[Bug 13412] Gutsy - Second monitor will not turn on with Radeon driver

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=13412





------- Comment #4 from agd5f at yahoo.com  2007-11-30 14:13 PST -------
(In reply to comment #0)
> I have a dual-head CRT-display setup that worked with Ubuntu Feisty Fawn. It
> consists of an ATI Radeon 9600 (RV350), a Compaq P1100, and a Compaq V1100
> (both CRT monitors).
> 
> Attached is my xorg.conf file. These are the versions included with Gutsy
> Gibbon:
>  xrandr-1.2
>  xorg-7.2
>  xserver-xorg-7.2
>  xserver-xorg-core-1.3
>  xserver-xorg-video-ati-6.7.195
> 
> When my computer boots, both the kdm and KDE desktop only activates the VGA-0
> output (Compaq P1100 CRT monitor-Left). When I execute these commands, the
> desktop grows correctly but the DVI-0 output does not turn on the Compaq V1100
> CRT monitor-Right:
> 
> xrandr --addmode DVI-0 1600x1200
> xrandr --output DVI-0 --mode 1600x1200 --right-of VGA-0
> 
> 
> Is the problem:
> 
>    1. Do I need xorg-7.3 and xserver-xorg-core-1.4?

It should work ok with xserver 1.3

>    2. Is the monitor too old to be detected (~1999)?

possibly.  Was the monitor capable of DDC on the old driver?  Does it help if
you swap which ports the monitors are plugged into?  From your log it looks
like the monitor does not support ddc.

>    3. The DVI->VGA adapter I use?

possibly.  try swapping monitors.

>    4. Do I need to add a Device Section in xorg.conf for the PCI:1:0:1
> secondary adapter?

No.  you can ignore that device.  It's just a place holder for the windows
driver.

>    5. Is there a bug in the radeon driver?
> 

depends on the monitor.  you can force the monitor on using xrandr:
xrandr --output DVI-0 --set dvi_monitor_type analog
xrandr --addmode DVI-0 1600x1200
xrandr --output DVI-0 --mode 1600x1200 --right-of VGA-0


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