Overclock.net › Forums › Graphics Cards › AMD/ATI › 6870 Not Detecting Second Monitor?
New Posts  All Forums:Forum Nav:

6870 Not Detecting Second Monitor?

post #1 of 27
Thread Starter 
Just got my new 6870 all set up.

Drivers installed directly from AMD website.

My 1st monitor is working perfectly, but my second monitor has'nt got any output at all.

These monitors are about 3 months old and worked perfectly on my 5770 9 hours ago.

Ive been into the ATI control panel and asked it to try and detect the monitors from inside there but still not finding the second monitor

Windows resolution util does'nt find it either.. there both on the DVI Ports.

Any help would be greatly appreciated.

Thanks!
| Current |
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core2Duo E7400 2.80Ghz @ 3.60Ghz MSI P43T-C51 SKT775 ATI Radeon Sapphire 6870 Corsair XMS2 Extreme 8GB @1067 
Hard DriveOptical DriveOSMonitor
Seagate Barracuda 1TB 7200Rpm Prim Samsung DVD-RW OP Win7Pro64 ASUS VH222D Eyefinity 
KeyboardPowerCaseMouse
Razer Lycosa Gaming Keyboard Corsair ATX650W Coolermaster Elite 330 @16° Razer Copperhead 2000DPI 
Mouse Pad
Razer Exact-Mat 
  hide details  
Reply
| Current |
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core2Duo E7400 2.80Ghz @ 3.60Ghz MSI P43T-C51 SKT775 ATI Radeon Sapphire 6870 Corsair XMS2 Extreme 8GB @1067 
Hard DriveOptical DriveOSMonitor
Seagate Barracuda 1TB 7200Rpm Prim Samsung DVD-RW OP Win7Pro64 ASUS VH222D Eyefinity 
KeyboardPowerCaseMouse
Razer Lycosa Gaming Keyboard Corsair ATX650W Coolermaster Elite 330 @16° Razer Copperhead 2000DPI 
Mouse Pad
Razer Exact-Mat 
  hide details  
Reply
post #2 of 27
try using the HDMI or VGA port?

right click desktop -> display or screen resolution -> detect and identify. idk what windows you're on or anything though.
The mothership
(23 items)
 
  
CPUMotherboardGraphicsGraphics
Phenom X6 1090T Crosshair V Gigabyte GV-N670OC-2GD Gigabyte GV-N670OC-2GD 
RAMHard DriveHard DriveHard Drive
8gb of some junk  KINGSTON SH103S3120G KINGSTON SH103S3120G ST3000DM 
Optical DriveCoolingCoolingCooling
MATSHITA BD UJ240AS H100 2x GT-AP15 2x Corsair SP140 
CoolingOSMonitorKeyboard
2x Fractal Design R2 Silent Series Win7 Asus VG278HE Logitech G710+ 
PowerCaseMouseMouse Pad
Fatal1ty 1000w Fractal Design R4 Logitech G500 Steelseries 
AudioAudioOther
Logitech Z-5500 w/ bookshelfs Mackie Studio USB Cables 
  hide details  
Reply
The mothership
(23 items)
 
  
CPUMotherboardGraphicsGraphics
Phenom X6 1090T Crosshair V Gigabyte GV-N670OC-2GD Gigabyte GV-N670OC-2GD 
RAMHard DriveHard DriveHard Drive
8gb of some junk  KINGSTON SH103S3120G KINGSTON SH103S3120G ST3000DM 
Optical DriveCoolingCoolingCooling
MATSHITA BD UJ240AS H100 2x GT-AP15 2x Corsair SP140 
CoolingOSMonitorKeyboard
2x Fractal Design R2 Silent Series Win7 Asus VG278HE Logitech G710+ 
PowerCaseMouseMouse Pad
Fatal1ty 1000w Fractal Design R4 Logitech G500 Steelseries 
AudioAudioOther
Logitech Z-5500 w/ bookshelfs Mackie Studio USB Cables 
  hide details  
Reply
post #3 of 27
Thread Starter 
My system is below, i don't know if its a faulty port or what but the top DVI port works fine the one below just does'nt even show display output at all (Not even in the BIOS)

