20H2 patch has screwed up my audio and video every 2 seconds catches

Try3 said:

I do not about different types of display card. dalchina would be a much better guide for you than I could be.

But I would have thought that reinstalling the drivers would have thrown up an error if the hardware was flawed.

Best of luck,
Denis

yeah I dont think its hardware. It started the moment I rebooted after that "update"

Thank you again.

dalchina said:

The problem will be due to you getting a new set of drivers, from low level upwards, and at least one of those is causing the latency problems.

To consider: if you were to disable your sound drivers and then run LatencyMon, you could still have a latency issue which would affect sound quality. The problem is not necessarily the sound drivers.

You've not posted the LatencyMon report. That might give the beginning of a clue.

You can of course try -for test purposes- as I suggested elimination (crude, uncertain):
- disabling the video card completely (and use the MS basic driver
- disable anything to do with networking/internet
- disable more that are unnecessary for a test run via Device Manager
Use e.g. Autoruns (free from MS) to disable drivers if you are CONFIDENT you know what you are doing.
(See guides below)

You can get older drivers from your manufacturer's site.

OR you can take the analytical approach (there are examples in threads here) and use the Windows Performance Analyser (non-trivial).

In due course, hopefuly you will start using disk imaging routinely.

There was one thread where the user iterated (using disk imaging) between two builds and eventually extracted the pertinent low-level driver from the previous build and used it in the later build.

** Do feel free to search tenforums for other threads e.g. search for
LatencyMon
stutter
latency

Very basic guide: (tenforums messes up this URL so I've added a space)
h ttps://www.sweetwater.com/sweetcare/articles/solving-dpc-latency-issues/

https://apogeedigital.com/pdf/Window...yMon-Guide.pdf
- with link to a page on LatencyMon's site.

Thank you once again. I did run LatencyMon again but this time exported the data. Now I only ran it for about 10 minutes but this was the feedback:

