Super Resolution in Lightroom and Photoshop

In both LR and PS, the super resolution feature works only sporadically. Approx 50% - 60% of the time it does not work. It goes through the process when I click and processes for 5-10 minutes but then - nothing. No enhanced file is generated.

System info is as follows:

Acer Aspire TC-780. 24 GB of RAM
CPU: Intel i5-6400 @2.70 GHz.
Windows build 10.0.19041.

Graphics card is NVIDIA GeForce GT 710 w/ 2 GB of memory.

Both LR and PS recognize the graphics card although the super resolution feature seems to use the CPU not the graphics card. The CPU is pegged at 100% when I try to do super res.

Anyone have a similar issue or know of a fix?

Thanks.

A few questions before some more knowledgeable people chime in:

1. Did your pc come with 24GB RAM or did you add an 8GB module later as an upgrade?

2. Did you verify that your video card supports DirectX 12? You also need 4GB VRAM min if your display is 1920x1080 or greater. 2GB is fine for a 1024x768 display.


Your CPU is also at the minimum requirement end of the spectrum for LR to work.

I suspect your problem MAY be due to a hardware limitation:

- Mis-matched RAM?
- No dual channel for RAM due to using three modules?
- Video card specs?
- underpowered CPU for the task?
- All of the above?

I have an i9 system with 32GB RAM and SR has worked every time.

It came with 8 GB of RAM and I added a 16GB card.
DXDIAG reports Directx 12 is installed.

Specs are here:

Which version of ACR are you using?

Was 13.2. Updated to 13.3 and got the same result.

tspencer1 wrote in post #19252980
It came with 8 GB of RAM and I added a 16GB card.
DXDIAG reports Directx 12 is installed.

Specs are here:

Hosted photo: posted by tspencer1 in
./showthread.php?p=192​52980&i=i72567134
forum: RAW, Post Processing & Printing

Not sure what the dual channel ref is.

Thanks.

If you have an odd number of modules I don’t believe your RAM can function in dual channel mode. I’m also not sure dual channel mode works if the modules are Mis-matched. In dual channel mode your memory bandwidth is much better (read/write is faster).

Also, not sure if adding a 16GB module paired with an 8GB module gives you 24, even though the pc will report 24 being installed. I always thought when you did this the one module is limited to the speed of the lowest spec one.

With how you have it configured your pc MAY be performing somewhat less that the same pc with two identical 8GB modules (16GB in dual channel mode).

Also your monitor is 1920x1080. The LR min requirement is 4GB of VRAM for 4K or greater displays.

Bob - thanks. Just did some research on VRAM. Suggestions seem to be that VRAM can be increased in the BIOS settings. Sound right to you?

Hi,

From what I was just reading, it seems to be very much focused on GPU capabilities. So that GT 710 may very well be the problem and why its hanging and not even completing the routine.

If this is accurate, that's really annoying that they didn't allow for an optimized version to use multi-core CPU to do this.

To test things, I would suggest you try doing a small JPG and see if it works. If it's exceeding the memory of your GPU it may be why its dumping. If you're taking a large RAW file and quadrupling the pixel count (this is what super resolution does), it may be generating a file that exceeds what your GPU's memory can handle (ie, it loads the original image, then generates the new image also in the GPU's RAM, and maybe this is exceeding the 2GB). See what size image works and what size image doesn't work by using smaller JPG's or smaller resolution files. You can load system monitor to see the RAM utilization to get an idea of things perhaps.

Very best,

tspencer1 wrote in post #19252980
It came with 8 GB of RAM and I added a 16GB card.
DXDIAG reports Directx 12 is installed.

Specs are here:

Hosted photo: posted by tspencer1 in
./showthread.php?p=192​52980&i=i72567134
forum: RAW, Post Processing & Printing

Not sure what the dual channel ref is.

Thanks.

What happens if you remove the 16gb of RAM to leave the original 8gb?
And what happens if you remove the original 8gb of RAM to leave the new 16gb of RAM?

Bob - regarding the VRAM, I went into settings and changed the minimum from 2 GB to 4 GB. But DXDiag still reports it at 2 GB and I'm not sure why. John - regarding the RAM cards, before I installed the 16 GB card, Super Res would work in Photoshop with 8 GB of RAM - sometimes - but took a lot longer.

Mal - tried on smaller jpgs and got the same result. Also - in task monitor - while super res is working, the graphics card is at 0% put the hard drive churns at 100%. This means that super res is a system process and does not rely on the graphics card? Also using only 10GB of 24 GB of RAM so that doesn't seem to be an issue.

tspencer1 wrote in post #19253582
Bob - regarding the VRAM, I went into settings and changed the minimum from 2 GB to 4 GB. But DXDiag still reports it at 2 GB and I'm not sure why. John - regarding the RAM cards, before I installed the 16 GB card, Super Res would work in Photoshop with 8 GB of RAM - sometimes - but took a lot longer.

Mal - tried on smaller jpgs and got the same result. Also - in task monitor - while super res is working, the graphics card is at 0% put the hard drive churns at 100%. This means that super res is a system process and does not rely on the graphics card? Also using only 10GB of 24 GB of RAM so that doesn't seem to be an issue.

I believe that card only has 2GB installed so there is nothing you can do to turn it into 4.

I still wonder if your mis-matched RAM isn't playing nicely together. I would have installed two identical 8GB or two identical 16GB modules before going with a 8+16.