Welcome to our peer-to-peer forums, where owners help owners. Need help now? Visit eSupport here.

English Community

Gaming – Lenovo LegionGaming Laptops
All Forum Topics
Options

5 Posts

10-14-2019

Brazil

22 Signins

122 Page Views

  • Posts: 5
  • Registered: ‎10-14-2019
  • Location: Brazil
  • Views: 122
  • Message 41 of 258

Re: Lenovo Y540 Audio desync (Audio ahead of Video)

2019-10-14, 14:11 PM

Yep, the report of latencymon:

 

 

_________________________________________________________________________________________________________
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. Also one or more ISR routines that belong to a driver running in your system appear to be executing for too long. At least one detected problem appears to be network related. In case you are using a WLAN adapter, try disabling it to get better results. 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  0:01:49  (h:mm:ss) on all processors.


_________________________________________________________________________________________________________
SYSTEM INFORMATION
_________________________________________________________________________________________________________
Computer name:                                        DESKTOP-AGJ3QNK
OS version:                                           Windows 10 , 10.0, version 1903, build: 18362 (x64)
Hardware:                                             800G5M/800G5W, SAMSUNG ELECTRONICS CO., LTD., NP800G5M-XT1BR
CPU:                                                  GenuineIntel Intel(R) Core(TM) i5-7300HQ CPU @ 2.50GHz
Logical processors:                                   4
Processor groups:                                     1
RAM:                                                  8101 MB total


_________________________________________________________________________________________________________
CPU SPEED
_________________________________________________________________________________________________________
Reported CPU speed:                                   2496 MHz

Note: 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.

WARNING: the CPU speed that was measured is only a fraction of the CPU speed reported. Your CPUs may be throttled back due to variable speed settings and thermal issues. It is suggested that you run a utility which reports your actual CPU frequency and temperature. 

_________________________________________________________________________________________________________
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):   5914,90
Average measured interrupt to process latency (µs):   12,819995

Highest measured interrupt to DPC latency (µs):       5908,60
Average measured interrupt to DPC latency (µs):       7,468524


_________________________________________________________________________________________________________
 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):              5092,892628
Driver with highest ISR routine execution time:       HDAudBus.sys - High Definition Audio Bus Driver, Microsoft Corporation

Highest reported total ISR routine time (%):          0,055052
Driver with highest ISR total time:                   HDAudBus.sys - High Definition Audio Bus Driver, Microsoft Corporation

Total time spent in ISRs (%)                          0,060970

ISR count (execution time <250 µs):                   37603
ISR count (execution time 250-500 µs):                0
ISR count (execution time 500-999 µs):                5
ISR count (execution time 1000-1999 µs):              0
ISR count (execution time 2000-3999 µs):              0
ISR 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):              6347,578526
Driver with highest DPC routine execution time:       ndis.sys - NDIS (Especificação de Interface de Driver de Rede), Microsoft Corporation

Highest reported total DPC routine time (%):          0,180939
Driver with highest DPC total execution time:         ndis.sys - NDIS (Especificação de Interface de Driver de Rede), Microsoft Corporation

Total time spent in DPCs (%)                          0,485182

DPC count (execution time <250 µs):                   356268
DPC count (execution time 250-500 µs):                0
DPC count (execution time 500-999 µs):                732
DPC count (execution time 1000-1999 µs):              14
DPC count (execution time 2000-3999 µs):              2
DPC count (execution time >=4000 µs):                 0


_________________________________________________________________________________________________________
 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:                 explorer.exe

Total number of hard pagefaults                       258
Hard pagefault count of hardest hit process:          206
Number of processes hit:                              21


_________________________________________________________________________________________________________
 PER CPU DATA
_________________________________________________________________________________________________________
CPU 0 Interrupt cycle time (s):                       6,835529
CPU 0 ISR highest execution time (µs):                5092,892628
CPU 0 ISR total execution time (s):                   0,265423
CPU 0 ISR count:                                      37516
CPU 0 DPC highest execution time (µs):                6347,578526
CPU 0 DPC total execution time (s):                   1,971829
CPU 0 DPC count:                                      347286
_________________________________________________________________________________________________________
CPU 1 Interrupt cycle time (s):                       2,988353
CPU 1 ISR highest execution time (µs):                24,759615
CPU 1 ISR total execution time (s):                   0,000445
CPU 1 ISR count:                                      95
CPU 1 DPC highest execution time (µs):                586,934295
CPU 1 DPC total execution time (s):                   0,030677
CPU 1 DPC count:                                      2115
_________________________________________________________________________________________________________
CPU 2 Interrupt cycle time (s):                       3,408913
CPU 2 ISR highest execution time (µs):                0,0
CPU 2 ISR total execution time (s):                   0,0
CPU 2 ISR count:                                      0
CPU 2 DPC highest execution time (µs):                3899,095353
CPU 2 DPC total execution time (s):                   0,091795
CPU 2 DPC count:                                      6124
_________________________________________________________________________________________________________
CPU 3 Interrupt cycle time (s):                       3,062101
CPU 3 ISR highest execution time (µs):                0,0
CPU 3 ISR total execution time (s):                   0,0
CPU 3 ISR count:                                      0
CPU 3 DPC highest execution time (µs):                497,689904
CPU 3 DPC total execution time (s):                   0,021402
CPU 3 DPC count:                                      1495
_________________________________________________________________________________________________________

Reply
Options

7 Posts

10-09-2019

Poland

23 Signins

161 Page Views

  • Posts: 7
  • Registered: ‎10-09-2019
  • Location: Poland
  • Views: 161
  • Message 42 of 258

Re: Lenovo Y540 Audio desync (Audio ahead of Video)

2019-10-14, 14:54 PM

for HD audio ISR problem please try to set driver in MSI Mode. 
https://forums.guru3d.com/threads/windows-line-based-vs-message-signaled-based-interrupts.378044/

I forgot that i also did it, manually via register. 

