Lightroom CC/6: Annoying acceleration flicker glitch

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  • Problem
  • Updated 6 months ago
  • Acknowledged
  • (Edited)
Merged

This conversation has been merged. Please reference the main conversation: Lightroom Classic 7.3: Crop tool showing last image (GPU on)

Hi,

I just installed Lightroom 6 on my Windows 7 x64 machine.
It works just fine, however, after processing picture A (in the develop module) and switching to picture B (using the right arrow) if I click on "R" (crop) or "\" (compare to before) or zoom in, I see for a fraction of a second a flicker of the previously processed image A. (and I've already switched to image B)
FYI, I have an nVidia GTX 650 video card and process D810 raw files. Perhaps you're developing on super fast hardware and you don't notice it, but on my machine I do notice it all the time.
This doesn't occur when the graphics card acceleration is disabled, so this is clearly an acceleration bug. Also, it only happens when I have a secondary display enabled (I have a single card with dual DVI monitor support).

Very annoying!

While it causes no harm and it happens only the first time for each new picture I process, I find it very annoying. It's clearly a bug, because this shouldn't happen.

I can probably capture and post a video of this.

-- TR
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Tzvi Roitshtein

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Posted 4 years ago

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Rikk Flohr, Official Rep

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Thanks for the video and confirming your driver versions.

I can see what you are talking about in the video but don't see it on my (similar but not identical) system.

We will have to turn it over to the engineering team to see what they can glean from your information.
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Rikk Flohr, Official Rep

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One additional thought here: A while back I had a flickering issue when going to the Keyword field. Ultimately it was caused by using a corrupt Windows Aero theme for my desktop appearance.

So, the question is, are those of you having this problem using default Windows color schemes or are you using Aero themes?
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Tzvi Roitshtein

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Rikk

I am using the default Windows theme (which is an Aero one afaik) I never touched or changed the default theme as far as I can tell.
That said you can see that Mac OS users have complained about this as well so I'm doubtful that could be it.

Also I'd be hard pressed to explain why am I seeing a brief glimpse of the previously processed (where I last pressed pressed \) image. (even though I sometimes pass through 2-3 photos before I try \ again)

-- TR
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Aleksey Tabakman

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What Windows theme? Update drivers?
Are you kidding?
I have same issues as shown on video on Mac OS. Glitches and black screen blinking while pressing '\' key in Develop mode. Please fix this annoying bug! I just can't believe that in the whole Dev/QA team nobody noticed it...
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Sefer Tov

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Rikk,

Version comes, version goes... and nothing changes.
With the release of lightroom 6.3 the problem *still* persists.

To make matters worse, I just bought a new desktop (with completely new hardware). It's an Asus Z170 motherboard, with Intel 6700K CPU, using an EVGA nVidia 970 video card, running Windows 10 Pro x64 with 32GB ram.

Running with the latest NVidia drivers 359.00 (from 11/19/2015) - I still experience that pestering flicker, which forced me to disable GPU acceleration, again. *sigh*

The only other detail I thought may be relevant is that I'm running a calibrated monitor (using ICC profile generated by ColorMunki Photo).

It's been 7 months since I first reported this, and despite best efforts, nothing had changed since. It's either a very low priority issue from Adobe's perspective (fixing bugs that have been plaguing their users, vs -lets say- pushing out a completely and poorly redesigned "import" screen, and then reverting it) or they simply don't care.

Honestly, I believe I've barked enough about this, supplied every bit of information I was asked for, tried every suggestion and even posted a video demonstrating it occurring multiple times. I cannot imagine what can I do more beyond what I've done already, so I must admit defeat and abandon this issue.

I wish the best to all the people who stuck along with me on this journey. I however, must jump ship now to Capture One Pro 8.3 - I find it produces better colors (out of the box) and has some very interesting controls, and although it lacks in some areas when compared to Lightroom, I think it's no less powerful.

So long and thanks for all the fish.

-- TR
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Kim Letkeman

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Oh yeah, regarding the trippy effect. As I move back and forth, Lightroom flashes either copies of the editing panel in the space where the image disappears while being resized periodically, or it displays the grey background. I use light grey and that is what I see when the image is not there most of the time. The examples where I see something else are rare and show the same image enlarged (i.e. probably the 1:1 preview) ...

