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Old 02-10-2017, 06:31 AM   #51
Jouni
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1. OS Build Info

OS Build: 10.0.14393.0 (Debug = False)
OS Build Label: 14393.rs1_release.161220-1747

2. Monitors Connected:

SMS24A650 Manufacturer: SAM ProductCode: 082A Serial: HVRB900381 Built: 38/2011
SMS24A650 Manufacturer: SAM ProductCode: 082A Serial: HVRB900369 Built: 38/2011

3. CPU

CPU: Intel(R) Core(TM) i7-6600U CPU @ 2.60GHz

4. GPU Details

Graphics: Intel(R) HD Graphics 520 (Intel Corporation)
Graphics Driver: 21.20.16.4534 Dated 2016/10/07
Graphics: DisplayLink USB Device (DisplayLink)
Graphics Driver: 8.1.843.0 Dated 2016/12/01
Graphics: DisplayLink USB Device (DisplayLink)
Graphics Driver: 8.1.843.0 Dated 2016/12/01
Graphics: DisplayLink USB Device (DisplayLink)
Graphics Driver: 8.1.843.0 Dated 2016/12/01
Graphics: DisplayLink USB Device (DisplayLink)
Graphics Driver: 8.1.843.0 Dated 2016/12/01

The Intel internal graphics is used to take the load off the CPU when streaming through Open Broadcast Studio.

5. CPU Usages
WUDF mainly 5-35%

6. Total CPU Usage
20%-100%

7. Analysis

7a: Content fully static: WUDF idles at around 0%-2% CPU usage.

7b: Same as 7a

7c: When just moving the mouse around the displays WUDF uses around 6-12% of the CPU.

7d: When moving a window around WUDF usage goes up to around 20-28% of the CPU.

7e: Not installed

7f: Full screen video on:
Opera = 15-22%
Edge = 14- 20%


7g: No games to test.

8. Display Link Driver Installed

DisplayLink Graphics Driver (8.1.848.0) on 2017/01/10 Status is Installed
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Old 02-13-2017, 04:59 AM   #52
boardshorts
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Default Also happens with multiple documents in Word - 6 external screens

1. Windows 10 Build Number
OS: Microsoft Windows 10 Home (x64-based PC), No Service Pack, English
OS Build: 10.0.14393.0 (Debug = False)
OS Build Label: 14393.rs1_release.161220-1747

2. Enumerate each display, its resolution and if it is connected to the graphics card or a USB adapter:

Manufacturer: AUO ProductCode: 139E Serial: 0 Built: 1/2009 - 1600x900 - AMD Radeon 6600M
ACER V243HQ Manufacturer: ACR ProductCode: 00B0 Serial: LG8080074221 Built: 20/2011 -1920x1080 -USB\\VID_17E9&PID_0360
ACER V243HQ Manufacturer: ACR ProductCode: 00B0 Serial: LG8080074221 Built: 20/2011 -1920x1080 -USB\\VID_17E9&PID_0360
ACER V243HQ Manufacturer: ACR ProductCode: 00B0 Serial: LG8080074221 Built: 19/2011 -1920x1080 -USB\\VID_17E9&PID_0360
ACER V243HQ Manufacturer: ACR ProductCode: 00B0 Serial: LG8080074221 Built: 20/2011 -1920x1080 -USB\\VID_17E9&PID_0360
ACER V243HQ Manufacturer: ACR ProductCode: 00B0 Serial: LG8080074221 Built: 20/2011 -1920x1080 -USB\\VID_17E9&PID_0360
ACER V243HQ Manufacturer: ACR ProductCode: 00B0 Serial: LG8080074221 Built: 20/2011 -1920x1080 -USB\\VID_17E9&PID_0360

3. The CPU ***full*** name including the numbers after iX (available from System_Details.txt as well). Generation is more important to understand the architecture rather than if it is an i3 or i7.

