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Strange displayport behavior
https://www.fit-pc.com/forum/viewtopic.php?f=97&t=4689
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Author:  girotel [ Thu Jan 03, 2013 3:12 pm ]
Post subject:  Strange displayport behavior

Hello,

I have the following strange displayport behavior ?

Did the following.

Only one pc is attached to the monitor and that is the displayport.

Restart the PC.

Go inside the motherboard bios, it dont matter stay in bios boot/configuration screen.

Turn off the monitor for 30 sec

Start the monitor again

The screen stays blanc no display nothing.

Disconnected the displayport cable.

Connected the displayport cable.

The screen stays blanc no display nothing.

Turned the monitor power off.

Turned the monitor power on.

The screen stays blanc no display nothing.

Turned the computer off.

Turned the computer on.

The screen works again.

When I follow the same test procedure on the hdmi port these issues do not occur.

Is this problem displayport, displayport-cable, bios, (driver) or display related ?

This issue also occurs inside a running windows 7 for some reason the displayport looses connection "OSD message on monitor about resolution not optimal" and the screen stays off; removing the displayport cable an attaching it again fixes this.

PC info:

Mainboard : CompuLab Ltd. Intense-PC
Chipset : Intel Ivy Bridge
Processor : Intel Core i7-3517UE @ 1700 MHz
Physical Memory : 16384 MB (2 x 8192 DDR3-SDRAM )
Video Card : Intel(R) HD Graphics 4000
Hard Disk : OCZ-VERTEX4 (512GB)
Monitor Type : Samsung S27A950D - 27 inches
Network Card : Intel 82579LM Gigabit Network Connection
Network Card : Realtek Semiconductor RTL8188CE 802.11b/g/n WiFi Adapter
Network Card : Realtek Semiconductor RTL8168/8111 PCIe Gigabit Ethernet Adapter
Operating System : Windows 7 Ultimate (64-bit)

With kind regard,

Girotel

Author:  girotel [ Wed Feb 13, 2013 9:22 am ]
Post subject:  Re: Strange displayport behavior

Hello,

This unit in not performing as it should, this is not normal while the os is running the display disappears and the only way to fix it is to detach and attach the displayport cable.

Is there a way to fix this ?

If not i will return the unit and ask a refund.

With kind regards,

Girotel

Author:  gabrielh [ Thu Feb 14, 2013 12:20 pm ]
Post subject:  Re: Strange displayport behavior

Dear Girotel

Please accept my sincere apologies for the late answer

I were unable to confirm your issue at our site. Please try the following steps.

1. Try another DP monitor.
2. Try to replace the DP cable with with a more quality cable

If the above steps fail to resolve your issue please consider to RMA your IntensePC

I am sorry for any inconveniance

Author:  girotel [ Thu Feb 14, 2013 7:23 pm ]
Post subject:  Re: Strange displayport behavior

Hello,

Thanks for a reply.

Cable is DP 1.2 certified.
Monitor display is just fine.

Will check with other DP monitor an cable shortly.

But i find it stange because pc boots to windows an windows is running normally, my monitor and cable all of a sudden should malfunction and change the resolution so my monitor could not display it anymore. This does not seem plausible.

With kind regards,

Girotel

Author:  gabrielh [ Sat Feb 16, 2013 6:01 pm ]
Post subject:  Re: Strange displayport behavior

Dear Girotel

Just one more question, do you use the Compulab's video driver, or the third party one?

Author:  slavazh [ Thu Mar 20, 2014 8:52 am ]
Post subject:  Re: Strange displayport behavior

I have the same issue both with Intel's and Compulab's video drivers under win 8.1 64 and Dell u2410 display. I think it happens due to overheat.

Author:  mbirger [ Wed Mar 26, 2014 11:47 am ]
Post subject:  Re: Strange displayport behavior

Please describe the exact behavior.

Author:  oh1mts [ Sun Nov 30, 2014 3:46 pm ]
Post subject:  Re: Strange displayport behavior

Hello, I have IPC2-C4600-WACB-FMUSB3 16Gb ram W7/64, when rebooting my PC I get only Intel logos and everything freezes. This is only when I have Samsung U28D590D connected, disconnecting display on reboot and reconnecting the display it works OK. Changing drivers original and Samsung same result. Wen using older display with HDMI/VGA adapter PC works fine.

Author:  mbirger [ Thu Dec 18, 2014 8:53 am ]
Post subject:  Re: Strange displayport behavior

Please update the BIOS:
http://www.fit-pc.com/wiki/index.php/IPC2_BIOS_Update

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