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X99 taichi dual monitor problem |
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denywinarto 
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Joined: 31 Aug 2017 Status: Offline Points: 20 |
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 Topic: X99 taichi dual monitor problemPosted: 31 Aug 2017 at 5:41pm |
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Hi, i have this setup
X99 taichi Xeon e5-2670 ES Gigabyte RX570 > hdmi to hdmi to viewsonic 2419SH Powercolor RX570 > DVI to hdmi to viewsonic 2407h installed the latest AMD driver version Problem is, i can't figure out how to make dual monitors work Win 10 1703 cant detect additional display. I have enabled all cpu advanced settings but none works.. any idea how to do this?
Edited by denywinarto - 31 Aug 2017 at 5:45pm |
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parsec
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Joined: 04 May 2015 Location: USA Status: Offline Points: 4996 |
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Posted: 31 Aug 2017 at 11:36pm |
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We don't know what you have tried so far, so will go through the standard things. First, are you using CrossFire with the two AMD cards? Or are they running independently? Have you started the Windows Display option from Control Panel? From Display, you click on Change display settings on the upper left. From there you detect and configure multiple displays. The AMD graphics driver's Windows interface should also have multiple monitor configuration settings. Have you tried connecting both monitors to one of the video cards? Do you see entries for both video cards in Device Manager, and are they both working correctly? Are both monitors set to auto-detect the input being used? Did you try setting the inputs manually? The DVI to HDMI cable is connected to a DVI-D output on the video card? You must use a digital DVI output on the video card with a DVI to HDMI cable. Enabling any CPU settings will have no affect on the video display. |
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denywinarto
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Joined: 31 Aug 2017 Status: Offline Points: 20 |
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Posted: 01 Sep 2017 at 2:11am |
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Ok i have tested one by one..
No crossfire yet, they're running independently
http://www.tomshardware.com/forum/id-3390338/display-icon-missing-control-panel-windows-installation.html Im using 1703 and looks like it's removed in this built, i used the new windows 10 settings that is metro-like and i always get "didn't detect another display" when i press detect
Yes both of them have complete specs in crimson menu but there's no option to do multimonitor or something like that The secondary gpu shows linked / discrete though and at x8, the upper one shows primary/master and is x16 Looking at the mobo specs, could this be the cause? "3 x PCI Express 3.0 x16 Slots (PCIE2 @ x16 mode; PCIE4 @ x16 mode; PCIE5 @ x0 mode) (PCIE2 @ x16 mode; PCIE4 @ x8 mode; PCIE5 @ x8 mode)* *If you install CPU with 28 lanes, PCIE2/PCIE4/PCIE5 will run at x16/x0/x8 or x8/x8/x8. Supports NVMe SSD as boot disks. http://ark.intel.com/products/81709/Intel-Xeon-Processor-E5-2670-v3-30M-Cache-2_30-GHz My cpu should be 40 lanes though Now after i did some testing, only the upper GPU that works with monitor and looks like the second GPU isn't giving any display at all! Only the first GPU is working, I'm using first and second PCIE, with the third being used for 10G lancard, 1st pcie = Powercolor 2nd pcie = gygabite 3rd pcie = 10G lancard should i switch them?
Yes both of them shows "this device is working correctly" on display device The monitor part is only showing generic pnp monitor though
Before this i tried with different setup and single GPU, and both monitors were able to auto detect both hdmi and dvi-d, so yes i believe they are already auto input.
Yes of course, it works fine before with previous setup my previous setup uses intel i3 with integrated graphics though btw i used gigabyte rx 570 for my prev setup Edited by denywinarto - 01 Sep 2017 at 2:13am |
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denywinarto
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Posted: 01 Sep 2017 at 8:39am |
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Well i removed the 10G lancard, and both cards are at x16, but it still wont detect second monitor.
Guess x8 or x16 doesnt make a difference
Almost forgot to explain, My goal is to use 9 outputs from both GPUs to multiseat 9 clients, using a program called aster (google aster multiseat for details) |
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denywinarto
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Posted: 01 Sep 2017 at 3:41pm |
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Problem solved, stupid amd driver forcing crossfire without asking user first,
i disabled it and dual monitors are working now
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ASRock_TSD
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Joined: 20 Mar 2015 Status: Offline Points: 8592 |
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Posted: 01 Sep 2017 at 3:44pm |
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Dear Denywinarto,
Thank you for choosing ASRock.
Regarding your case, we have built a system
to test. After installed the AMD graphic card driver, the AMD CrossFireX will
automatically enabled. Please set the AMD CrossFireX to disabled,
then system can work at dual monitors properly.
Thank you! Yours truly, ASRock TSD |
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parsec
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Joined: 04 May 2015 Location: USA Status: Offline Points: 4996 |
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Posted: 01 Sep 2017 at 10:30pm |
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I had a feeling about Crossfire being enabled, which I included in my earlier post. Enabling it automatically is considered a feature, and done for those that want to use it but apparently don't understand it must be enabled. Yet another example of something dumbed-down that has other side affects. Thank you for telling us about how you resolved your issue! |
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denywinarto wrote: