Author Topic: HELP! Dual monitor issue.  (Read 663 times)

Offline teh-p3nsi0n3r

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HELP! Dual monitor issue.
« on: September 29, 2010, 12:26:28 am »
Ok so I've finally got round to adding a 2nd monitor to my rig. Running PinguyOS dual mode glory.  ;D

Everything is working fine except for Compiz/Desktop effects. The card i have is a ATI Radeon 9550. The main monitor i use is a Samsung Syncmaster T200HD. Compiz has always worked fine at resolution of 1680 x 1050 by itself before adding a 2nd monitor.

After a little searching about i believe that the driver i am using is the default "radeon" driver. And the ATI Catalyst drivers. (have tried anyway). No longer support my card. And it is not possible to use any old drivers on ubuntu 10.04 from previous versions. So I am stuck with the default drivers.

Compiz Also works fine when the desktop is set to duplicate on both screens. But I am "extending" the desktop on to the 2nd monitor as i do not want to duplicate my desktop on 2 screens, and this is where i am having problems.

When I have the screens set to extend, the desktop effects switch off. Now i beleive this is something to do with resolutions being over a certain size i read?. I am not sure if this is true.

I am running my Samsung syncmaster T200HD at 1680 x 1050, and my old CRT at a reslution of 1280 x 1024.

I have tried reducing these resolutions to a very low resolution on both monitors (still set to extend) but trying to enable desktop effects still does not work.

Here is some terminal information below, if it is of any help?.

Thanks.



Running this in the terminal , i got the following.

Quote
hwinfo --gfxcard
23: PCI 100.0: 0300 VGA compatible controller (VGA)             
  [Created at pci.318]
  UDI: /org/freedesktop/Hal/devices/pci_1002_4153
  Unique ID: VCu0.yvUasOMnfI3
  Parent ID: vSkL.ITQqGs0XM26
  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 0x148c "C.P. Technology Co. Ltd"
  SubDevice: pci 0x2087
  Driver: "radeon"
  Driver Modules: "drm"
  Memory Range: 0xf0000000-0xf7ffffff (rw,prefetchable)
  I/O Ports: 0xde00-0xdeff (rw)
  Memory Range: 0xfe9e0000-0xfe9effff (rw,non-prefetchable)
  Memory Range: 0xfea00000-0xfea1ffff (ro,prefetchable,disabled)
  IRQ: 16 (197302 events)
  I/O Ports: 0x3c0-0x3df (rw)
  Module Alias: "pci:v00001002d00004153sv0000148Csd00002087bc03sc00i00"
  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)

24: PCI 100.1: 0380 Display controller
  [Created at pci.318]
  UDI: /org/freedesktop/Hal/devices/pci_1002_4173
  Unique ID: NXNs.xaX+Y0hKOmF
  Parent ID: vSkL.ITQqGs0XM26
  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 0x148c "C.P. Technology Co. Ltd"
  SubDevice: pci 0x2086
  Memory Range: 0xe8000000-0xefffffff (rw,prefetchable)
  Memory Range: 0xfe9f0000-0xfe9fffff (rw,non-prefetchable)
  Module Alias: "pci:v00001002d00004173sv0000148Csd00002086bc03sc80i00"
  Config Status: cfg=new, avail=yes, need=no, active=unknown
  Attached to: #10 (PCI bridge)

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Offline Jeff

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Re: HELP! Dual monitor issue.
« Reply #1 on: September 30, 2010, 01:59:49 pm »
Hate to be the bearer of bad news but this a limitation in the current ATI driver + your card. The FOSS developers on the ATI driver have been working hard to get it up to par - but it is not there quite yet so we still see issues like this on occasion :-/

For the best 3D results under Linux always use an Intel or nVidia chipset.

~Jeff

Offline teh-p3nsi0n3r

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Re: HELP! Dual monitor issue.
« Reply #2 on: September 30, 2010, 03:31:32 pm »
Hate to be the bearer of bad news but this a limitation in the current ATI driver + your card. The FOSS developers on the ATI driver have been working hard to get it up to par - but it is not there quite yet so we still see issues like this on occasion :-/

For the best 3D results under Linux always use an Intel or nVidia chipset.

~Jeff

yea i read about that. Yea i thought that was going to be the response i would get.  :)
I do have onboard intel graphics chip but it will not allow me to use dual monitors. :p

ach well!.