I don't get it ?
| Current |
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core2Duo E7400 2.80Ghz @ 3.60Ghz MSI P43T-C51 SKT775 ATI Radeon Sapphire 6870 Corsair XMS2 Extreme 8GB @1067 
Hard DriveOptical DriveOSMonitor
Seagate Barracuda 1TB 7200Rpm Prim Samsung DVD-RW OP Win7Pro64 ASUS VH222D Eyefinity 
KeyboardPowerCaseMouse
Razer Lycosa Gaming Keyboard Corsair ATX650W Coolermaster Elite 330 @16° Razer Copperhead 2000DPI 
Mouse Pad
Razer Exact-Mat 
  hide details  
Reply
| Current |
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core2Duo E7400 2.80Ghz @ 3.60Ghz MSI P43T-C51 SKT775 ATI Radeon Sapphire 6870 Corsair XMS2 Extreme 8GB @1067 
Hard DriveOptical DriveOSMonitor
Seagate Barracuda 1TB 7200Rpm Prim Samsung DVD-RW OP Win7Pro64 ASUS VH222D Eyefinity 
KeyboardPowerCaseMouse
Razer Lycosa Gaming Keyboard Corsair ATX650W Coolermaster Elite 330 @16° Razer Copperhead 2000DPI 
Mouse Pad
Razer Exact-Mat 
  hide details  
Reply
post #4 of 27
I was having a similar issue. I have two with my three monitors connected to the DVI outputs on the two cards. At first I was not getting anything from my second card, so I swapped them around and it came up, so i would suggest try reseating the card to see if that works.
mATX Gaming Rig
(21 items)
 
 
New Custom Case
(3 photos)
CPUMotherboardGraphicsGraphics
3770k Asus Maximus Gene Z77 Sapphire R9 290 Sapphire R9 290 
RAMHard DriveHard DriveHard Drive
Corsair Platinums 4x4 1866Mhz Samsung 840 Samsung 840 Western Digital SSD 
Optical DriveCoolingCoolingCooling
External EK Supreme EK R9 290 WB EK R9 290 WB 
CoolingCoolingOSMonitor
D5 and BP Res Dual Thermochill Triple Rads Old Version Windows 7 x64 Yamakasi 27" 2560 x 1440 
KeyboardPowerCaseMouse
Ideazon Merc SeaSonic Platinum SS-860XP2 860W Microcool Banchetto E-Blue Mazer II AVAGO 
CPUMotherboardGraphicsGraphics
8350 Asus 990fx Sabertooth Diamond hd7970 Diamond HD7970 
RAMHard DriveHard DriveHard Drive
Gskill Ripjaws OCZ Agility 3  2Tb Seagate Sata3 3Tb Western Digital Green Drive 
Optical DriveCoolingCoolingCooling
LG Bluray Burner Swiftech HD Koolance MVR-100 Koolance CHC-125 
CoolingCoolingCoolingOS
Swiftech MC35x2 with dual top Feser Triple 120 Radiator Corsair SP120 Quiet x 3 Windows 7 Ultimate x64 
PowerCase
Corsair AX750 CaseLabs M8 
  hide details  
Reply
mATX Gaming Rig
(21 items)
 
 
New Custom Case
(3 photos)
CPUMotherboardGraphicsGraphics
3770k Asus Maximus Gene Z77 Sapphire R9 290 Sapphire R9 290 
RAMHard DriveHard DriveHard Drive
Corsair Platinums 4x4 1866Mhz Samsung 840 Samsung 840 Western Digital SSD 
Optical DriveCoolingCoolingCooling
External EK Supreme EK R9 290 WB EK R9 290 WB 
CoolingCoolingOSMonitor
D5 and BP Res Dual Thermochill Triple Rads Old Version Windows 7 x64 Yamakasi 27" 2560 x 1440 
KeyboardPowerCaseMouse
Ideazon Merc SeaSonic Platinum SS-860XP2 860W Microcool Banchetto E-Blue Mazer II AVAGO 
CPUMotherboardGraphicsGraphics
8350 Asus 990fx Sabertooth Diamond hd7970 Diamond HD7970 
RAMHard DriveHard DriveHard Drive
Gskill Ripjaws OCZ Agility 3  2Tb Seagate Sata3 3Tb Western Digital Green Drive 
Optical DriveCoolingCoolingCooling
LG Bluray Burner Swiftech HD Koolance MVR-100 Koolance CHC-125 
CoolingCoolingCoolingOS
Swiftech MC35x2 with dual top Feser Triple 120 Radiator Corsair SP120 Quiet x 3 Windows 7 Ultimate x64 
PowerCase
Corsair AX750 CaseLabs M8 
  hide details  
Reply
post #5 of 27
Quote:
Originally Posted by utnorris View Post
I was having a similar issue. I have two with my three monitors connected to the DVI outputs on the two cards. At first I was not getting anything from my second card, so I swapped them around and it came up, so i would suggest try reseating the card to see if that works.
he has only 1 card LOL

he is using the 2 dvi ports from behind the card


OP - that really sounds very odd... because if you don't see the bios screen on both monitors while turning it on.. then it sounds like a faulty dvi slot... but I'd suggest testing another dvi adapter... just incase maybe the one you are using is not working with the card.
SubCow
(13 items)
 
