Attention: Help needed.. AMD & Displayport users..

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Vladdo

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Joined
Apr 24, 2012
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The ongoing saga of my Asus 7970 & 3x Samsung S27A950 might finally be resolved, but I need your help.

Basically, I'd get an 'not optimised image' dropout on my displayport connection, so I'd have to turn the monitor off and on to fix it. In any one 5 hour session, I'd get 3-5 dropouts, so as you can imagine, it has been driving me batshit for the last year..

Anyway, if you have an AMD card and a displayport monitor and have dropouts, can you go into the control panel, administrative services, services, and disable the "AMD External Events Utility" service.

Then post up here on if it has fixed the issue or not. In light of recent memory optimization fixes, I'm sure that if this another AMD bug then it will be quite a damning state of affairs for the driver team.
 
I have that same monitor and get that message as well. Using 13.1 Catalyst Drivers ATM.
I only get it in the windows environment when turning on the monitor or waking it up from sleep.
It doesn't happen again during use, only when initially turned on.

Does your monitor go black after a few seconds after turning it on? I get that from time to time.

Also, do you get a USB device just plugged-in sound when powering on your monitors?
I have read that when turning off displayport monitors, it's treated as if it was unplugged,
and when powering on, windows re-detects it as if it's a new device. Get that as well.

I'll disable the service and report back if anything changes for the better.
 
Yes, yes and yes..

Pretty much everything you described.. It'll behave itself for hours once it's passed the initial 5 mins of warming up.. or if I change resolution, it might display the error as well.. and yes, the most annoying thing is that when switching on/off, it disables, then re-enables the device, meaning that if you're in eyefinity, it'll crash the game etc.. extremely frustrating..

Anyway, let me know how you go, as I'm very interested if it indeeds fixes the issue..
 
I like Burpy don’t have any random dropouts with my two displayport displays but with the last few driver revisions I can’t safely turn them off. When I turn them back on after a time, I get a screen full of artifacts or a blue screen with an error having to do with ATI????.sys.
I do not get the USB device sound though.
What driver are you using? You may want to try some of the older ones.
 
Tanquen said:
I like Burpy don’t have any random dropouts with my two displayport displays but with the last few driver revisions I can’t safely turn them off. When I turn them back on after a time, I get a screen full of artifacts or a blue screen with an error having to do with ATI????.sys.
I do not get the USB device sound though.
What driver are you using? You may want to try some of the older ones.
Click to expand...

I think you've got a borked card or drivers.. You may need to reformat/reinstall..

There is a very specific issue with these AMD cards and samsung displayport monitors.. I'm hoping I've found a very specific bug which would only apply a very small number of users.. at least then I can go to AMD and ram their crap drivers where the sun doesn't shine..

I was laying the blame all on samsungs shoulders.. I've had numerous conversations with their techs, all to no avail.. so hopefully can throw it back at AMD..
 
Well i have similar issues, but I'm using DP->DL-DVI adapters that are tied to my monitors usb hub. If I turn off my monitors, the adapters also turn off. I get random corruption on the screens, signal drop out, and crashes when I need to power cycle the adapters. All very random.
 
I just don't allow my PC to go to sleep or turn the monitor off. Either of those on means that I have to hard reset my PC to get the monitor to come back up. I don't know if it's the Samsung or AMD's drivers, but it sure was annoying!
 
Craz said:
Check your displayport cables when I was troubleshooting the x79 system hang awhile back I found my cables were not compliant with VESA standards. I used to get displayport link failure messages all the time. Here is some info from my post i made on another website:

If you read the VESA Displayport standard it states.
Here on page 147

3.2.2 DP_PWR Wire

A standard DisplayPort cable must have no wire for the DP_PWR pin.
Only captive cables supplied with cable powered Branch Devices or cables permanently attached to Sink
Devices are permitted to have the wire for DP_PWR. These captive/attached cables must have a standard
DisplayPort plug connector (as specified in Section 4.2.1) on one end only. The other end must either be
permanently attached or have a custom connector.

If you look at the pin out for a DP cable.

Pin out

External connector (source-side) on PCB
Pin 1 ML_Lane 0 (p) Lane 0 (positive)
Pin 2 GND Ground
Pin 3 ML_Lane 0 (n) Lane 0 (negative)
Pin 4 ML_Lane 1 (p) Lane 1 (positive)
Pin 5 GND Ground
Pin 6 ML_Lane 1 (n) Lane 1 (negative)
Pin 7 ML_Lane 2 (p) Lane 2 (positive)
Pin 8 GND Ground
Pin 9 ML_Lane 2 (n) Lane 2 (negative)
Pin 10 ML_Lane 3 (p) Lane 3 (positive)
Pin 11 GND Ground
Pin 12 ML_Lane 3 (n) Lane 3 (negative)
Pin 13 CONFIG1 connected to Ground1)
Pin 14 CONFIG2 connected to Ground1)
Pin 15 AUX CH (p) Auxiliary Channel (positive)
Pin 16 GND Ground
Pin 17 AUX CH (n) Auxiliary Channel (negative)
Pin 18 Hot Plug Hot Plug Detect
Pin 19 Return Return for Power
Pin 20 DP_PWR Power for connector (3.3 V 500 mA)

On a standard Displayport cable being used to hook up monitor to video card.
Pin 20 DP_PWR Power should not be connected. It is back feeding 3.3v back into the video card causing all kinds of issues. A lot of company are pushing out products that are not following the correct VESA Displayport Standards.