____________________________________________________________________________________________________ _____CONCLUSION_____________________________________________________________________________________ ____________________Your system appears to be having trouble handling real-time audio and other tasks. You are likely to experience buffer underruns appearing as drop outs, clicks or pops. One or more DPC routines that belong to a driver running in your system appear to be executing for too long. One problem may be related to power management, disable CPU throttling settings in Control Panel and BIOS setup. Check for BIOS updates. LatencyMon has been analyzing your system for 0:05:41 (h:mm:ss) on all processors._________________________________________________________________________________________ ________________SYSTEM INFORMATION_________________________________________________________________________________________ ________________Computer name: DESKTOP-A33O5KKOS version: Windows 10, 10.0, version 2004, build: 19041 (x64)Hardware: System Product Name, System manufacturerCPU: GenuineIntel Intel(R) Core(TM) i7-7700K CPU @ 4.20GHzLogical processors: 8Processor groups: 1RAM: 32701 MB total_______________________________________________________________________________________________ __________CPU SPEED_______________________________________________________________________________________________ __________Reported CPU speed: 420 MHzNote: reported execution times may be calculated based on a fixed reported CPU speed. Disable variable speed settings like Intel Speed Step and AMD Cool N Quiet in the BIOS setup for more accurate results.____________________________________________________________________________________________ _____________MEASURED INTERRUPT TO USER PROCESS LATENCIES___________________________________________________________________________________________ ______________The interrupt to process latency reflects the measured interval that a usermode process needed to respond to a hardware request from the moment the interrupt service routine started execution. This includes the scheduling and execution of a DPC routine, the signaling of an event and the waking up of a usermode thread from an idle wait state in response to that event.Highest measured interrupt to process latency (µs): 100984.0Average measured interrupt to process latency (µs): 319.722357Highest measured interrupt to DPC latency (µs): 100978.70Average measured interrupt to DPC latency (µs): 316.550644__________________________________________________________________________________________ _______________ REPORTED ISRs________________________________________________________________________________________________ _________Interrupt service routines are routines installed by the OS and device drivers that execute in response to a hardware interrupt signal.Highest ISR routine execution time (µs): 277.258571Driver with highest ISR routine execution time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft CorporationHighest reported total ISR routine time (%): 0.066592Driver with highest ISR total time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft CorporationTotal time spent in ISRs (%) 0.081106ISR count (execution time <250 µs): 275012ISR count (execution time 250-500 µs): 0ISR count (execution time 500-1000 µs): 1ISR count (execution time 1000-2000 µs): 0ISR count (execution time 2000-4000 µs): 0ISR count (execution time >=4000 µs): 0___________________________________________________________________________________________________ ______REPORTED DPCs________________________________________________________________________________________________ _________DPC routines are part of the interrupt servicing dispatch mechanism and disable the possibility for a process to utilize the CPU while it is interrupted until the DPC has finished execution.Highest DPC routine execution time (µs): 100811.260952Driver with highest DPC routine execution time: storport.sys - Microsoft Storage Port Driver, Microsoft CorporationHighest reported total DPC routine time (%): 0.924711Driver with highest DPC total execution time: storport.sys - Microsoft Storage Port Driver, Microsoft CorporationTotal time spent in DPCs (%) 1.029434DPC count (execution time <250 µs): 504845DPC count (execution time 250-500 µs): 0DPC count (execution time 500-10000 µs): 17DPC count (execution time 1000-2000 µs): 1DPC count (execution time 2000-4000 µs): 0DPC count (execution time >=4000 µs): 378_________________________________________________________________________________________________ ________ REPORTED HARD PAGEFAULTS__________________________________________________________________________________________ _______________Hard pagefaults are events that get triggered by making use of virtual memory that is not resident in RAM but backed by a memory mapped file on disk. The process of resolving the hard pagefault requires reading in the memory from disk while the process is interrupted and blocked from execution.NOTE: some processes were hit by hard pagefaults. If these were programs producing audio, they are likely to interrupt the audio stream resulting in dropouts, clicks and pops. Check the Processes tab to see which programs were hit.Process with highest pagefault count: bdservicehost.exeTotal number of hard pagefaults 256Hard pagefault count of hardest hit process: 158Number of processes hit: 15__________________________________________________________________________________________________ _______ PER CPU DATA________________________________________________________________________________________________ _________CPU 0 Interrupt cycle time (s): 45.120728CPU 0 ISR highest execution time (µs): 277.258571CPU 0 ISR total execution time (s): 2.205775CPU 0 ISR count: 252236CPU 0 DPC highest execution time (µs): 100811.260952CPU 0 DPC total execution time (s): 28.001489CPU 0 DPC count: 467240______________________________________________________________________________________________ ___________CPU 1 Interrupt cycle time (s): 0.559918CPU 1 ISR highest execution time (µs): 15.238571CPU 1 ISR total execution time (s): 0.007389CPU 1 ISR count: 14192CPU 1 DPC highest execution time (µs): 145.029762CPU 1 DPC total execution time (s): 0.019313CPU 1 DPC count: 4602________________________________________________________________________________________________ _________CPU 2 Interrupt cycle time (s): 0.675740CPU 2 ISR highest execution time (µs): 2.383095CPU 2 ISR total execution time (s): 0.000304CPU 2 ISR count: 386CPU 2 DPC highest execution time (µs): 162.178333CPU 2 DPC total execution time (s): 0.029587CPU 2 DPC count: 7656________________________________________________________________________________________________ _________CPU 3 Interrupt cycle time (s): 0.568526CPU 3 ISR highest execution time (µs): 13.751429CPU 3 ISR total execution time (s): 0.002582CPU 3 ISR count: 4702CPU 3 DPC highest execution time (µs): 179.087619CPU 3 DPC total execution time (s): 0.010447CPU 3 DPC count: 3417________________________________________________________________________________________________ _________CPU 4 Interrupt cycle time (s): 0.628869CPU 4 ISR highest execution time (µs): 1.829048CPU 4 ISR total execution time (s): 0.000113CPU 4 ISR count: 150CPU 4 DPC highest execution time (µs): 88.961667CPU 4 DPC total execution time (s): 0.023095CPU 4 DPC count: 6180________________________________________________________________________________________________ _________CPU 5 Interrupt cycle time (s): 0.545584CPU 5 ISR highest execution time (µs): 9.6250CPU 5 ISR total execution time (s): 0.001220CPU 5 ISR count: 2003CPU 5 DPC highest execution time (µs): 132.457857CPU 5 DPC total execution time (s): 0.014856CPU 5 DPC count: 3830________________________________________________________________________________________________ _________CPU 6 Interrupt cycle time (s): 0.677227CPU 6 ISR highest execution time (µs): 1.320476CPU 6 ISR total execution time (s): 0.000072CPU 6 ISR count: 91CPU 6 DPC highest execution time (µs): 105.960714CPU 6 DPC total execution time (s): 0.038397CPU 6 DPC count: 7839________________________________________________________________________________________________ _________CPU 7 Interrupt cycle time (s): 0.564844CPU 7 ISR highest execution time (µs): 2.375952CPU 7 ISR total execution time (s): 0.000782CPU 7 ISR count: 1253CPU 7 DPC highest execution time (µs): 85.025714CPU 7 DPC total execution time (s): 0.017840CPU 7 DPC count: 4477________________________________________________________________________________________________ _________