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Force second monitor to go black while playing fullscreen game

post #1 of 7
Thread Starter 
Hi all,

I currently have a GTX680 (see sig), running a Shimian 2560x1440 monitor on Dual Link DVI, and a Dell U2311h running 1920x1080 in portrait mode (so 1080x1920) via DVI also.

When I game fullscreen on my main monitor (the Shimian), usually the second monitor is left displaying the desktop with Aero enabled.

Now, I'm not too bothered (I don't think) about this generally, but what I want is for any games I'm running in fullscreen to blank the second monitor (turn it black). Only a few of my games do this (in fact I haven't played one for a while which does this..).

The main reason is that I'm getting performance issues with Shadowplay when my second monitor is enabled, and they go away when I disable it.

I'm not sure if it's a driver issue or other system issue.

All my games are set to 'Fullscreen' in their options.

Does anyone know how I can force 'exclusive' fullscreen so it blanks out the other screen..?

Thanks for any help, it's been bugging me for a while!
My System
(16 items)
 
  
CPUMotherboardGraphicsRAM
i7 5820K @4.4ghz Asus X99-S EVGA GTX680 2GB 32GB Crucial 2133MHz DDR4 
Hard DriveCoolingOSMonitor
120GB Samsung 830 | 120GB Samsung 840 EVO | 6TB... Noctua NH-D14 Windows 8.1 Achieva Shimian 27" 1440p 
MonitorPowerCaseAudio
Dell U2311h (Portrait) Corsair HX520 NZXT Phantom White Asus Xonar D2X -> Samson SR850 or HiFi 
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My System
(16 items)
 
  
CPUMotherboardGraphicsRAM
i7 5820K @4.4ghz Asus X99-S EVGA GTX680 2GB 32GB Crucial 2133MHz DDR4 
Hard DriveCoolingOSMonitor
120GB Samsung 830 | 120GB Samsung 840 EVO | 6TB... Noctua NH-D14 Windows 8.1 Achieva Shimian 27" 1440p 
MonitorPowerCaseAudio
Dell U2311h (Portrait) Corsair HX520 NZXT Phantom White Asus Xonar D2X -> Samson SR850 or HiFi 
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post #2 of 7
I realize that this isn't the answer you are looking for, but if you simply power off the 2nd monitor, it effectively disables the port, as it's plug and play, and windows no longer sees the device.

I'm sorry, I don't know of another way - maybe someone else will know. smile.gif
post #3 of 7
Thread Starter 
Quote:
Originally Posted by dougb62 View Post

I realize that this isn't the answer you are looking for, but if you simply power off the 2nd monitor, it effectively disables the port, as it's plug and play, and windows no longer sees the device.

I'm sorry, I don't know of another way - maybe someone else will know. smile.gif

Thanks for your reply, however that's not what I've found. If I turn off the 2nd monitor using its power button, it doesn't make a difference, as the GPU is still doing everything the same as if the monitor was on.

So, I can still move my mouse onto the second monitor and drag windows over there to the blank screen. If I turn the monitor back on, there's no change in my system as it 're-enables' the 2nd monitor, it basically just is turning the screen off and on (no plug and play aspect to it)
My System
(16 items)
 
  
CPUMotherboardGraphicsRAM
i7 5820K @4.4ghz Asus X99-S EVGA GTX680 2GB 32GB Crucial 2133MHz DDR4 
Hard DriveCoolingOSMonitor
120GB Samsung 830 | 120GB Samsung 840 EVO | 6TB... Noctua NH-D14 Windows 8.1 Achieva Shimian 27" 1440p 
MonitorPowerCaseAudio
Dell U2311h (Portrait) Corsair HX520 NZXT Phantom White Asus Xonar D2X -> Samson SR850 or HiFi 
  hide details  
Reply
My System
(16 items)
 
  
CPUMotherboardGraphicsRAM
i7 5820K @4.4ghz Asus X99-S EVGA GTX680 2GB 32GB Crucial 2133MHz DDR4 
Hard DriveCoolingOSMonitor
120GB Samsung 830 | 120GB Samsung 840 EVO | 6TB... Noctua NH-D14 Windows 8.1 Achieva Shimian 27" 1440p 
MonitorPowerCaseAudio
Dell U2311h (Portrait) Corsair HX520 NZXT Phantom White Asus Xonar D2X -> Samson SR850 or HiFi 
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Reply
post #4 of 7
Sorry about the misinformation. I have 2 Asus monitors connected to my 660 FTW, both DVI, and when I shut off the 2nd monitor via the power button, I hear the windows notification of a device disconnect. And when I check it in the Nvidia control panel, the second monitor is listed, but unchecked and grayed out. I ignorantly assumed this would happen with most monitors.

