I have gathered more information and narrowed down the problem to a singular update. The old Issue has been closed.
After installing Windows 10 update KB4100347 the following problem occurs:
The FPS drop from 120 (or 60) to up to 0.
The severity of the FPS drop is proportional to:
[Mouse Velocity] x [Mouse polling rate].
Here a list of affected CPUs and additional infomation regarding update KB4100347:
KB4100347: Intel microcode update
https://support.microsoft.com/en-us/help/4100347/intel-microcode-updates-for-windows-10-version-1803-and-windows-server
My CPU, as an example: intel i7-4790K @4.00GHz
I can provide video evidence on request.
This behaviour is only observed in DaoC Uthgard.
I can not reproduce it in any other game - some tests: FFXIV, FFXV, League of Legends, Browser Flash Games, Warcraft 3, etc...
1. Install an affected CPU
2. Install the update
3. Open DaoC Uthgard
4. Move your mouse in circles - fast
5. Observe stuttering / FPS drop
Intended Behaviour: Mouse movement should not affect in-game FPS.
How to fix: I don't have insights into CPU microcode, or how it responds to DaoC.
Should be self evident. This bug appears and disappears with the mentioned update.
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Issue was invalid:
Not an issue that is fixable by Uthgard |
| 0 players say this report is valid, 0 disagree |