CPU: Intel(R) Core(TM) i7-2630QM CPU @ 2.00GHz
Number of Cores: 8


4. The GPU details (available from System_Details.txt as well).

Graphics: AMD Radeon 6600M and 6700M Series (Advanced Micro Devices, Inc.)
Graphics Driver: 15.201.1151.1008 Dated 2015/11/04
Graphics: DisplayLink USB Device (DisplayLink)
Graphics Driver: 8.1.843.0 Dated 2016/12/01
Graphics: DisplayLink USB Device (DisplayLink)
Graphics Driver: 8.1.843.0 Dated 2016/12/01
Graphics: DisplayLink USB Device (DisplayLink)
Graphics Driver: 8.1.843.0 Dated 2016/12/01
Graphics: DisplayLink USB Device (DisplayLink)
Graphics Driver: 8.1.843.0 Dated 2016/12/01
Graphics: DisplayLink USB Device (DisplayLink)
Graphics Driver: 8.1.843.0 Dated 2016/12/01
Graphics: DisplayLink USB Device (DisplayLink)
Graphics Driver: 8.1.843.0 Dated 2016/12/01
WEI Base Score is 4.5, CPU 7.4, RAM 7.4, GPU 4.5, Gaming 6.1, Disk 7.9


5. What you include in your CPU usage (which processes: overall, WUDF, DWM...). Note: I really need WUDF more than the rest as DWM is a Windows process).

6. The value of CPU being used.
Total CPU
Total % but when I look at the resource monitor it is spread across all 8 cores
7. What happens on ALL indirect displays (indirect = through USB). If you have Task Manager on an indirect display, then it is NOT idling as content changes!!! This is really one of the most important point. Here are some examples:
7a. Content fully static: nothing changes at all, and I mean nothing, not the clock, not the mouse pointer.
With 3 x USB\\VID_17E9&PID_0360 connected 5%
With 6 x USB\\VID_17E9&PID_0360 connected fluctuates 12%
7b. Some little area changes: like for instance you only have some numbers on the clock or the numbers in Task Manager.
7c. Only the mouse pointer across indirect displays. (if you do this, please do NOT use the mouse trail accessibility feature or this is the same use case as 7b).
With 3 x USB\\VID_17E9&PID_0360 connected fluctuates from 30-50% with 6 Word documents open on these screens
With 6 x USB\\VID_17E9&PID_0360 connected fluctuates from 30-70% with 6 Word documents open on these screens

7d. Moving a window. Indicate an idea of the size of the window... I mean moving a 10x10 pixels windows is obviously fundamentally different to moving a 4kx4k one.
With 3 x USB\\VID_17E9&PID_0360 connected fluctuates from 30-50% with 6 Word documents open on these screens
With 6 x USB\\VID_17E9&PID_0360 connected fluctuates from 30-100% with 6 Word documents open on these screens, mouse and keyboard stutter and Windows starts reporting USB device errors

WUDF is always the top of usage list. Screens are landscape with each document occupying have of one screen. ie 960x1080
7e. Playing video on VLC
Not tested.
7f. Playing video on a browser (and the value is constant across browsers). Our driver CANNOT differentiate which browser is playing.
Not Tested.
7g. Game, full screen or windowed? Games do NOT use the same as video playback.
No games.
8. Which version of DisplayLink driver you are running as, like Windows builds, they don't all have the same features. (available from System_Details.txt as well).
Graphics Driver: 8.1.843.0 Dated 2016/12/01

With 6 x USB\\VID_17E9&PID_0360 connected and the CPU above peaking across all threads when we resize, edit and copy/paste the CPU temp rises to over 90 degrees C and the CPU throttles and the documents drop back to the laptop. It is as though Windows has reset the USB port/s.

Current workaround is to use only 3 of the 6 x USB\\VID_17E9&PID_0360 until patch available. The 6 x USB\\VID_17E9&PID_0360 have worked well for years under Windows 7 and then Windows 10 and started misbehaving with the Windows Anniversary edition.
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Old 02-14-2017, 03:46 PM   #53
Domdus
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Default Possibly found a temporay workaround/fix for lagging

Hi all,

I'm following this thread since the lag & high load issues started with the Win 10 Anniversary Update and still waiting for the solution.