  
CPUMotherboardGraphicsRAM
Phenom ii X4 965BE C3 @ 4.10Ghz (200x20.5) 1.5v MSI 790FX-GD70 Sapphire + XFX 5770's + EVGA 9800GTX+ 8gb (4 x 2gb) DDR3-1333 6-6-6-15-T1 
Hard DriveOptical DriveOSMonitor
1TB Hitachi - 500GB Seagate - 400GB Seagate LG DVD-RW Win 7 Ult x64 / Snow Leo 10.6.6 / Ubuntu 10.10 x64 AOC 2036S 20" + HP vs15 
KeyboardPowerCaseMouse
Agiler Wireless Corsair TX850w Rosewill Challenger - CM590(dead) Agiler Wireless 
  hide details  
Reply
SubCow
(13 items)
 
  
CPUMotherboardGraphicsRAM
Phenom ii X4 965BE C3 @ 4.10Ghz (200x20.5) 1.5v MSI 790FX-GD70 Sapphire + XFX 5770's + EVGA 9800GTX+ 8gb (4 x 2gb) DDR3-1333 6-6-6-15-T1 
Hard DriveOptical DriveOSMonitor
1TB Hitachi - 500GB Seagate - 400GB Seagate LG DVD-RW Win 7 Ult x64 / Snow Leo 10.6.6 / Ubuntu 10.10 x64 AOC 2036S 20" + HP vs15 
KeyboardPowerCaseMouse
Agiler Wireless Corsair TX850w Rosewill Challenger - CM590(dead) Agiler Wireless 
  hide details  
Reply
post #6 of 27
Thread Starter 
I thought it was a faulty DVI slot.
The setup (Cable +DVI connector) on the top DVI slot work perfectly, tried them in the bottom Slot and still nothing.

AMD have said its the slot too.

I orginally brought it from Overclocker UK, and they've said that both use different DVI versions? DVI-I and DVI-D.

Now i don't know what my DVI adapters are! Or why that would make a difference.

Also tried HDMI - VGA cable and im still not getting any output from the second monitor.

The card is 1 day old from Brand new so it should just be working haha
| Current |
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core2Duo E7400 2.80Ghz @ 3.60Ghz MSI P43T-C51 SKT775 ATI Radeon Sapphire 6870 Corsair XMS2 Extreme 8GB @1067 
Hard DriveOptical DriveOSMonitor
Seagate Barracuda 1TB 7200Rpm Prim Samsung DVD-RW OP Win7Pro64 ASUS VH222D Eyefinity 
KeyboardPowerCaseMouse
Razer Lycosa Gaming Keyboard Corsair ATX650W Coolermaster Elite 330 @16° Razer Copperhead 2000DPI 
Mouse Pad
Razer Exact-Mat 
  hide details  
Reply
| Current |
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core2Duo E7400 2.80Ghz @ 3.60Ghz MSI P43T-C51 SKT775 ATI Radeon Sapphire 6870 Corsair XMS2 Extreme 8GB @1067 
Hard DriveOptical DriveOSMonitor
Seagate Barracuda 1TB 7200Rpm Prim Samsung DVD-RW OP Win7Pro64 ASUS VH222D Eyefinity 
KeyboardPowerCaseMouse
Razer Lycosa Gaming Keyboard Corsair ATX650W Coolermaster Elite 330 @16° Razer Copperhead 2000DPI 
Mouse Pad
Razer Exact-Mat 
  hide details  
Reply
post #7 of 27
Greetings,

I'm seeing the same issue as the OP. Here are the facts:

* Mobo: MSI K9N2 SLI Platinum (using the NVIDIA nForce 750a northbridge)

* Video card: SAPPHIRE 100315L Radeon HD 6850

* OS: Windows XP 32-bit SP3 (yes, I know, I know... behind the times)

* Both monitors are (well, were) connecting to the card via VGA (using VGA-to-DVI adapters).

* One monitor has DVI-D. The other does not. However, I don't have any DVI cables lying around. I aim to rectify this via Amazon.com

* Both monitors work on the video card's first connector (the one on the left if you're looking at the back of your case straight on, if the case is on its side, or the one on the top if the case is upright).

* Neither monitor works on the video card's second connector. Also, usually, whenever I plug a monitor in, Windows XP will give me that, "Hey, you just connected something" sound effect. In this scenario, there is NO notification noise when I plug into that second port.

* I replaced two 8800 GTS 512MB's with this card. With the 8800's, my dual-monitor setup worked without a hitch. I had both monitors plugged into the primary card. (Sidenote: If you're looking to "upgrade" to an HD 6-series Radeon, and have an 8800 SLI config going, getting a 6850 won't help you performance-wise. In fact you may get 1% lower benchmarks on WinXP. I knew this going in; I did this strictly to cut down on the power, noise and heat while maintaining a similar level of performance but having the latest hardware revision. That mission is definitely a success, so far.)