Again, sorry. Hope someone else can help you with this. I'll check around a bit though, and report back if I find anything. thumb.gif
post #5 of 7
Thread Starter 
Quote:
Originally Posted by dougb62 View Post

Sorry about the misinformation. I have 2 Asus monitors connected to my 660 FTW, both DVI, and when I shut off the 2nd monitor via the power button, I hear the windows notification of a device disconnect. And when I check it in the Nvidia control panel, the second monitor is listed, but unchecked and grayed out. I ignorantly assumed this would happen with most monitors.

Again, sorry. Hope someone else can help you with this. I'll check around a bit though, and report back if I find anything. thumb.gif

No problem, was a good suggestion! Maybe it's my monitor, or something else with my setup, but it doesn't work for me unfortunately. Otherwise would have been a good alternative solution smile.gif

EDIT: Just tried a different DVI cable, and it is now working as you described! So thanks, turns out it was definitely a good suggestion.

However, I'm still hoping there's a way of blanking the second screen (as I know it used to do on more games for me a couple of years ago - not sure what it is I've changed since then, as quite a few things are different). I generally have a load of windows on different monitors, so having to fully disable one means they all move over to the main monitor, which is a pain having to move them all back again afterwards!
Edited by Scorpii - 11/16/13 at 1:56pm
My System
(16 items)
 
  
CPUMotherboardGraphicsRAM
i7 5820K @4.4ghz Asus X99-S EVGA GTX680 2GB 32GB Crucial 2133MHz DDR4 
Hard DriveCoolingOSMonitor
120GB Samsung 830 | 120GB Samsung 840 EVO | 6TB... Noctua NH-D14 Windows 8.1 Achieva Shimian 27" 1440p 
MonitorPowerCaseAudio
Dell U2311h (Portrait) Corsair HX520 NZXT Phantom White Asus Xonar D2X -> Samson SR850 or HiFi 
  hide details  
Reply
My System
(16 items)
 
  
CPUMotherboardGraphicsRAM
i7 5820K @4.4ghz Asus X99-S EVGA GTX680 2GB 32GB Crucial 2133MHz DDR4 
Hard DriveCoolingOSMonitor
120GB Samsung 830 | 120GB Samsung 840 EVO | 6TB... Noctua NH-D14 Windows 8.1 Achieva Shimian 27" 1440p 
MonitorPowerCaseAudio
Dell U2311h (Portrait) Corsair HX520 NZXT Phantom White Asus Xonar D2X -> Samson SR850 or HiFi 
  hide details  
Reply
post #6 of 7
Quote:
Originally Posted by Scorpii View Post

However, I'm still hoping there's a way of blanking the second screen (as I know it used to do on more games for me a couple of years ago - not sure what it is I've changed since then, as quite a few things are different). I generally have a load of windows on different monitors, so having to fully disable one means they all move over to the main monitor, which is a pain having to move them all back again afterwards!

Yeah - I understand that! I only have one game that does what you describe, but I'm not even sure which one it is. Tomb Raider, I think.

Anyhow - still checking around a bit.
post #7 of 7
Thread Starter 
Although, now I have changed cables I do get the 'plug and play' connect/disconnect sound when I turn the monitor on and off, but it doesn't actually change anything on my desktop. Just turns my screen off, but from the system point of view, it's still displaying the second monitor content rather than blanking it.

So doesn't actually make any difference unfortunately..
My System
(16 items)
 
  
CPUMotherboardGraphicsRAM
i7 5820K @4.4ghz Asus X99-S EVGA GTX680 2GB 32GB Crucial 2133MHz DDR4 
Hard DriveCoolingOSMonitor
120GB Samsung 830 | 120GB Samsung 840 EVO | 6TB... Noctua NH-D14 Windows 8.1 Achieva Shimian 27" 1440p 
MonitorPowerCaseAudio
Dell U2311h (Portrait) Corsair HX520 NZXT Phantom White Asus Xonar D2X -> Samson SR850 or HiFi 
  hide details  
Reply
My System
(16 items)
 
  
CPUMotherboardGraphicsRAM
i7 5820K @4.4ghz Asus X99-S EVGA GTX680 2GB 32GB Crucial 2133MHz DDR4 
Hard DriveCoolingOSMonitor
120GB Samsung 830 | 120GB Samsung 840 EVO | 6TB... Noctua NH-D14 Windows 8.1 Achieva Shimian 27" 1440p 
MonitorPowerCaseAudio
Dell U2311h (Portrait) Corsair HX520 NZXT Phantom White Asus Xonar D2X -> Samson SR850 or HiFi 
  hide details  
Reply
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