Are you making sure that you have 1:1 previews built before editing? This is a known optimization. Also, it sounds like your card / driver is somehow double buffering incorrectly ... but then there was a GTX960 implicated as well ... still, each manufacturer is free to make subtle mistakes when designing their cards ....

And none of this is meant to excuse the rather lacklustre code in Lightroom around resizing and changing the image ... it is slow for sure (you would think that someone would consider precalculating obvious changes in the background, like the displayable portion of the next and previous 3 images and the overlay for cropping etc .. would be much, much quicker to respond methinks.)
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Sefer Tov

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Hi Kim,

My previous machine was an Intel 3770K (running at 3.5Ghz using Intel Z77 chipset, 16GB of RAM) using nVidia 650, running on Windows 7 x64.
My current machine is an Intel 6700K (running at 4Ghz using Intel Z170 chipset, 32GB of RAM) using NVidia 970, running on Windows 10 x64. Oh, and an SSD main drive.

Both machines have very fast CPUs by today's standards (and both with 4 cores and hyperthreading) and they perform remarkably well in benchmarks.

My nVidia drivers come straight from nVidia's web site and are always current. There is no reason to assume that my drivers would behave differently on my specific system (and double redraw? And at such slow frame rates too?) than they would on another's system.

Both machines exhibit the *same* flawed behavior despite not sharing any parts. And it's very obvious and *very* pronounced. I will post later a video of resizing Lighroom's window.

This has nothing to do with the speed of the hardware, I can vouch that Capture One processes raw images extremely fast, other video processing tools work amazingly fast.

Since other tools using GPU acceleration don;t exhibit such behavior, I must assume that the problem is with the software.

Video will be posted soon.

-- Sefer
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Kim Letkeman

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Yes, those chips are much faster than my 8150, although the extra cores do make a difference. But the 6700k is the third fastest chip on the mobile benchmark site so it is not a problem. Did you also change GPUs? If not, then I would suggest the issue might lie there. Or in the configuration of Lightroom, which as I said is very sensitive to several settings ... regarding frame rates, remember that my much slower chip redraws so fast that I never noticed the slight flicker before working hard to try to see it. And my flicker is much less obnoxious than yours as I see the 1:1 preview briefly, whereas you see a different image. Very strange ...
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Sefer Tov

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Yes, as I mentioned I've upgraded my video card from nVidia 650 to nVidia 970.
I don't generate 1:1 previews as it slows down the import too much.

Here's the video I promised. If that doesn't exhibit the flaw in its fullest, I don't know what will. Hopefully it will tip the developers with the potential cause for this issue.

https://goo.gl/56MFlq

-- Sefer
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Kim Letkeman

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I decided to try to reproduce it in a fresh new folder with 4 freshly imported images, and sure enough I got it to do exactly what you show in your videos, mostly. For some reason, all my larger folders with processed images in them were much more responsive and this was rarely visible at all.

I have to say that it does not really bother me at all anyway. I rarely resize since I prefer full screen, and the flicker when doing the before after thing is pretty minor, and I almost never do it anyway.

I suspect that the reason why the majority of users are unconcerned is that they either don't do those things much. But I do agree that it would be nice to get that fixed ...

The window redraw in almost all cases could sure use some work. One of the most brute force examples of such code I have seen.
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Greg Milne

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I had this problem, it was fixed with a Lightroom upgrade (to 6.1 I think) and now is back after upgrading to Lightroom 6.3. Unfortunately I upgraded to Windows 10 at the same time so difficult to know which is the culprit.

Specifically, in the Develop module if I view the Before image the screen briefly displays what looks like a cached image. Most pronounced if I zoom in to 100% then hit "\" I'll briefly see a normal size image. Or if currently zoomed in, then zoom out to normal size view and hit "\" I'll briefly see a zoomed in image. All very disconcerting!

If I turn off graphics acceleration the problem goes away.

