External monitors often going off and on

[Turrcain]

I have to say, I changed my cable this morning & have not experienced the blinking issue since then, either. So, that's 6hrs & it would have occurred by now.

So, I'm now using two DP cables instead of one DP & one HDMI. It'll be interesting to see what my personal laptop does because that did not have the issue, even with DP & HDMI. We shall see!................

[ken3333333]

@Jax38

We bought C2G cables. 

[Turrcain]

To clarify, I'm pretty sure my DP cables are the ones that came with the two E233 monitors I have. Could be wrong coz I have so many cables knocking about lol !!

[teemstro]

Also for me, with the g5 dock I was using straight DP to DP cables and with the g2, I'm using hdmi to hdmi. No adapters or generic junk here. 

[Jax38]

Thank you for the information. From my HP monitor, I'm using HDMI (cable on both sides) and converting to DP into the G5. Are you recommending - a C2G DisplayPort M to HDMI M Adapter Cable? It could be the dongle converting from HDMI to DP that is causing the problem. 

Thanks for helping us to triage!

[Jax38]

Good to know; please keep us posted on the results. I'm now thinking of buying these C2G Lenovo cables.

[Jax38]

Unfortunately, the back of the monitor only has HDMI out and no DP option.  DP to DP - which means new monitors - urggg. Thanks again, I needed to clarify my setup to confirm the solution before buying C2G Display Cable 

[FrankOtheMt]

On Friday, after changing the cables to DP:DP, DP:DP, and HDMI:HDMI using the dock, the HDMI monitor blinked once over the course of the day (for 1-2 seconds).

I replaced the HDMI cable with a new shorter one, and no blinks after that.

Have to see how it goes on Monday. Definitely was a lot less after doing the DP:DP cables instead of DP:HDMI. Before that, it was every half hour.

We have a bunch of new docks that did not get a firmware update. If I get any blinks on Monday, I will swap out with a new one. I didn't have this problem until I updated the firmware, and then started changing things around/experimenting with 5 displays. Also wondering if the order the monitors are plugged in matters. How they get enumerated in Windows. I know it shouldn't matter, just trying to find a workaround or solution.

Will post back.

[FrankOtheMt]

I think that converting DP to HDMI may be a big part of the problem.

[Jax38]

HI all,

I've been doing testing and was so hopeful that the switching the cables would do the trick. It didn't.

Direct HDMI to HDMI - failed the monitor blinked (3 minutes in)

Direct HDMI to DP Port (no dongle) - new cable - waiting for results.

The G5 Dock only has ONE HDMI not two.

Is anyone else running into the same situation where the monitor only supports HDMI out?

Dare I say, i need new monitors just to make this work with the G5? 

Keep the ideas flow and thank you community!