I tested this by removing my video card and connecting Displayport cables. These are Monster Digital Life cable.

314e66adimg0240.jpg


Measured here from negative lead on meter to screw on back of card.

d843c448image1.jpg


And Reading 3.3v on video card. (MSI 7970 reference card)

ecc694abimg0241.jpg


The cables I found to be compliant are Belkin Displayport Male to Displayport Male. I did away with using the Mini-DP to DP cables and am using the Mini-DP to DP female dongle that was included with my MSI reference 7970's.

Here is a link to the compliant cables.
http://www.amazon.com/gp/aw/cr/B0017U61M8/ref=aw_d_cr_electronics

I tested monster displayport cables and some cheap startech cables. Both were non compliant pin 20 was connected back feeding 3.3v. Belkin is the brand of cable I am using now. I havent had a displaylink failure since switching to the belkin compliant cables.

Anyways, I hope someone finds this info usefull..
Click to expand...
http://www.rage3d.com/board/showpost.php?p=1337147463&postcount=82
 
As an Amazon Associate, HardForum may earn from qualifying purchases.
risqu3 said:
Nope.

Doesnt work. Turning my displayport monitor off, caused my resolutions to change.

I've done a lot of reading on this subject, and its just how DisplayPort detects displays.

it has an "ACTIVE" connection to the monitor and gpu, and stops it if its powered off.

Only VGA/DVI can be powered off and have their displays kept intact.

http://www.i-py.com/2011/12/stupid-displayport-behavior-in-windows-7/

http://social.technet.microsoft.com...l/thread/8a9b5aa7-fe33-4e6d-b39b-8ac80a21fdc2
Click to expand...

Nope, that is the driver. Displayport and DVI can get some info from the display and the PC can put them in low power mode and such. It’s not just a Windows 7 thing either. I’ve been struggling with this for many years now. My last set of displays were DVI only and it did the same thing. When I turn off the LCDs or use the TV it moves everything all over the place and don’t put it back. I hate it. I know the idea is that you should be using Windows power settings to turn off your displays but some of us just like to turn them off when done. The TV is another pain as the driver will sometimes set one of the screens to 1080 res when you turn on the TV and then I’ll use a preset to put everything back but the damage has been done to my windows. Sometime it will even toggle everything again when I turn the TV off. Why? Just leave it be.

I guess they think that as soon as you power off a display you need to see everything on the one that is left because that is all you have to see with. It could help you out if a display die and you can no longer see what is on that screen but how often is that going to happen. When I setup up my desktops, spanned or cloned or whatever res I want there should be a setting to tell windows and or the driver not to change it on its own.
 
I still get dropouts when initially powering on my display.

I am using a mini-displayport to displayport cable.
Final8ty post looks interesting and I might try that eventually.
 
I had a similar issue with my Samsung S27A950D only if I set the computer to turn off the display after certain period of inactivity. I don't know if its related to AMD Zerocore, driver issues or whatever it is. Im using the DVI-D connector.
 
I had this issue with my 6950s I had back in the day on my displayport connections and after switching to nvidia I now realize how much I dont miss this. I will avoid display port at all costs until these issues are completely ironed out. Triple DVI FTW.
 
Update since my last post,

I have "AMD External Events Utility" service set to manual (disabled before that),
and have not had a dropout or error message since.

This could be a temp delay and it might start happening again, but for now it's good.

I still get the new device connected sound when powering on, or coming out of sleep.
 
Wouldn't you know it, I just experienced my first dropout in a week.
I guess my post stating it was fixed, jinxed it. :)
 
Interesting read here at Rage3D.

Oh, and please don't buy the Belkin cable from Amazon that is posted above, it does not solve the issue.

In the Rage3D thread, this Accell cable is said to be the right one. I haven't tried it myself tho.
 
Hi,

I once had that problem. The monitor would get rejected and drop out. I found that another brand display port active adapter did the trick. Funny thing AMD had sent me that broken adapter to troubleshoot another issue I had regarding flickering. Anyhow out of the three mini dp adapters I have that one just doesn't work. Behaves much like how you described!
 
Vladdo said:
The ongoing saga of my Asus 7970 & 3x Samsung S27A950 might finally be resolved, but I need your help.

Basically, I'd get an 'not optimised image' dropout on my displayport connection, so I'd have to turn the monitor off and on to fix it. In any one 5 hour session, I'd get 3-5 dropouts, so as you can imagine, it has been driving me batshit for the last year..

Anyway, if you have an AMD card and a displayport monitor and have dropouts, can you go into the control panel, administrative services, services, and disable the "AMD External Events Utility" service.

Then post up here on if it has fixed the issue or not. In light of recent memory optimization fixes, I'm sure that if this another AMD bug then it will be quite a damning state of affairs for the driver team.
Click to expand...

I have the same issue in Linux with OSS driver. Any advice? I have 3 native Displayport monitors & a FirePro 2460 multi-view
 
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