ASUS GL502VS (GeForce GTX 1070) + ASUS MG279Q via DisplayPort -- No Signal, solved?

[Radium]

Specs
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Model: ASUS GL502VS
GPU: GeForce GTX 1070
OS: Windows 10 w/ all updates as of 9/29/2016 and Arch Linux USB
Drivers: NVIDIA GeForce 372.90
Monitor: ASUS MG279Q
Cable: Bizlink Mini-DP to DP (supplied with monitor)

Steps to reproduce the issue
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1. Connect laptop and monitor with MiniDP to DP cable.
2. Turn on computer and monitor.
3. No signal -- not even during POST.

Troubleshooting steps completed
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1. Try monitor with another computer (RX480-8G with DP to DP cable) -- monitor works perfect at 1440P@144Hz
2. Try laptop with another monitor (VG248QE with same MiniDP to DP cable) -- cable works perfect at 1080P@144Hz
3. Try Cable Matters Mini DisplayPort to DisplayPort Male to Female adapter with DisplayPort to DisplayPort cable by Cable Matters -- no signal
4. Try connecting laptop while booted to Arch Linux terminal -- no signal

Not quite sure what I should do next... do I need to keep buying cables or is there something inherently wrong with the the laptop and/or monitor?

[iFoxRomeo]

Hi Radium,

I had a similar problem. I have a ACER XB270HU. After connecting the display switched on, then went to standby again. Sometimes I saw a picture, but only for a split second. I checked Nvidia settings, Windows settings. The Display was recognized in the Nvidia settings. After some testing, I had a picture, but only @ 24Hz refresh rate. Refresh rate other than 24Hz -> black screen. I used a multi adapter for mini DP to standard DP/HDMI/DVI. Then I bought a plain mini DP to DP adaper with 4k compatibility. Now my XB270HU works as intended with 2560*1440@144Hz.

Same Laptop, Win10 64bit

[Radium]

Just thought I'd update this post. I had to ship my laptop in for RMA and they replaced the entire motherboard. Works great now. Was a $1300+ part so definitely get this done under warranty if you have the same problem.

[0x542]

Radium wrote:
Just thought I'd update this post. I had to ship my laptop in for RMA and they replaced the entire motherboard. Works great now. Was a $1300+ part so definitely get this done under warranty if you have the same problem.

How long did the RMA take...?

[mike_daruki]

Had the same issue as the OP with the same equipment except for MD to DVI is my cable- no signal from MDP

I bought my unit about 6 months ago and the minidisplay port (MDP) only worked once. I am using a MDP - DVI adapter in conjunction with a third monitor on a HDMI - DVI. The HDMI - DVI has never given me any trouble, but for the life of me I could not get a signal from the MDP. I tried different DVI cables, a MDP to HDMI and tried using it on my new TV thinking my monitor was too old, unplugging the monitor for various duration of time, updating drivers, and even took the PC to Bestbuy to try the geeksquad set of cables/monitors. I went to local computer shop and he stated that the Intel chipset has always struggled driving a MDP port. I'm not a computer engineer - probably the level of advanced tinkerer, but my first response was (isn't the MPD an Intel product to begin with?). Anyway, left that store post-haste.

I need the computer for work so an RMA is a huge obstacle for me but got to thinking of trying a different OS.

Fast forward to yesterday - my hypothesis was to try an Ubuntu USB build, then try a Win 7 USB build after that. (For the lay-person I mean launch a new operating system from one I've installed fresh on a USB thumb drive). Fairly easy to do, there are several links for instructions - available on request. Anyway, the GL502VS has a number of security measures in place on the BIOS to prevent USB boots that must be changed.

Insert your built USB into the PC

In order to boot from USB: First - boot the computer into the BIOS screen by tapping F2 at startup.

Disable secure boot control under the security settings and then enable launch CSM from the boot settings

Restart

Press ESC to bring up the boot menu to choose your USB - in my case it just says SANDISK

My Ubuntu build started and ALL THREE MONITORS WERE FUNCTIONING. Kid you not, I sat here and stared at them for several minutes. Opened a browser -dragged it from one to two to three in total awe. It was as if I split the atom.

After a while I shut down, removed the USB, and then restarted into windows. As I type this back in the native Win 10, I have three functioning monitors - one of which is attached to the MDP with a DVI adapter.

I don't know if the cure was amending the BIOS with the secure boot and CSM or if by running Ubuntu it somehow jostled a driver within the video card - again this type of situation is where my limits have been reached as far as my abilities as a computer engineer. All I know is that the damn thing works at this point and wanted to share with the group.

[gl502vsk]

I am also having this issue. MiniDP doesn't work at all , with any adapter. Can I get more info on what you did? My laptop is out of warranty, as of this summer and stupid me never tested the miniDP until now that I bought a second monitor.

[msymeonides]

My GL502VS started misbehaving, the external monitor (older one connected via VGA to DP adapter) was showing distortion, tried lots of different monitors and adapters and concluded it was the laptop's fault. Did not try booting to Ubuntu, should have.

I sent it in for service (via Squaretrade) and all they did was put on a fresh Windows installation and sent it back, and it was fixed. I had imaged my OS drive before sending it in so I put it back on and the problem came back, so I did a DDU uninstallation of all display drivers I could find, then installed them fresh, and the problem was gone.

So, I would say, if you are having external display issues, first try doing that before sending in for service as you will be without the laptop for many days (mine took 10 days, but again, not ASUS, but I think it would have taken just as long).

[gl502vsk]

msymeonides wrote:
My GL502VS started misbehaving, the external monitor (older one connected via VGA to DP adapter) was showing distortion, tried lots of different monitors and adapters and concluded it was the laptop's fault. Did not try booting to Ubuntu, should have.

I sent it in for service (via Squaretrade) and all they did was put on a fresh Windows installation and sent it back, and it was fixed. I had imaged my OS drive before sending it in so I put it back on and the problem came back, so I did a DDU uninstallation of all display drivers I could find, then installed them fresh, and the problem was gone.

So, I would say, if you are having external display issues, first try doing that before sending in for service as you will be without the laptop for many days (mine took 10 days, but again, not ASUS, but I think it would have taken just as long).

So I tried ubuntu last night. I made a bootable usb, its very snappy on the gl502vsk, BUT, miniDP still dead. Nothing, nada, zip. I am 100% convinced its the hardware. Since Ubuntu boots off the USB, it doesn't touch the hdds. I don't know what's next. I bought this computer in the summer of 2017, and I never bothered to test the miniDP as I just used the HDMI out. Now that I want to drive a third display, I don't know what to do. The computer is brand new. Not a ding, not a scratch, its never left my desk other than to go to the garage to have the dust blown out with a compressor.

I am at a loss, and I am disappointed and sad.