I have the same mouse lag (= screen update lag) that has been reported by others, and it especially appears when I launch my eclipse development environment or watch youtube videos etc. on the Displaylink screen.

Now the lag fix for me was the processes priority:

In the task manager, I go to services and I always see a single WUDFHost.exe, which behaves completely normal and has a process priority set to HIGH by default it seems.

As soon as the Displaylink monitor is attached I have a second WUDFHost.exe process in the task manager, so 2 in total.
This second "new" one always uses a lot more RAM than the first (40 - 50 MB) and causes high CPU load depending on the Displaylink screen changes.
Now I changed the proccess priority for this one from default NORMAL to HIGH and the mouse lag (screen update lag) was gone completely.

Note this does not lower the CPU load or something, but there is simply no screen lag any longer.
I hope this works for someone else.

Keep in mind that the task manager keeps this information only for the current session, the priority setting is back to normal at the next start of windows. There are some tools and command line scripts or batch jobs to trigger this for each startup.

#UPDATE#
Setup: Dell XPS 13 9350 + FHD Monitor (USB Displaylink) + FHD Monitor (USB C/HDMI via DA200)

Best Regards

Last edited by Domdus; 02-15-2017 at 03:22 PM. Reason: Setup Info
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Old 02-15-2017, 09:13 AM   #54
Novi
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Quote:
Originally Posted by Domdus View Post
Hi all,

I'm following this thread since the lag & high load issues started with the Win 10 Anniversary Update and still waiting for the solution.

I have the same mouse lag (= screen update lag) that has been reported by others, and it especially appears when I launch my eclipse development environment or watch youtube videos etc. on the Displaylink screen.

Now the lag fix for me was the processes priority:

In the task manager, I go to services and I always see a single WUDFHost.exe, which behaves completely normal and has a process priority set to HIGH by default it seems.

As soon as the Displaylink monitor is attached I have a second WUDFHost.exe process in the task manager, so 2 in total.
This second "new" one always uses a lot more RAM than the first (40 - 50 MB) and causes high CPU load depending on the Displaylink screen changes.
Now I changed the proccess priority for this one from default NORMAL to HIGH and the mouse lag (screen update lag) was gone completely.

Note this does not lower the CPU load or something, but there is simply no screen lag any longer.
I hope this works for someone else.

Keep in mind that the task manager keeps this information only for the current session, the priority setting is back to normal at the next start of windows. There are some tools and command line scripts or batch jobs to trigger this for each startup.

Best Regards
This dramatically reduced my input and system lag. It is not completely gone, but is by far not as noticeable as before.

Dell XPS13 and D3100 (2 x 2560x1440 screens)
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Old 02-15-2017, 09:17 AM   #55
AlbanRampon
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Hi Domdus, and all,

Because of the delay in getting the development build out, I am changing strategy a bit.
I should have an 8.2 Alpha available around Friday and I'll create a dedicated forum board for it as it includes more than this.

Some priority changes has been done in the driver. There are other priority changes that can be done but they are not straight forward: the OS scheduler will penalise you with lower priority than low if you claim highest all the time... Unless, like some game, you decide to decrease the "responsiveness" index but we're not ready to do that.

The alpha has other changes around smoothness. We've been running them this week over dual-4K display setups.
As soon as the 8.2 Alpha is available, I will add a link to the thread about it.

Kind regards,
Alban
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Old 02-17-2017, 05:01 PM   #56
AlbanRampon
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Good afternoon everyone,

Here are links to the 8.2 Beta forum I created for the feedback on that version.

8.2 Beta 1 - 8.2.1336 17th February 2017 to get the file with its limitations.
Please create a new thread in 8.2 Beta for Windows with your feedback about that version.

The focus for that version has been addressing performance first. There is also CPU reduction for some tasks. The reduction will depend on the application being used. For instance, Windows Photo Viewer sends full screen updates even when displaying a static photo... Improving the behaviour with non-optimal applications will come later.

