Content in Canvas Becomes Corrupted (not in the file, however)

[BlastOfBN]

For whatever reason, after a long Paint.NET session (which wasn't about to end), the content in the images I was making would appear corrupted and/or vanish, the interface text would disappear, and the rulers would also appear corrupted, with multicolored pixel blobs all over the canvas and rulers.

Trying to do something about wouldn't seem to help.

I'm not sure if it was from the plugins I was using (which was the "Outlined / Gradient Text" plugin from BoltBait.

Restarting PDN seemed to fix the issue. Has anyone else had this bug before, so this doesn't happen again?

[Rick Brewster]

Looks like memory corruption, but can't tell if it's CPU or GPU memory that got corrupted. Does not appear to be the type of corruption coming from an app bug though -- you had the app open long enough you'd have gotten a crash instead (or it would've just vanished without a crash dialog).

 

I think you should run a memory tester -- you can start with the built-in "Windows Memory Diagnostic" program.

 

[BlastOfBN]

47 minutes ago, Rick Brewster said:

you had the app open long enough you'd have gotten a crash instead (or it would've just vanished without a crash dialog).

I mean, it never crashed, it started shortly after I saved my work, and I had then shifted my computer’s focus to something else, and I switched back to PDN a couple minutes later, and this happened.

[BlastOfBN]

While my computer diagnoses the problem, here's PDN doing that thing again:




Y'know, these weird, databent-looking mis-rendered images look kind of cool. Maybe these could be used for someone's vaporwave album cover, a modern art exhibit, someone's penthouse living room...

 

 

Edited November 23, 2023 by BlastOfBN
Image accidentally inserted twice

[Tactilis]

@BlastOfBN, if I recall correctly you have only 4GB of memory in your PC. That's very small for Windows, paint.net and other apps.

I suggest that you increase that.

UPDATED:

Found the post. Yes, only 4GB

 

[BoltBait]

19 hours ago, BlastOfBN said:

he interface text would disappear

I wonder if there is a very slow handle leak in PdN. 
 

Or, your video drivers need to be updated. 

[Rick Brewster]

22 minutes ago, BoltBait said:

I wonder if there is a very slow handle leak in PdN. 
 

Or, your video drivers need to be updated. 

 

Nah; if there was a handle leak, it would just crash.

 

This really does look like GPU video memory corruption, which is generally caused by faulty memory. I've seen this sort of thing before (not in PDN) and that's what it looks like. And it's not surprising that it doesn't always happen, or it only happens after "awhile."

 

Should also make sure the GPU drivers are up-to-date.

[BlastOfBN]

On 11/22/2023 at 5:54 PM, Rick Brewster said:

think you should run a memory tester -- you can start with the built-in "Windows Memory Diagnostic" program.

By the way…

 

I eventually ran a memory diagnostic earlier today, which I triggered from a hard restart (physically holding the power switch). As soon as it booted up, a BSOD-esque screen displayed (no, it wasn’t a crash screen), reading something along the lines of “running memory diagnostics”. After it finished and I got to the desktop, it claimed that there were no memory issues found.

 

On 11/23/2023 at 6:58 AM, Tactilis said:

you have only 4GB of memory in your PC. That's very small for Windows, paint.net and other apps.

My hypothesis is that it’s due to the 4 gigabytes of memory, which isn’t affecting me as of right now.

[Rick Brewster]

Yeah this sounds like a hardware/memory issue. Windows Memory Diagnostic only catches the easiest errors, to go deeper you want to run something called Memtest86. You will probably have to run it overnight.

 

In any case this definitely does not sound like a Paint.NET bug.