Dual monitor issues

[beaversharkey]

I am trying to connect a secondary monitor to my desktop, however is does not respond. I have tried 'detecting monitors' in monitor preferences but it is not detecting my (secondary) monitor. I am new to Linux (running 10.04 lucid) so it would be appreciated that if there are any technical steps they be written as in one of those "Linux for Dummies" books. Did a little resarch and both monitors are installed. Please let me know of any additional info you might need!



Looking through other forums I thought this information might help

beaversharky@beaversharky-desktop:~$ hwinfo --gfxcard
20: PCI 100.0: 0300 VGA compatible controller (VGA)
[Created at pci.318]
UDI: /org/freedesktop/Hal/devices/pci_1002_4153
Unique ID: VCu0.XZKoWlkzw1D
Parent ID: vSkL.X0yl1qhFqsB
SysFS ID: /devices/pci0000:00/0000:00:01.0/0000:01:00.0
SysFS BusID: 0000:01:00.0
Hardware Class: graphics card
Model: "ATI RV350 AS"
Vendor: pci 0x1002 "ATI Technologies Inc"
Device: pci 0x4153 "RV350 AS"
SubVendor: pci 0x174b "PC Partner Limited"
SubDevice: pci 0x0200
Driver: "radeon"
Driver Modules: "drm"
Memory Range: 0xe0000000-0xefffffff (rw,prefetchable)
I/O Ports: 0xc800-0xc8ff (rw)
Memory Range: 0xff8f0000-0xff8fffff (rw,non-prefetchable)
Memory Range: 0xff8c0000-0xff8dffff (ro,prefetchable,disabled)
IRQ: 16 (71408 events)
I/O Ports: 0x3c0-0x3df (rw)
Module Alias: "pci:v00001002d00004153sv0000174Bsd00000200bc03sc00 i00"
Driver Info #0:
XFree86 v4 Server Module: radeon
Driver Info #1:
XFree86 v4 Server Module: radeon
3D Support: yes
Extensions: dri
Config Status: cfg=new, avail=yes, need=no, active=unknown
Attached to: #10 (PCI bridge)

21: PCI 100.1: 0380 Display controller
[Created at pci.318]
UDI: /org/freedesktop/Hal/devices/pci_1002_4173
Unique ID: NXNs.YTY4Q11vPj0
Parent ID: vSkL.X0yl1qhFqsB
SysFS ID: /devices/pci0000:00/0000:00:01.0/0000:01:00.1
SysFS BusID: 0000:01:00.1
Hardware Class: graphics card
Model: "ATI RV350 AS [Radeon 9550] (Secondary)"
Vendor: pci 0x1002 "ATI Technologies Inc"
Device: pci 0x4173 "RV350 AS [Radeon 9550] (Secondary)"
SubVendor: pci 0x174b "PC Partner Limited"
SubDevice: pci 0x0201
Memory Range: 0xd0000000-0xdfffffff (rw,prefetchable)
Memory Range: 0xff8e0000-0xff8effff (rw,non-prefetchable)
Module Alias: "pci:v00001002d00004173sv0000174Bsd00000201bc03sc80 i00"
Config Status: cfg=new, avail=yes, need=no, active=unknown
Attached to: #10 (PCI bridge)

Primary display adapter: #20


Thanks!

[LFA2711]

Are you hooking the monitor up when the primary computer is already running? This will not work, even if you press detect monitors. However there are other options.

1) Turn on and connect the monitor at startup

2) (a little trick that works for me) Start playing a video with Movie Player (should come with Ubuntu) and go into fullscreen.