topic Re: mac screen flicker/blinking in Installation & update

mac screen flicker/blinking

John Weaver — Thu, 08 Jan 2015 15:27:21 GMT

This has been covered on older versions of software and seen fixes mostly for windows, but, after upgrading my iMac 27" 3.2 ghz core i5 with NVIDIA GeForce GTX 675M 1024 MB graphics card to Yosemite and using AC v18, my screen will start to flicker or blink when I am doing simple tasks like zooming in or even moving elements. Anyone know how to fix this

Re: mac screen flicker/blinking

Eduardo Rolon — Thu, 08 Jan 2015 16:03:51 GMT

This is happening to me too on AC18.

nVidia Quadro FX 4800

Re: mac screen flicker/blinking

Anonymous — Thu, 08 Jan 2015 21:37:28 GMT

Also happening on AC14 on Yosemite

Re: mac screen flicker/blinking

NCornia — Fri, 09 Jan 2015 01:14:59 GMT

Gentleman,

We have started to get more reports of this but we are still gathering information about the issue. Can you please explain:

- Does the flickering happen for the entire view window? (floorpans, elevations, etc.)
- Or does the flickering only happen in specific windows such as a render window?
- How often does the flickering occur? (Constant, Intermittent,etc.)
- Does the flickering start when the program starts? Or does it appear after a period of time?
- Are there any applications running in the background when the flickering happens? (Perhaps Safari with a page running Flash animations).

Any specifics you can give us will help us determine the cause of the problem.

Thanks in advance.

Best regards,

Re: mac screen flicker/blinking

Eduardo Rolon — Fri, 09 Jan 2015 12:43:47 GMT

The flickering in my case is usually the render window. Both during rendering and after finishing and with 2 AC sessions running at the time.

Re: mac screen flicker/blinking

NCornia — Fri, 09 Jan 2015 14:53:25 GMT

Eduardo,

Thank you for the reply. That is what I have noticed is the trend as well. If any others have more detail on their experience please post it here.

Best regards,

Re: mac screen flicker/blinking

John Weaver — Fri, 09 Jan 2015 15:00:39 GMT

In my case it happens in plan view and happens intermittently, usually after I have been working on a file for a while. I have tried quitting safari when this is happening. I have also wondered if it might happen when time machine is backing up. It is worse when I zoom in or out or move lots elements. When the flicker happens a lot I try to take a break or slow down and the flicker will get better usually.

Thanks for looking into this

Re: mac screen flicker/blinking

DGSketcher — Fri, 09 Jan 2015 19:35:38 GMT

For me the flickering seems to start when an entity is selected and I move the scroll wheel on my mouse. It isn't consistent though and I have had it in different windows. It might also be related to the use of the trace function; once I have used the trace function then the flickering becomes noticeable even when turned off.

Running latest versions of AC18 and Yosemite

Re: mac screen flicker/blinking

Anonymous — Fri, 09 Jan 2015 22:13:03 GMT

My experience similar to DGSketcher and John Weaver. Inconsistent behavior; usually happens after a file has been open for a while (hours) - selection, mouse click. Other applications open, though not necessarily Safari or web browser. Thank you

Re: mac screen flicker/blinking

NCornia — Sat, 10 Jan 2015 00:28:25 GMT

Thanks to all for the feedback. We'll look into it.

Re: mac screen flicker/blinking

Anonymous — Tue, 13 Jan 2015 01:02:26 GMT

I'm getting this issue when I am rendering too. I also noticed that this flickering can occur when I am working on a surface within the surfaces attributes window.

Re: mac screen flicker/blinking

Anonymous — Thu, 29 Jan 2015 01:02:36 GMT

Guys,
Take a look at my video in this link and see if this is the same thing you are experiencing? Every Mac in our office has this happening in AC 18 / Yosemite. This behavior is new and exclusive to Yosemite.

https://cloud.mgarchitects.com/owncloud/public.php?service=files&t=8c7765f35aae6737cafc5588be47dac1

Re: mac screen flicker/blinking

DGSketcher — Thu, 29 Jan 2015 10:23:54 GMT

I have just spotted that I have the 3D cutting planes turned on whilst working on a floor plan and there appears to be a significant impact on the screen refresh rate compared to turning the cut planes off.

P.S. I don't know when or how they got turned on for the plan view where I assume they have little use?

Re: mac screen flicker/blinking

Laszlo Nagy — Thu, 29 Jan 2015 16:41:54 GMT

DGSketcher wrote:
I have just spotted that I have the 3D cutting planes turned on whilst working on a floor plan and there appears to be a significant impact on the screen refresh rate compared to turning the cut planes off.

P.S. I don't know when or how they got turned on for the plan view where I assume they have little use?

When you save a View of the 3D Window the Cut Plane state is stored in the View. If you then go back to the Floor Plan (without activating a Floor Plan saved View) then the 3D Cutting Planes will be ON in the Floor Plan as well. This might be a cause.

Re: mac screen flicker/blinking

Laszlo Nagy — Thu, 29 Jan 2015 16:42:49 GMT

Eric wrote:
Guys,
Take a look at my video in this link and see if this is the same thing you are experiencing? Every Mac in our office has this happening in AC 18 / Yosemite. This behavior is new and exclusive to Yosemite.

https://cloud.mgarchitects.com/owncloud/public.php?service=files&t=8c7765f35aae6737cafc5588be47dac1

Eric,

My browsers says your site is not private so I don't dare going there.
Can you put it on Dropbox or something?

Re: mac screen flicker/blinking

Anonymous — Thu, 29 Jan 2015 17:02:06 GMT

Sorry, I pasted the secure https link but the same link should work with http. This is a server that I run in my office, it just doesn't have a certificate issued to it.

Otherwise here is a dropbox link: https://www.dropbox.com/s/8ob7kanniuv8dxi/IMG_2300.MOV?dl=0

Re: mac screen flicker/blinking

Laszlo Nagy — Thu, 29 Jan 2015 17:40:42 GMT

Eric,
I will let GS know about this video. Although I think they are already investigation it it will still be useful for them to see the exact phenomenon.

Re: mac screen flicker/blinking

Anonymous — Thu, 29 Jan 2015 17:49:43 GMT

I have already sent it a week or two ago. They have seen it and haven't been able to offer any suggestions yet.

Re: mac screen flicker/blinking

Anonymous — Thu, 29 Jan 2015 18:45:47 GMT

I'd be interested to know if anyone experiences less flickering with OS X 10.10.2.

Preliminary reports are maybe encouraging, but its too early to tell.

Re: mac screen flicker/blinking

Katalin Borszeki — Wed, 04 Feb 2015 13:51:06 GMT

Unfortunately as of today we can not reproduce this issue...Can you get the phenomena to appear over and over following a certain workflow? If so, please comment or pm your steps to me! Thanks, kata