvidia card not supported anymore (Ti4200Go agp 8x).
The nouveau driver has problems drawing the cursor and shows ugly pictures on the screen.
How do I try the vesa driver? I'm sad the vesa won't display the full 1680x1050 native resolution, but at least the laptop will be usable.

Best Answer

Try blacklisting the nouveau driver by adding the line blacklist nouveau to the file /etc/modprobe.d/blacklist.conf(you will need root privilege). This will prevent that driver from loading. Also comment any line like blacklist vesafb by replacing it with #blacklist vesafb in the file /etc/modprobe.d/blacklist-framebuffer.conf

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Ubuntu – How to force native resolution on secondary monitor

It depends on what your /var/log/Xorg.0.log is outputting. In some cases it could be due to the fact that the EDID is not being detected properly. Tragically, it means you have to do some fancy footwork to make this work properly.

In previous attempts I also tried setting the xrandr to not avail. Then I discovered this little tip (http://ubuntuforums.org/archive/index.php/t-1470168.html)

Research:

Go to the monitors website and determine the proper horizontal and vertical refresh ranges.

Modifications:

Edit your xorg.conf - sudo nano /etc/X11/xorg.conf
Within the Monitor section (see below) add your new ranges

Section "Monitor"



Identifier     "Monitor0"
VendorName     "Unknown"
ModelName      "CRT-0"
HorizSync      LowValue - HighValue
VertRefresh    LowValue - Highvalue
Option         "DPMS"

EndSection

Note: You do need the dash between. Also it's recommended that you add a # in front of the old lines so you have a copy that you can undo if all else fails.

Reboot your machine

Best Answer

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Ubuntu – How to force native resolution on secondary monitor

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