* I first installed ATI's Catalyst package containing the Open CL driver (the one marked "Accelerated Parallel Processing (APP) Technology edition). I probably should have just gone for the regular driver. Catalyst Control center did not ever appear upon reboot. Installing the Windows XP hotfix rectified this, and installed all the other stuff I'm used to seeing with an ATI (err, AMD) product. I'm likely going to just wipe out all the drivers and do it the right way to see if that works.

* My Google search turned out this somewhat helpful line in a user's product review for the same 6850 I have: "As an aside, I couldn't get VGA output (for my second monitor) to work on one of the DVI ports. Swapping my main monitor to that port and putting the VGA monitor on the other port fixed that." (This is why I wish I had a damned DVI-D cable in the house.)

So that's where I'm at. OP, if you're connecting both monitors via VGA adapters, maybe that's the issue. If you've got a DVI cable lying around, use the DVI on one and the VGA adapter on the other. Maybe for some funky reason the card can't detect two VGA's at the same time? *shrug* I'm going to try the same. Also I'm going to see if it was my stupidity with the drivers that did me in. I'll report back.
Edited by MrCHUPON - 10/29/10 at 9:36am
post #8 of 27
Thread Starter 
My monitors only offer VGA output.. a pain in the ass i know.

Got nothing to do with drivers mate, as there's no output at all ( not even in the bios )

But in a way its good to see someone else has finally got the same problem as me
| Current |
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core2Duo E7400 2.80Ghz @ 3.60Ghz MSI P43T-C51 SKT775 ATI Radeon Sapphire 6870 Corsair XMS2 Extreme 8GB @1067 
Hard DriveOptical DriveOSMonitor
Seagate Barracuda 1TB 7200Rpm Prim Samsung DVD-RW OP Win7Pro64 ASUS VH222D Eyefinity 
KeyboardPowerCaseMouse
Razer Lycosa Gaming Keyboard Corsair ATX650W Coolermaster Elite 330 @16° Razer Copperhead 2000DPI 
Mouse Pad
Razer Exact-Mat 
  hide details  
Reply
| Current |
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core2Duo E7400 2.80Ghz @ 3.60Ghz MSI P43T-C51 SKT775 ATI Radeon Sapphire 6870 Corsair XMS2 Extreme 8GB @1067 
Hard DriveOptical DriveOSMonitor
Seagate Barracuda 1TB 7200Rpm Prim Samsung DVD-RW OP Win7Pro64 ASUS VH222D Eyefinity 
KeyboardPowerCaseMouse
Razer Lycosa Gaming Keyboard Corsair ATX650W Coolermaster Elite 330 @16° Razer Copperhead 2000DPI 
Mouse Pad
Razer Exact-Mat 
  hide details  
Reply
post #9 of 27
Funny thing, though, is that my second monitor never, ever showed the BIOS when I was running on my SLI config--but I never had issues. Weird!

Anyway I plan on punting an e-mail over to AMD tech support when they finally add the 6-series to its drop-down list. Otherwise I bet they'll just kick the email around and around.
post #10 of 27
Thread Starter 
Ive already tried to contact the AMD Support about it pal,

Results - http://forums.amd.com/game/messagevi...hreadid=141508

The bottom DVI port is'nt faulty as ive had another monitor working on it, With DVI to DVI support.
| Current |
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core2Duo E7400 2.80Ghz @ 3.60Ghz MSI P43T-C51 SKT775 ATI Radeon Sapphire 6870 Corsair XMS2 Extreme 8GB @1067 
Hard DriveOptical DriveOSMonitor
Seagate Barracuda 1TB 7200Rpm Prim Samsung DVD-RW OP Win7Pro64 ASUS VH222D Eyefinity 
KeyboardPowerCaseMouse
Razer Lycosa Gaming Keyboard Corsair ATX650W Coolermaster Elite 330 @16° Razer Copperhead 2000DPI 
Mouse Pad
Razer Exact-Mat 
  hide details  
Reply
| Current |
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core2Duo E7400 2.80Ghz @ 3.60Ghz MSI P43T-C51 SKT775 ATI Radeon Sapphire 6870 Corsair XMS2 Extreme 8GB @1067 
Hard DriveOptical DriveOSMonitor
Seagate Barracuda 1TB 7200Rpm Prim Samsung DVD-RW OP Win7Pro64 ASUS VH222D Eyefinity 
KeyboardPowerCaseMouse
Razer Lycosa Gaming Keyboard Corsair ATX650W Coolermaster Elite 330 @16° Razer Copperhead 2000DPI 
Mouse Pad
Razer Exact-Mat 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: AMD/ATI
Overclock.net › Forums › Graphics Cards › AMD/ATI › 6870 Not Detecting Second Monitor?