I'd like to attract your attention to the known bugs listed under the limitations.

Have a nice weekend,
Alban
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Old 02-24-2017, 12:22 PM   #57
Davers
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Default Fixed for me

The service was taking an average of 20% cpu for me until I disabled it then rebooted and then enabled it again as manual. I noticed that the original startup mode was manual (triggered) so I suppose it was constantly being triggered. Note that your displaylink monitors will not work after the disable reboot but set the service to manual and reboot again and you should be good to go.

I suppose this is more of a workaround but I have not seen any negative consequences yet so ignorance is bliss.
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Old 02-27-2017, 08:36 AM   #58
fstx
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Default

Quote:
Originally Posted by AlbanRampon View Post
Hello,

If you don't use the video, then a high load would have a different reason. What is high?
Ethernet and audio are also going through the same physical DisplayLink chip.
Also, whether you use a video output or not, the chip is on the USB so Windows will talk to it.

Kind regards,
Alban
High load is anything that spins up the CPU fan. But I was relating behaviour that seems wrong to me. Your forum does not allow me easily include a screenshot, so I just paste some of the events from procmon below. Procmon keeps rolling with events like these,
about 5 loops per second.

10:31:07.7011935 WUDFHost.exe 13160 RegOpenKey HKLM SUCCESS Desired Access: Maximum Allowed, Granted Access: Read
10:31:07.7012609 WUDFHost.exe 13160 RegQueryKey HKLM SUCCESS Query: HandleTags, HandleTags: 0x0
10:31:07.7013444 WUDFHost.exe 13160 RegOpenKey HKLM\Software SUCCESS Desired Access: Read
10:31:07.7014379 WUDFHost.exe 13160 RegCloseKey HKLM SUCCESS
10:31:07.7015207 WUDFHost.exe 13160 RegQueryKey HKLM\SOFTWARE SUCCESS Query: HandleTags, HandleTags: 0x0
10:31:07.7016392 WUDFHost.exe 13160 RegOpenKey HKLM\SOFTWARE\DisplayLink SUCCESS Desired Access: Read
10:31:07.7017298 WUDFHost.exe 13160 RegCloseKey HKLM\SOFTWARE SUCCESS
10:31:07.7018942 WUDFHost.exe 13160 RegQueryKey HKLM\SOFTWARE\DisplayLink SUCCESS Query: HandleTags, HandleTags: 0x0
10:31:07.7020779 WUDFHost.exe 13160 RegOpenKey HKLM\SOFTWARE\DisplayLink\NivoManager NAME NOT FOUND Desired Access: Read
10:31:07.7021925 WUDFHost.exe 13160 RegCloseKey HKLM\SOFTWARE\DisplayLink SUCCESS
10:31:07.7026075 WUDFHost.exe 13160 RegOpenKey HKU\S-1-5-19 SUCCESS Desired Access: Read/Write
10:31:07.7027246 WUDFHost.exe 13160 RegQueryKey HKU\S-1-5-19 SUCCESS Query: HandleTags, HandleTags: 0x0
10:31:07.7029168 WUDFHost.exe 13160 RegOpenKey HKU\S-1-5-19\Software SUCCESS Desired Access: Read
10:31:07.7029901 WUDFHost.exe 13160 RegCloseKey HKU\S-1-5-19 SUCCESS
10:31:07.7030455 WUDFHost.exe 13160 RegQueryKey HKU\S-1-5-19\SOFTWARE SUCCESS Query: HandleTags, HandleTags: 0x0