Reply
Options

40 Posts

09-24-2019

United States of America

70 Signins

621 Page Views

  • Posts: 40
  • Registered: ‎09-24-2019
  • Location: United States of America
  • Views: 621
  • Message 43 of 258

Re: Lenovo Y540 Audio desync (Audio ahead of Video)

2019-10-14, 15:24 PM
Nop, i didnt because i undervolt my laptop and my temperature are pretty nice, so if i use that new power plan i sure my laptop will always work at 4.0 GHz *thats my processor static speed while gaming) and i dont want to waste electric energy and pushing to the limit my laptop when i doing soft tasks like Word or Powerpoint.

But yes, i think all the problem is related with a power plan, because the laptop drivers get confuse trying to change into power plan modes in order to use and not use gpu dedicated for some processes.
Reply
Options

40 Posts

09-24-2019

United States of America

70 Signins

621 Page Views

  • Posts: 40
  • Registered: ‎09-24-2019
  • Location: United States of America
  • Views: 621
  • Message 44 of 258

Re: Lenovo Y540 Audio desync (Audio ahead of Video)

2019-10-14, 15:33 PM
The most importan is that we need to avoid be crazy with this problem because i have read that some people even disable a lot of important drivers and tools of win 10 just to low a little bit the latency.
People in other furum tell that downgrading to win 7, 8, 8,1 has fix immediately the issue, or even using ubuntu.
Reply
Options

47 Posts

10-10-2019

Bosnia and Herzegovina

109 Signins

961 Page Views

  • Posts: 47
  • Registered: ‎10-10-2019
  • Location: Bosnia and Herzegovina
  • Views: 961
  • Message 45 of 258

Re: Lenovo Y540 Audio desync (Audio ahead of Video)

2019-10-14, 15:38 PM

It's clearly a software issue and Lenovo must acknowledge it and push out updates! None of the fixes work. I just don't get how so many people have audio problems, and Lenovo and all reviewers on Youtube and other sites don't mention a single word about this.

Reply
Options

2 Posts

10-14-2019

Belarus

2 Signins

41 Page Views

  • Posts: 2
  • Registered: ‎10-14-2019
  • Location: Belarus
  • Views: 41
  • Message 46 of 258

Re: Lenovo Y540 Audio desync (Audio ahead of Video)

2019-10-14, 17:56 PM

gtx 1660ti

Same problem. Hope Lenovo will fix it ASAP. 

Really curious why no one is talking about this problem though.

Reply
Options

28 Posts

10-04-2019

Poland

52 Signins

319 Page Views

  • Posts: 28
  • Registered: ‎10-04-2019
  • Location: Poland
  • Views: 319
  • Message 47 of 258

Re: Lenovo Y540 Audio desync (Audio ahead of Video)

2019-10-14, 21:39 PM

Guys, try this solution.

1. Download and install the latest BIOS from Lenovo's site (BHCN32WW). Its mandatory step

2. Go to BIOS and select "Configuration" by pressing the right arrow key

3. Select "Slow slew rate for ia domain" (arrow down) and press enter

4. Select "fast/8" and press enter

5. Press the F10 key to reboot


Solution provided by berniwa helped a lot of people including me with desync and crackling issue.

Here is the forum topic https://forums.lenovo.com/t5/Gaming-Laptops/Lenovo-Y540-crackling-sound/td-p/4448320/page/20

Reply
Options

47 Posts

10-10-2019

Bosnia and Herzegovina

109 Signins

961 Page Views

  • Posts: 47
  • Registered: ‎10-10-2019
  • Location: Bosnia and Herzegovina
  • Views: 961
  • Message 48 of 258

Re: Lenovo Y540 Audio desync (Audio ahead of Video)

2019-10-15, 5:07 AM

Thanks got the suggestion, but I tried that fix already and it didn't help. After the BIOS update fast/8 was already selected. Crackling and desync was still there. 

Reply
Options

28 Posts

10-04-2019

Poland

52 Signins

319 Page Views

  • Posts: 28
  • Registered: ‎10-04-2019
  • Location: Poland
  • Views: 319
  • Message 49 of 258

Re: Lenovo Y540 Audio desync (Audio ahead of Video)

2019-10-15, 5:22 AM
Ye I had the same. Then reinstalled the system and It started to work. Additionally I didn't install Nvidia HD audio to avoid any driver conflicts.
Reply
Options

5 Posts

10-14-2019

Brazil

22 Signins

122 Page Views

  • Posts: 5
  • Registered: ‎10-14-2019
  • Location: Brazil
  • Views: 122
  • Message 50 of 258

Re: Lenovo Y540 Audio desync (Audio ahead of Video)

2019-10-15, 13:39 PM

This solutions works, but the problem come again after a restart. One thing that I realized, if you pause the video (Twitch) and play again, the video freezes some seconds while the audio runs normally.

Reply
Forum Home

Community Guidelines

Please review our Guidelines before posting.

Learn More

Check out current deals!

Go Shop
X

Save

X

Delete

X

No, I don’t want to share ideas Yes, I agree to these terms