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Three monitors with one computer

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Hello, I already used two monitors with my AGP Radeon 850XT graphic card. This worked pretty fine, also with FS9.Now I tried to create a real surround view with a third monitor. Therefore I bought a PCI graphics card for the third monitor. In order to get windows work on three monitor, I had to made a change in the bios of my motherboard: the PCI card has to start before the AGP card in order to work.Now, I can use three monitors with Windows XP at the same time. But the problem: now FS 9 does not recognise any graphic card any more. Therefore frame rate went down to approx. 2/sec.In other words: if in the Bios AGP card has priority over PCI card, I cannot use three monitors, but FS9 works fine with two. If in the Bios PCI card has priority over AGP card, I can use Windows with three monitors, but FS9 is not working properly any more.Is there anyone, who tried this configuration too, and found an solution?Best regardsArndt

Under display properties on the settings tab, ensure "use this device is used as the primary monitor" is checked for your main AGP display.Gary

9800X3D | 4090 | 64GB | 2+1TB NVME | 2TB SSD | 2TB HDD | 85/50/43” TVs | Quest 3 | DOF H3 Motion Rig | Buttkicker | T.16000M Flight Kit

MSFS @ 4K Ultra DLSS Performance FG 80 FPS |  VR VDXR Godlike 80Hz SSW | MSFS VR DLSS Quality, Ultra Preset - Windows 11

Acer Nitro 5 | i5-11400H | RTX 3060 6 GB | 32GB DDR4 | 15.6" FHD IPS 144Hz | 2 x 512 GB SSD | Windows 11

Hello Gary,my main APG monitor is set as primary monitor! And all three monitors work with Windows XP at the same time (so I can drag windows from one to another, etc.).But FS 9 isn't recognising any monitor/graphics card.Best regardsArndt

Hello,What do you see in FS9.cfg?I have the following (it's not the same type of card...)(DISPLAY.Device.NVIDIA GeForce4 Ti 4600 by TweaksRUs.0)Mode=1280x1024x32Tablefog=0TriLinear=1(DISPLAY.Device.NVIDIA GeForce4 Ti 4600 by TweaksRUs.1)Mode=1280x1024x32PanelAsTexture=0TextureAGP=0(DISPLAY.Device.NVIDIA GeForce FX 5200 by TweaksRUs.2)Mode=1280x1024x32PanelAsTexture=0TextureAGP=0() stands for the open/close brakets.check also when FS9 runs : settings/display/hardware : do you see the 3 cards?I had to "force" the 3rd entry in the FS9.cfg file.Hope it helps.

Emile EBBR Z590 Aorus Elite, i9-11900K 3.5Ghz Nvidia RTX 5070, 32 GB Mem, SSD 3 Tera , 3 monitors Win11 Pro X64 LM P3D V6.1 Little Nav Map Hifisim Nvidia 591.44

Hello,in the FS9.cfg I only have:[DISPLAY.Device.ASUS X850 Series .0]Mode=1280x1024x32RenderToTexture=0[DISPLAY.Device.ASUS X850 Series.0]Mode=1280x1024x32That means, the third monitor/grafics card isn't recognised!Do you also have changed settings in the bios, that the PCI card is started first?Best regardsArndt

Something was lost!Here is the content of my FS9.cfg:(DISPLAY.Device.ASUS X850 Series .0)Mode=1280x1024x32RenderToTexture=0(DISPLAY.Device.ASUS X850 Series.0)Mode=1280x1024x32RegardsArndt

FS9 now gives the message, that hardware-3D-rendering isn't possible and therefore software-3d-rendering is used. Reason: driver of my AGP Radeon 850XT card.But for the Radeon the newest driver is installed.Arndt

Two options to try:1. Disable your PCI card under windows, start FS9, then renable your PCI card.2. After backing it up first, try deleting your FS9.cfg file and have FS9 rebuild it. Gary

9800X3D | 4090 | 64GB | 2+1TB NVME | 2TB SSD | 2TB HDD | 85/50/43” TVs | Quest 3 | DOF H3 Motion Rig | Buttkicker | T.16000M Flight Kit

MSFS @ 4K Ultra DLSS Performance FG 80 FPS |  VR VDXR Godlike 80Hz SSW | MSFS VR DLSS Quality, Ultra Preset - Windows 11

Acer Nitro 5 | i5-11400H | RTX 3060 6 GB | 32GB DDR4 | 15.6" FHD IPS 144Hz | 2 x 512 GB SSD | Windows 11

Hello,From what you show only 2 monitors are visible in FS9, you have to add manually the display entry of the 3rd monitor in your FS9.cfg and save it .

Emile EBBR Z590 Aorus Elite, i9-11900K 3.5Ghz Nvidia RTX 5070, 32 GB Mem, SSD 3 Tera , 3 monitors Win11 Pro X64 LM P3D V6.1 Little Nav Map Hifisim Nvidia 591.44

Gary, Emile,many thanks for your ongoing support.But the problem remains:1. If I check "AGP" in the option "Init Display first" of my Bios:the PCI card and the third monitor are recognised by Win XP (I find them in the Win XP control panel), but the monitor shows the message "no signal" and is not working (neither under Win XP nor under FS9). If I go to "display options" in "control settings", I am getting the message "old driver for a previous version of Windows" (although the driver is the newest version). 2. If I check "PCI" in the option "Init Display first" of my Bios: then, the third monitor is working under Windows, but FS9 is recognising non of the graphic cards. Even if I manually add the graphic cards to the FS9.CFG or force FS9 to rebuild it, nothing happens. There is non of the graphic cards listed in settings/display/hardware.Best regardsArndt

Arndt,if you installed your card, where did you put it? I mean in which slot?I have used your setup for years and with older cards but it has always worked like a charm. I think I remember that you have to put the PCI-card in the last available slot on the motherboard because that slot uses the same IRQ as the AGPslot.And the AGP card need to initialise first in the bioq settings if I'm correct.Good luckLuc 'Glaudrung' Brusselmans

Hello Luc,this might be the explanation.When the Bios is starting the AGP card with priority, then the AGP graphic card has IRQ 16, but PCI card has IRQ 18. Maybe therefore I am getting the message "no signal" from the monitor, which is connected to the PCI card.Unfortunately my mainboard only allows me to change IRQs of PCI slots. And it allows such changes only in the range from 2 to 14. So I cannot change the IRQ of my PCI card to the same as my AGP card.This seems to be bad luck.Best regardsArndt

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