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manuth avatar image
5 Votes"
manuth asked GLH-8111 published

Weird Rendering Issues in WPF-Apps

A few weeks ago I started noticing that I have some weird rendering issues in all WPF-apps I use.
Some parts of the GUI are not being rendered or are rendered very oversized and blurry which prevents me from using the apps as expected.

So far, I could reproduce the error in following applications:

  • Rayman Control Panel (app for installing, managing and configuring Rayman-games - available for free)

  • Sonos Controller (app for controlling Sonos speakers - available for free)

  • dotPeek (app for disassembling .NET-assemblies - available for free)

Sadly I couldn't find myself able to fix this issue - after completely wiping my system drive and reinstalling Windows, the issue reappeared after a few days (it didn't appear on day 1, though).

// edit:
Here's what I've tried so far:
- Completely reinstalling Windows (issue re-appeared after a day or two)
- Updating the graphics driver
- Trying to reproduce the issue both with hardware-acceleration enabled and hardware-acceleratiuon disabled (the issue appeared in both cases)

It looks like apps which are started immediately after logging in run with no issue...? I'm a little confused about that

Do you know what might cause this issue?
Is there anything I can do?

As it's quite hard to describe what I see on my screen I'll post a few screenshots
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windows-wpfdotnet-wpf-xaml
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JonathanCamenzind-2884 avatar image JonathanCamenzind-2884 ·

I have exactly the same issue.

What I tried:
- Updating graphics driver
- Reinstalling graphics driver from scratch
- Installing different GPU (GTX 970 -> RTX 3070 Ti)
- Installing all Windows Updates
- Using different display cable (Although that shouldn't matter, have the same issue on all 3 displays)
- Stopping programs that modify visual appearance

Would be awesome to have a solution for this, it's very annoying :/

1 Vote 1 ·
SimpleSamples avatar image SimpleSamples ·

Have you checked the device driver for your display? Does it need updating?

0 Votes 0 ·
Viorel-1 avatar image Viorel-1 ·

Maybe it is a hardware issue? If you find an option like “Hardware acceleration” for your display or adapter, then try enabling or disabling it.

0 Votes 0 ·
manuth avatar image manuth Viorel-1 ·

Sadly, both updating the graphics driver to the latest version (471.68 released at 2021-08-10) and enabling (and re-disabling) hardware-acceleration as described here didn't work.


0 Votes 0 ·
TomWelham-3168 avatar image TomWelham-3168 ·

I've got this same issue.. just with certain apps.. Glitchy graphics, showing enlarged versions of the displayed content in patches.

0 Votes 0 ·
Hendrik-1890 avatar image Hendrik-1890 ·

Same thing here. I noticed this about two days ago in Affinity Photo and my own WPF apps. Updating graphics driver (GTX 1660 Super) doesnt help. I cant really work on my apps until this is fixed.

0 Votes 0 ·

2 Answers

mokula avatar image
6 Votes"
mokula answered majid-1321 published

Same problem here but after 2h of search I've found solution on github:
https://github.com/dotnet/wpf/issues/707

TLDR;
- Uninstal Sonic Suite and everything related to this piece of ***
- Delete service Nahimic

After doing that my WPF apps started working normally(Affinity Designer, NordVPN client etc.)

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TomWelham-3168 avatar image TomWelham-3168 ·

Thanks for this. I couldn't work out how to delete Nahimic, but disabling it seemed to do the trick.

2 Votes 2 ·
majid-1321 avatar image majid-1321 TomWelham-3168 ·

for me it was just Nahimic.

1 Vote 1 ·
manuth avatar image manuth ·

Awesome! Thanks a ton!
I remember Settlers II and Rayman 2 (both very old games, lel) both had issues while the Nahimic-service was running.

Weird to hear that this also causes issues in other apps.

I had the Nahimic service installed cause of my motherboard's (ASUS ROG Zenith Extreme Alpha) audio driver.

Sadly I don't have a software-component I could uninstall to get rid of said service.
However, simply disabling the service "Nahimic service" and performing a reboot solved the issue!

You sure saved my day!

1 Vote 1 ·
GLH-8111 avatar image
0 Votes"
GLH-8111 answered GLH-8111 published

Thx mokula, you saved my day ... i was investigating for hours on this....unbelievable pice s*** nahimic.

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