Public bug reported:
Binary package hint: displayconfig-gtk
I just installed Ubuntu 7.10 64-bit. I have all the latest updates and
I'm using the proprietary NVidia driver (installed using the Restricted
Drivers tool). My hardware is as follows:
Intel Core Duo Extreme Quad-core 3 GHz
4 GB RAM
2 x 500 MB SATA harddisk
2 x NVidia Geforce 8800 GTX
2 x LG Flatron 19" TFT monitor, 1280 x 1024 pixels
"Screens and Graphics" shows the first graphics card to be using the
nvidia driver and the second card to be using the nv driver (which I
cannot change, i filed a separate bug report for that). Note that the
two monitors are attached to the first graphics card; the second card
currently has no monitors attached to it.
Ubuntu will only use one monitor and I cannot get it to activate the
second one. The "Screens and Graphics" tool does show two screens. Oddly
enough they are both named "Screen 1". The first one is set to "Default
screen". The second one is set to "Disabled" and the "Secondary screen"
choice is disabled. I attached a screenshot showing what I mean.
If I try setting the second screen to "Default screen", the tool sets
the first one to "Disabled"! And it does not seem to make any practical
difference, Ubuntu continues to use only my first monitor.
In another bug report I saw a hint that Ubuntu does not support setting
up multiple displays if you use the proprietary NVidia driver. If that
is the case there is still a bug in displayconfig, namely the fact that
it shows two "Screen 1" entries! Also if this is the case I think it
should be documented better. For example, either the Restricted Drivers
Manager or the Screens and Graphics tool (or preferably both) should
display a warning that it will not be possible to use multiple monitors
if you use the nvidia driver.
** Affects: displayconfig-gtk (Ubuntu)
Importance: Undecided
Status: New
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cannot activate second monitor with two geforce 8800 GTXs
https://bugs.launchpad.net/bugs/215153
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