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Good morning teamliquid!
I recently purchased an "avermedia hd gamer C985" capture card.
But whenever I use that hdmi (to DVI) output, the contrast on my main screen becomes super high.
Computer Specs
Processor: Core I5 2500k 3300mhz @ 4900mhz (1,45vcore)
Processor cooling: Corsair H80 watercooling
memory:Corsair Vengeance 8GB Low Profile 1600mhz
Harddisk: SSD Crucial m4 CT128M4SSD2 128GB
Videocards: 2x Sapphire HD6950 Dirt3 edition - Clocked and flashed to 6970 clocks.
Motherboard: ASUS P8Z68-V PRO/GEN3
Capture card: avermedia hd gamer C985
Power supply: XXFX series750W XXX Edition
Keyboard: Qpad MK85 Cherry MX brown switches [Mechanical]
Mouse: Razer Imperator
MousePad: Razer Scarab
Monitors: 2x Dell UltraSharp U2312HM
What the capture card does is:
You use the DVI-out from your videocard to link it to the DVI-IN from your capture card.
You then use the DVI-out from the capture card, to the (DVI -> HDMI) HDMI-in from the monitor.
Scenarios
My second screen is plugged into the video card directly (DVI) and has normal contrast.
- When I plug my main screen directly into the videocard (DVI) -> normal contrast
- When I plug my main screen directly into the videocard (HDMI to DVI) -> normal contrast
- When I plug my main screen into the capture card (HDMI to DVI) -> Super high conrtrast
So by the looks of this, it's the capture card that's giving issues.
What else have I tried?
- Reïnstalling the ATI drivers and CCC
- Resetting all the CCC settings
- Uninstalling the capture card drivers and controll center
- Rebooting
- I also checked both monitor settings, but both have the same brightness (50%) and contrast (75%) settings and are calibrated equally. The sharpness settings are also equal.
Any help would be mucho appreciated!
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After some more testing:
It seems that if I put my second monitor at :
0,75 gamma
1,35 contrast
I receive the game awkward off-colors as my main monitor.
Though my main monitor has 1 gamma and 1 contrast, as it should be.
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United Kingdom20285 Posts
Core I5 2500k 3300mhz @ 4900mhz (1,45vcore)
Thats, uh..
I'm pretty sure 1.45v is very dangerous for sandy bridge
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On April 15 2013 18:00 Cyro wrote:Thats, uh.. I'm pretty sure 1.45v is very dangerous for sandy bridge
Nah it's okay, it's even watercooled and doesn't go above 60° C when linx stressing.
During regular gaming not even >50° C.
An intel representative even said that the maximum 24/7 "Max VID", was maximum "Vcore" allowed vfor 24/7 usage.
There's proof of that, which means that if the chip dies at any voltage below 1,45v, it's in full warranty.
But overall, a lot of people agree that 1,45vcore is okay for 24/7 usage, without degradation of the chip itself.
From 1,55vcore on, the voltage can start crossjumping and your chip can die instantly, I'm a good bit below that.
Above 1,5vcore it's suspected that the chip degrades (at a rapid rate).
I am an experienced overclocker, even used to be in a small group and received engineering samples for testing in the past, so it's ok ^_^ I'm just annoyed at the high contrast at the moment. I managed to tweak the CCC settings a bit to make it more like normal.
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United Kingdom20285 Posts
Ok, it was off topic, but i've heard many reports of sandy degrading at ~1.4v, or even a bit lower on a bad quality board (spiky voltage) people generally stay lower unless its ivybridge
60c is really cool for a h80 with that kind of overclock
Not sure about your issue, why exactly are you running monitor through the capture card? Lack of outputs/inputs or is there some technical reason? I guess i didn't see anybody using two screens and a capture card simultaneously before, it's usually one or the other
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On April 15 2013 18:26 Cyro wrote:
Ok, it was off topic, but i've heard many reports of sandy degrading at ~1.4v.
I'm assuming the temperatures were out of bounds there, then :-)! I wouldn't want to have my 2500k running at >60° C while gaming.
On April 15 2013 18:26 Cyro wrote:
60c is really cool for a h80 with that kind of overclock
Good airflow, 300mm fan to the side, 3x 12mm fans to the front, 2x 12mm fans to the back, and 3x 12mm fans on top.
On April 15 2013 18:26 Cyro wrote:
Not sure about your issue, why exactly are you running monitor through the capture card? Lack of outputs/inputs or is there some technical reason? I guess i didn't see anybody using two screens and a capture card simultaneously before
The idea of the capture card is that, it acts as a "Man in the middle", the output of my graphics card goes to the capture card, and the capture card then re-sends the info back to my main monitor. That way my capture card will always be capturing my main monitor's input, without it having to be sent through other data channels, this way you have the most efficiënt way of capturing a video image.
So GRAPHICS CARD [HDMI]-----> CAPTURE CARD [HDMI-TO-DVI] ----> MONITOR
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HD6950 HDMI OUT -> HD gamer C985 HDMI IN -> HD gamer C985 HDMI OUT -> HDMI to DVI converter -> DVI in of my monitor.
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my 2nd monitor is plugged straight into the videocard.
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I e-mailed avermedia for tech support but after 4 days I still got no word from them.  !
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United Kingdom20285 Posts
Don't know how to help here because i have never seen anybody run dual monitor + capture card (using capture card as man in the middle) nor heard of the issue, sorry.. Maybe someone else can, but we don't have a swarm of active people, if you don't get an answer with this bump you probably won't get one here, im sure dozens of people read the thread but skipped over because they had nothing to add on it or no idea how to help etc.
I would suggest bypassing the issue altogether if you can, like running three GPU outputs, one for screen A, one for screen B and one for capture card. I'm not sure if you can selectively clone one monitor onto another though (A onto capture card "C"), when you are running with two, or the complications of that.. You would probably need to use displayport, or some kind of adapter to get a good third GPU out too.. just a shot in the dark
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I figured it out in the end.
I went to Catalyst Control Center -> My Digital Flat-Panels -> Pixel Format
Then after trial and error I found "RGB 4:4:4 Pixel Format Studio (Limited RGB)" to give corresponding proper colors, compared to my other monitor.
I had to super slightly adjust the monitor brightness/contrast but at least I get proper contrast values now.
Thanks though everyone for the support and I'm just leaving the answer here in case anyone stumbles upon the same problem and find my post.
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EPT