10:31:07.7031177 WUDFHost.exe 13160 RegOpenKey HKU\S-1-5-19\SOFTWARE\DisplayLink SUCCESS Desired Access: Read
10:31:07.7032101 WUDFHost.exe 13160 RegCloseKey HKU\S-1-5-19\SOFTWARE SUCCESS
10:31:07.7032718 WUDFHost.exe 13160 RegQueryKey HKU\S-1-5-19\SOFTWARE\DisplayLink SUCCESS Query: HandleTags, HandleTags: 0x0
10:31:07.7035197 WUDFHost.exe 13160 RegOpenKey HKU\S-1-5-19\SOFTWARE\DisplayLink\NivoManager NAME NOT FOUND Desired Access: Read
10:31:07.7036576 WUDFHost.exe 13160 RegCloseKey HKU\S-1-5-19\SOFTWARE\DisplayLink SUCCESS
10:31:07.7038434 WUDFHost.exe 13160 RegOpenKey HKLM SUCCESS Desired Access: Maximum Allowed, Granted Access: Read
10:31:07.7041241 WUDFHost.exe 13160 RegQueryKey HKLM SUCCESS Query: HandleTags, HandleTags: 0x0
10:31:07.7045469 WUDFHost.exe 13160 RegOpenKey HKLM\Software SUCCESS Desired Access: Read
10:31:07.7047906 WUDFHost.exe 13160 RegCloseKey HKLM SUCCESS
10:31:07.7049175 WUDFHost.exe 13160 RegQueryKey HKLM\SOFTWARE SUCCESS Query: HandleTags, HandleTags: 0x0
10:31:07.7051393 WUDFHost.exe 13160 RegOpenKey HKLM\SOFTWARE\DisplayLink SUCCESS Desired Access: Read
10:31:07.7052162 WUDFHost.exe 13160 RegCloseKey HKLM\SOFTWARE SUCCESS
10:31:07.7052990 WUDFHost.exe 13160 RegQueryKey HKLM\SOFTWARE\DisplayLink SUCCESS Query: HandleTags, HandleTags: 0x0
10:31:07.7055088 WUDFHost.exe 13160 RegOpenKey HKLM\SOFTWARE\DisplayLink\NivoManager NAME NOT FOUND Desired Access: Read
10:31:07.7056492 WUDFHost.exe 13160 RegCloseKey HKLM\SOFTWARE\DisplayLink SUCCESS
10:31:07.7058230 WUDFHost.exe 13160 RegOpenKey HKU\S-1-5-19 SUCCESS Desired Access: Read/Write
10:31:07.7059278 WUDFHost.exe 13160 RegQueryKey HKU\S-1-5-19 SUCCESS Query: HandleTags, HandleTags: 0x0
10:31:07.7060480 WUDFHost.exe 13160 RegOpenKey HKU\S-1-5-19\Software SUCCESS Desired Access: Read
10:31:07.7062546 WUDFHost.exe 13160 RegCloseKey HKU\S-1-5-19 SUCCESS
10:31:07.7063505 WUDFHost.exe 13160 RegQueryKey HKU\S-1-5-19\SOFTWARE SUCCESS Query: HandleTags, HandleTags: 0x0
10:31:07.7065572 WUDFHost.exe 13160 RegOpenKey HKU\S-1-5-19\SOFTWARE\DisplayLink SUCCESS Desired Access: Read
10:31:07.7067363 WUDFHost.exe 13160 RegCloseKey HKU\S-1-5-19\SOFTWARE SUCCESS
10:31:07.7068287 WUDFHost.exe 13160 RegQueryKey HKU\S-1-5-19\SOFTWARE\DisplayLink SUCCESS Query: HandleTags, HandleTags: 0x0
10:31:07.7073661 WUDFHost.exe 13160 RegOpenKey HKU\S-1-5-19\SOFTWARE\DisplayLink\NivoManager NAME NOT FOUND Desired Access: Read
10:31:07.7075117 WUDFHost.exe 13160 RegCloseKey HKU\S-1-5-19\SOFTWARE\DisplayLink SUCCESS
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Old 03-01-2017, 07:22 AM   #59
fstx
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I installed DisplayLink 8.2 Beta For Windows 8.2 Beta 1.exe, and WUDFHost.exe is still misbehaving.
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Old 03-06-2017, 10:33 PM   #60
bjallen13
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Default Experiencing the same issues.

High Memory usage through the DisplayLink Driver. Has there been a fix or update to this issue yet? Thanks!
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