two monitors one them not working

Hi! Can anyone help me solve this problem please?
I have no problem making my two monitors work in Windows XP. However, after I installed Vista, one of the monitors remains black. I have not unplugged anything or in any way changed the connections. The only change to the computer is that Vista has been installed, so I reckon the problem has to do with the driver.
I use a Matrox Millennium G550 graphics card for a dual head (monitor) solution.
Downloading and installing the driver marked as DualHead2Go on this web page did not solve my problem:
http://www.matrox.com/mga/support/drivers/latest/home.cfm
P.S. There are no yellow question marks in the device manager.

Did you go into the display settings, and enable extending your desktop to the second monitor? In almost all cases people need to manually enabled the second monitor somehow.
"kgun" wrote in message

Hi! Can anyone help me solve this problem please?
I have no problem making my two monitors work in Windows XP. However, after I installed Vista, one of the monitors remains black. I have not unplugged anything or in any way changed the connections. The only change to the computer is that Vista has been installed, so I reckon the problem has to do with the driver.
I use a Matrox Millennium G550 graphics card for a dual head (monitor) solution.
Downloading and installing the driver marked as DualHead2Go on this web page did not solve my problem:
http://www.matrox.com/mga/support/drivers/latest/home.cfm
P.S. There are no yellow question marks in the device manager.

Same problem here:
Windows Vista Beta with Asus motherboard P4C800 de luxe and Matrox G550 in AGP.
Matrox G550 running fine on one monitor but second one is not detected. Both are the same ones and run fine under XP.
May be related:
I got an optional update on windows update for the Matrox card (st00%%EN) but it doesn't install. Always fails.
In device manager: When I remove the current Matrox driver and restart back to VGA, it automatically finds a Matrox driver.and says I am up to date.
In Windows update the optional Matrox driver keeps being shown as available update, downloads it again but never installs properly.
1. Did anybody here got the Matrox G550 working in dualmonitor setup? 2. Did anybody got the Windows update/install for the card properly installed? 3. Where doe the DL updates and temp files go now? (in XP they where visiable in the Windowsfolder with $xxxxx) 4. Is there a way to completely clean al related drivers for Matrox, download the update and (manual) force Device manager to use it?



"John" wrote in message

Did you go into the display settings, and enable extending your desktop to the second monitor? In almost all cases people need to manually enabled the second monitor somehow.
"kgun" wrote in message Hi! Can anyone help me solve this problem please?
I have no problem making my two monitors work in Windows XP. However, after I installed Vista, one of the monitors remains black. I have not unplugged anything or in any way changed the connections. The only change to the computer is that Vista has been installed, so I reckon the problem has to do with the driver.
I use a Matrox Millennium G550 graphics card for a dual head (monitor) solution.
Downloading and installing the driver marked as DualHead2Go on this web page did not solve my problem:
http://www.matrox.com/mga/support/drivers/latest/home.cfm
P.S. There are no yellow question marks in the device manager.

Ok found a solution, which means it is possible to use dual monitors with the Matrox G550 card and Vista beta 2
After a few times trying to install the windows update Matrox driver (failed everytime) I set the display driver back to VGA, without restarting. Then again I choose ":update driver manually" in the device driver and found more than one driver available on the computer. Apperently the windows update placed the right files somewhere but could not install properly. So I choose the Matrox G550 Series driver (instead of the Matrox G550 Millinium as before) and restarted After rebooting an little PDESK icon appeared in the tray and there I could enable the second monitor.
Works like a charm now! Hope other people can use this solution too.
reg. Bastiaan

I've had no luck at all with my ancient Matrox Dualhead G440. Every driver I downloaded crashed at booup. No sign of PDESK anwhere here. Did you already have PDESK installed because you upgraded, or did you install it yourself?
"Bastiaan Houtkooper" wrote in message

