ACR cursor problem (PC/Win10x64, ACR v9.3.1.520, GPU GTX970M)

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  • Updated 2 years ago
  • (Edited)
ACR UI bug (PC/Win10x64, ACR v9.3.1.520, GPU GTX970M)

resizing "spot removal" brush can often leave the brush in such messy state (persistent, till reresize it again) - screenshot with a cell ph.... brush action is unaffected, but it is still very irritating

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DP HOME

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Posted 3 years ago

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Chris Cox

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That's most likely a video driver bug (probably happens at certain sizes of the cursor).

Try updating the video driver from NVidia's website.
If you have another GPU in the system (integrated), also update it's driver from the GPU maker's website.
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DP HOME

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discrete GPU disabled - bug still exists...
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Chris Cox

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First, update all the drivers.
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DP HOME

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> First, update all the drivers.

I updated with the latest from NVidia website (before they were as MS supplied through regular Windows 10 installations/update - as a result of that update ACR stopped detecting discrete NVidia GPU at all and detects only iGPU (HD Graphics 4600)... when I uncheck the option in ACR settings "Use Graphics Processor" - the bug still exists.
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DP HOME

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PS: PS CC2015 also stopped detecting NVidia dGPU now with the latest drivers from NVidia website - only detects iGPU...
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Chris Cox

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OK, that's a problem with the Nvidia drivers.
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DP HOME

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I managed to restore dGPU usage for PS and ACR through NVidia control panel - but the ACR bug (with the latest drivers from/for iGPU and dGPU) still here

intel driver = MS reports version 10.18.15.4279 , 08/24/2015
nvidia driver = MS reports version 10.18.13.6143 (= 361.43 in Nvidia speak), 12/16/2015

no other GPU software that I am using (CaptureOne or FastRawViewer) exhibit any visible glitches
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Chris Cox

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This isn't strictly a GPU issue, but a basic video driver (large cursor support) issue. If it were in the ACR cursor code, it would show for everyone on all GPUs.
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DP HOME

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> This isn't strictly a GPU issue, but a basic video driver (large cursor support) issue. If it were in the ACR cursor code, it would show for everyone on all GPUs.

And how do you know that it is actually not ? so far I have it reproduced w/ gpu disabled, with 4600 gpu used by ACR and with nvidia gpu use by ACR...
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Chris Cox

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Because nobody else has reported this problem, out of millions of users who have installed the latest ACR.
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DP HOME

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> large cursor support

it seems true that only relatively large cursors exhibit such behavior... but ACR draws it, so one can assume that ACR can detect that something was not drawn properly, no ? and it is irritating because you work with facial skin defects @ high magnification 200%-1600% and so cursor is necessary large... just fix it ?
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Chris Cox

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No, the driver draws the cursor, and ACR calls the OS to set the cursor, which then calls the driver to set the cursor.
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DP HOME

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and one more point - when you change the size of the cursor with right mouse botton pressed then when you release that button your cursor jumps to the new position with center now where the small mouse cursor which looks like "" was when you release the button - this is wrong ! I change the size of the spot, not the position of the spot and this is what leads to the bug (at least in my case) ... try to leave the resized spot where the center of it was when you started to resize it and everything shall be fine... how about that change to ACR at least ?
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Chris Cox

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The center spot is left the same by ACR, but what you are describing sounds like another aspect of the video driver bug.

If ACR always set the cursor incorrectly - then it would show a problem for every user. But only you are seeing this, so it is something specific to your GPU/driver configuration.
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DP HOME

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> which looks like ""

which looks like "< ---- > "
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DP HOME

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here is the youtube video of what I mean - you can clearly see how cursor jumps when you release the mouse button - this is not an intended behavior when you only want to resize the size with the mouse, not move the cursor

https://youtu.be/ZQu7FbSkFFU

eliminate jumping and problem shall be gone I think
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Chris Cox

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Yes, that is part of the video driver bug we have been discussing.
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DP HOME

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> Because nobody else has reported this problem, out of millions of users who have installed the latest ACR.

so on your computer the cursor (spot healing) when you resize it with a a mouse does not jump (like in the video) when you release the mouse button ?
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Chris Cox

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Nope, I have not seen that problem on any of our systems, nor heard of it from other users.
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DP HOME

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Hi Cris, so what do we have now ? graphic drivers the same with the new ACR release problem gone... so who in the end fixed the code ? not NVidia or Intel, mind you.