Graphics card: NVidia Geforce GTX 960 with driver version 10.18.13.5906 (date: 11/24/2015). Windows OS 10 Pro 64bit
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Matthew Brown

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This reply was created from a merged topic originally titled Sliders not accurate or skipping in Develop. CC 2015.5.

https://www.youtube.com/watch?v=EqTB3xPiEvM
This is the problem video
Lightroom CC 2015.5
It just will not advance in small increments and show accurately on screen without 'blacking' and is then impossible to edit correctly. 
All sliders do the same.

https://www.youtube.com/watch?v=n9bqn_scZg4
This is on the same mac
Lightroom 5.6
No Issue using the sliders.

Why do you think this is? I'm paying for the most recent software every month. I don't want to use an outdated version just because it works. 

My system ? Not new by any means...but this really shouldn't be a problem for running Lightroom. 
27-inch, Mid 2011

Graphics: AMD Radeon HD 6970M 1024 MB Memory: 16 GB 1333 MHz DDR3

Processor: 3.4 GHz Intel Core i7



Thank you for any help. It's very frustrating. 

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John R. Ellis, Champion

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From original topic: Try unchecking the option Preferences > Performance > Use Graphics Processor.
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Matthew Brown

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Try unchecking the option Preferences > Performance > Use Graphics Processor.

This worked for me. Thanks to another who tipped me off on this one. Thanks to that person.
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johmphot Tantawichien

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I'm also got a similar problem in 2015.5 release.
Whenever I zoom in/out or make an adjustment (curve, contrast, etc), the preview appears to be darker for a moment before it shows the correct preview. Like this:

adjusting -> flashing dark preview -> correct preview ->
adjusting again -> flashing dark preview -> correct preview

it's very frustrating when develop photos.

I'm not sure what causes this problem. If I disable GPU acceleration, there is no flickering. Before 2015.5 release, everything was fine and also no flickering.

 

My system:

Lightroom CC (2015.5 release)

MacBook Pro early 2011 (OS X 10.10.4)

Core i7 2.2 Ghz

AMD 6750M (1GB)

I use external display with thunderbolt HDD in daisy chain (mac -->thunderbolt hdd-->display)

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Chris Slasor

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I have the same problem, it sounds like a little glitch, but it is SO bad to try and use :( It's really making a chore of using Lightroom :(
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Whitney Fox

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I just downloaded creative cloud for LR on my 27" iMac and this flickering while in Develop mode is KILLING ME!  What the heck?!  Why should this happen with the newest update? I would expect it to run BETTER than my prior LR versions.  I read on some of these posts turning off GPU helps -- what is this ad how do I find it?  Thank you.
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Whitney Fox

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Nevermind, I found it and unchecked the box for "Use Graphics Processor" and it's not doing it right now.  Thank heavens!
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Matthew Brown

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good news !
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Chris Cox

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The iMac 27" has some known driver problems that cause extreme flicker -- Apple is working to solve them in an OS update.
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Toby Tucker

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Same problem here for me. So glad that I found this post. It was going to be hard to explain that I wasn't going crazy.
Feel that turning Use Graphics Processor off is not the solution since this version of LR had the GPU acceleration as one of their biggest additions. 
Hope Adobe fixes this soon. 
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Wojciech Brzozowski

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LR 6.8 and flickering with "Use Graphics Processor" switched on still exists. Actually it is happening quite often on a lot of photo developing tools. Now I found this problem occurring also when using Adjustment Brush. It's  kinda problem with refreshing changed parts of the image and general problem with image processing.

spec: macOS Sierra, MBP 15 (mid 2015), 16 GB RAM, AMD Radeon R9 M370X 2048  MB
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Михаил Тальников

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Official Cloud, Lightroom 7.3.1, camera RAW 10.3
Fresh very clean officialy activated Win10 with 1803 release!!!
Run on HP Elitebook i7-3630QM, 2.4GHz, 24gb of RAM, work on Nikon D4s raws (nef).
Video card NVidia Quadro K4000M, fresh drivers 397.31 from Nvidia site.

THE PROBLEM PERSIST!!! (Only when i resize pictures, appear the last edited one), no black flickers.

HORRIBLE, STILL NOT RESOLVED...

ADOBE, WHERE ARE YOU???
(Edited)

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