Ok found a solution, which means it is possible to use dual monitors with the Matrox G550 card and Vista beta 2
After a few times trying to install the windows update Matrox driver (failed everytime) I set the display driver back to VGA, without restarting. Then again I choose ":update driver manually" in the device driver and found more than one driver available on the computer. Apperently the windows update placed the right files somewhere but could not install properly. So I choose the Matrox G550 Series driver (instead of the Matrox G550 Millinium as before) and restarted After rebooting an little PDESK icon appeared in the tray and there I could enable the second monitor.
Works like a charm now! Hope other people can use this solution too.
reg. Bastiaan

It installed with the Vista drivers I think. It is clearly different from the old XP version.
reg. Bastiaan
"Alan Simpson" wrote in message

I've had no luck at all with my ancient Matrox Dualhead G440. Every driver I downloaded crashed at booup. No sign of PDESK anwhere here. Did you already have PDESK installed because you upgraded, or did you install it yourself?
"Bastiaan Houtkooper" wrote in message Ok found a solution, which means it is possible to use dual monitors with the Matrox G550 card and Vista beta 2
After a few times trying to install the windows update Matrox driver (failed everytime) I set the display driver back to VGA, without restarting. Then again I choose ":update driver manually" in the device driver and found more than one driver available on the computer. Apperently the windows update placed the right files somewhere but could not install properly. So I choose the Matrox G550 Series driver (instead of the Matrox G550 Millinium as before) and restarted After rebooting an little PDESK icon appeared in the tray and there I could enable the second monitor.
Works like a charm now! Hope other people can use this solution too.
reg. Bastiaan

When I installed Vista I had a 2nd monitor hooked up to my laptop and when it installed it was only using the 2nd monitor. I went to control panel/display settings and tried to make the laptop screen the primary monitor but it would not allow me too. I had to download the driver and install again and it came up with an error message. I shutdown my computer and when it started there in the task bar was the graphics accelerator icon. Seems to be working fine so far. I believe you need to have graphics cards that are the same format. Hope this helps. If I were to do it again would definitely have unplugged 2nd monitor before upgrade. "kgun" wrote:

Hi! Can anyone help me solve this problem please?
I have no problem making my two monitors work in Windows XP. However, after I installed Vista, one of the monitors remains black. I have not unplugged anything or in any way changed the connections. The only change to the computer is that Vista has been installed, so I reckon the problem has to do with the driver.
I use a Matrox Millennium G550 graphics card for a dual head (monitor) solution.
Downloading and installing the driver marked as DualHead2Go on this web page did not solve my problem:
http://www.matrox.com/mga/support/drivers/latest/home.cfm
P.S. There are no yellow question marks in the device manager.

Hi! Can anyone help me solve this problem please?
I have no problem making my two monitors work in Windows XP. However, after I installed Vista, one of the monitors remains black. I have not unplugged anything or in any way changed the connections. The only change to the computer is that Vista has been installed, so I reckon the problem has to do with the driver.

Unhook the monitor that remains black. All the monitors on your system will them be working. Problem solved!

What do you mean with "unhook"? Disconnect and reconnect? Sorry, but it's my English.
Thanks Linus
"Roscoe" schrieb im Newsbeitrag | | Unhook the monitor that remains black. All the monitors on your system will | them be working. Problem solved! |

On Sat, 20 Jan 2007 12:00:06 +0100, " Linus Schroeder" wrote:

What do you mean with "unhook"? Disconnect and reconnect? Sorry, but it's my English.
Thanks Linus Yes!

The opposite is: "Hook up" your new equipment.

"Roscoe" schrieb im Newsbeitrag | | Unhook the monitor that remains black. All the monitors on your system will | them be working. Problem solved! |

Two monitors - One of them not working
Hi! Can anyone help me solve this problem please?
I have no problem making my two monitors work in Windows XP. However, after I installed Vista, one of the monitors remains black. I have not unplugged anything or in any way changed the connections. The only change to the computer is that Vista has been installed, so I reckon the problem has to do with the driver.
I use a Matrox Millennium G550 graphics card for a dual head (monitor) solution.
Downloading and installing the driver marked as DualHead2Go on this web page did not solve my problem:
http://www.matrox.com/mga/support/drivers/latest/home.cfm
P.S. There are no yellow question marks in the device manager.