Windows 8.1. bug with 7.4m2 doesn't permit connected standby

tuath · 10-15-2013, 05:06 PM

Nope, I can't confirm that it was working with any other version...

I only plugged it into to the displaylink box so that I could use it as a hub for the keyboard, mice and ethernet... The Acer Iconia with Windwows 8.1 RTM doesn't come with inbox drivers for the Z2760 and so the touchscreen didn't work out of the box neither the wifi...

dawser · 11-28-2013, 10:04 PM

I have been able to reproduce this problem with a new Dell Venue 8 Pro and a Plugable 3000 USB 3.0 docking station. Before installing the Displaylink drivers, connected standby would drain less than 1% of the battery per hour. After I installed the drivers, the Intel GPU would never go to sleep, so battery drain would be over 6% per hour while in sleep mode, basically losing half of the battery during the night, while the tablet sleeps.

Running "powercfg.exe /sleepstudy" shows the Intel GPU always running at 100%, while the rest of the system reaches a low power state.

After uninstalling the Displaylink drivers, the problem disappears. The Intel GPU disappears from the report, and battery drain again becomes normal.

It is very easy to reproduce.

I was on Windows 8.1 32-bit with the latest Displaylink drivers (7.4M2), automatically installed by Windows and verified against the downloadable version number. I haven't had any other Displaylink driver on my system before that. The tablet is two weeks old.

Dan · 11-28-2013, 10:40 PM

Thanks dawser! We'll look into it.

yongcat · 12-09-2013, 04:51 PM

Has there been any updates on this issue?

I have the same issue as dawser (Dell Venue 8 Pro also), and a solution would be great!

jeffg · 12-13-2013, 07:09 PM

Same thing for me on my Dell Venue 8 pro. I also see issues on my Yoga 11s with the DisplayLink driver installed. I've even tried with the latest 7.5 M0 driver here:
http://www.displaylink.com/support/sla.php?fileid=103

And still the same thing. Please fix this!

dawser · 12-28-2013, 10:00 AM

Is there any idea of when this will be fixed?

I understand this problem may be hard to fix, but maybe there should be a warning on the product stating these drivers don't work with Windows 8 connected standby. If I had known about this issue I wouldn't have bought it. The adapter works great, but it is hard to justify having a driver installed that eats the battery in hours even with the tablet idle, disconnected from the dock and in sleep mode.

impat100 · 12-31-2013, 05:40 PM

Quote:

Originally Posted by Dan

Thanks dawser! We'll look into it.

Hi there,

Is this issue still being looked at? Any update would be greatly appreciated!

jasperjugan · 01-10-2014, 09:16 AM

Is someone still working on this said issue?

JamesH · 01-19-2014, 02:33 AM

Hi,

Yes we are still investigating this issue.

Will update you when I know more.

Thanks,
James

andy_g · 01-19-2014, 11:54 AM

Hi all

I have the Kensington SD300v and an Asus T100 (new BayTrail Atom) on Windows 8.1 and can confirm connected standby (sleep) was losing 3% or more per hour with the drivers from here installed!

I have just factory reset the T100 and had no issues with connected standby before hooking up the SD3000V and auto installing any drivers for it via Windows but will let you know if I know have issues due to these auto drivers and or your Display link ones.

01-10-2014, 09:16 AM	#8
jasperjugan Junior Member Join Date: Jan 2014 Posts: 3	Is someone still working on this said issue? Last edited by jasperjugan; 01-12-2014 at 11:29 PM. Reason: words

10-15-2013, 05:06 PM	#1
tuath Junior Member Join Date: Sep 2013 Posts: 17	Nope, I can't confirm that it was working with any other version... I only plugged it into to the displaylink box so that I could use it as a hub for the keyboard, mice and ethernet... The Acer Iconia with Windwows 8.1 RTM doesn't come with inbox drivers for the Z2760 and so the touchscreen didn't work out of the box neither the wifi...

11-28-2013, 10:04 PM	#2
dawser Junior Member Join Date: Nov 2013 Posts: 2	I have been able to reproduce this problem with a new Dell Venue 8 Pro and a Plugable 3000 USB 3.0 docking station. Before installing the Displaylink drivers, connected standby would drain less than 1% of the battery per hour. After I installed the drivers, the Intel GPU would never go to sleep, so battery drain would be over 6% per hour while in sleep mode, basically losing half of the battery during the night, while the tablet sleeps. Running "powercfg.exe /sleepstudy" shows the Intel GPU always running at 100%, while the rest of the system reaches a low power state. After uninstalling the Displaylink drivers, the problem disappears. The Intel GPU disappears from the report, and battery drain again becomes normal. It is very easy to reproduce. I was on Windows 8.1 32-bit with the latest Displaylink drivers (7.4M2), automatically installed by Windows and verified against the downloadable version number. I haven't had any other Displaylink driver on my system before that. The tablet is two weeks old.

11-28-2013, 10:40 PM	#3
Dan Banned Join Date: Nov 2009 Posts: 104	Thanks dawser! We'll look into it.

12-09-2013, 04:51 PM	#4
yongcat Junior Member Join Date: Dec 2013 Posts: 1	Has there been any updates on this issue? I have the same issue as dawser (Dell Venue 8 Pro also), and a solution would be great!

12-13-2013, 07:09 PM	#5
jeffg Junior Member Join Date: Dec 2013 Posts: 1	Same thing for me on my Dell Venue 8 pro. I also see issues on my Yoga 11s with the DisplayLink driver installed. I've even tried with the latest 7.5 M0 driver here: http://www.displaylink.com/support/sla.php?fileid=103 And still the same thing. Please fix this!

12-28-2013, 10:00 AM	#6
dawser Junior Member Join Date: Nov 2013 Posts: 2	Is there any idea of when this will be fixed? I understand this problem may be hard to fix, but maybe there should be a warning on the product stating these drivers don't work with Windows 8 connected standby. If I had known about this issue I wouldn't have bought it. The adapter works great, but it is hard to justify having a driver installed that eats the battery in hours even with the tablet idle, disconnected from the dock and in sleep mode.

01-19-2014, 02:33 AM	#9
JamesH Senior Member Join Date: Jan 2012 Posts: 1,523	Hi, Yes we are still investigating this issue. Will update you when I know more. Thanks, James

01-19-2014, 11:54 AM	#10
andy_g Junior Member Join Date: Jan 2014 Posts: 16	Hi all I have the Kensington SD300v and an Asus T100 (new BayTrail Atom) on Windows 8.1 and can confirm connected standby (sleep) was losing 3% or more per hour with the drivers from here installed! I have just factory reset the T100 and had no issues with connected standby before hooking up the SD3000V and auto installing any drivers for it via Windows but will let you know if I know have issues due to these auto drivers and or your Display link ones.