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Develop sliders sticky in 9.3!

Joined
Jul 10, 2019
Messages
3
Lightroom Version
Lightroom Classic version: 9.3
Operating System
Windows 10
9.3 is supposed to make the develop sliders more responsive. I'm finding the opposite, at times. I have a fast PC and SSD disk and previously this was very slick. Now when I drag the sliders (shadows and texture in particular) nothing changes until 2 or 3 seconds after releasing the mouse. Also while dragging I am getting large rectangular flashing boxes appearing at random on the screen. Any one else seen this?
 
Joined
Sep 29, 2007
Messages
22,545
Location
Isle of Wight, UK
Lightroom Experience
Power User
Lightroom Version
Cloud Service
Have you checked your graphics card driver is up to date direct from the manufacturer? That's the usual suspect.
 
Joined
Jul 10, 2019
Messages
3
Thanks for that. The driver was 9 months out of date, but ONLY 9 months and it's a fast new video card anyway. Updating the driver seems to have fixed the stickiness problem and all was well for a week. Now on occasions there are random rectangular blocks of white on an image in Develop mode, following a string of adjustments. These stay on the screen, not flashing as before! I have to undo the last change to get rid of it and then redo it. Something under the hood is strugglng to keeping up, I think, and not quite finishing its queue of changes. Maybe this relates to performance issues that other posts have noted?
 
Joined
Sep 29, 2007
Messages
22,545
Location
Isle of Wight, UK
Lightroom Experience
Power User
Lightroom Version
Cloud Service
White blocks would still point to issues with the graphics card driver. In Preferences > Performance, what's the GPU pop-up set to? Does it say it's doing basic or full acceleration? You could try changing that.

Also, there are reports of issues between graphics drivers and Windows Insider Preview builds causing crashes at the moment, could be a good thing to rule out.
 
Joined
Jul 10, 2019
Messages
3
Well, the video card manufacturer has just released yet another driver update! I have installed that and now I no longer get the white boxes. Instead I got the occasional flashing psychedelic boxes that I originally saw. The sliders are no longer sticky though.

As for GPU, I looked at this next as per your suggestion. It was set to Automatic and said it was using GPU, no details as to full or basic acceleration. I changed to Manual and that was set to display only, forcing Basic. I ticked the box for image processing which forced it into Full acceleration. I think that could explain the problem, as I only saw the flashing when dragging sliders, so thanks for that tip. Unfortunately I have still seen the occasional flashing box, though perhaps not as much.

So, in the last 2 weeks I've had a major Windows 10 upgrade, plus a Lightroom release that delivers performance improvements, plus 2 video driver updates. There are way too many changes happening at the same time here, no wonder there are glitches! And no wonder the drivers are having to be updated so much. Ho hum. I think this is going to take some time (and more updates) to settle down.
 
Joined
Sep 29, 2007
Messages
22,545
Location
Isle of Wight, UK
Lightroom Experience
Power User
Lightroom Version
Cloud Service
Yeah, the fact that the driver update partially fixed it means hopefully another driver update will finish the job.
 
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