Severe screen flashing on 7.4M0 - Page 2

mekul · 09-23-2013, 01:39 AM

Generally for me it happens when using the internet.

Bigger problem for me is the disconnection issues. The dock will lose connectivity consistently throughout the day. We use a number of cloud services so this is a big problem.

I can get around this by using the wifi instead of the dock, but then why did I pay for a dock if this is the solution?

JamesH · 09-23-2013, 02:31 PM

Hi,

The support files tell us that there are usb connection errors which will cause the ethernet connection to drop.

Can you check if you have the latest hub firmware programmed?

Open up device manager, open up Universal Serial Bus controllers and right click on the entry called “Generic SuperSpeed USB Hub”.
Select “Properties”, select “Details”, change “Property” to “Hardware Ids” and the REV_xxxx value will tell you what version of firmware is programmed on the hub.

Let me know what revision is reported.

I'd also suggest trying another USB cable & other USB ports.

It's also worth trying the "System Compatibility Check" option in the DisplayLink debug tool to see if anything is flagged up.

Thanks,
James

rsenio · 09-23-2013, 06:15 PM

I have since uninstalled and gone back to the previous version. I am unable to provide YOUR troubleshooting for you, my laptop needs to work....for work. Sorry.

euitdebos · 09-23-2013, 08:13 PM

I have this as well, mostly it seems when I'm doing a lot of stuff at the same time.

What seems to help is to disconnect, wait a couple of seconds, then reconnect the dock. I In my case it is a Kensington SD3000 connected over a USB 2.0 cable to a Dell 6430u Laptop with Win7x64. USB 3.0 cables don't work, except for a brief moment when I was de-installing the DisplayLink SW to do a clean reinstall. Somewhere during the installation process a USB Driver gets overwritten that causes my USB3 to fail.

JamesH · 09-25-2013, 02:34 PM

Hi,

Which of the issues mentioned here are you seeing?

Thanks,
James

euitdebos · 09-26-2013, 08:21 AM

What I am seeing is just the screen flashing. Ethernet stays connected.

I have noticed some patterns, maybe they are correct, maybe not.

I have a setup on my desktop where I have one big 24inch monitor that I share using an ATEN KVM switch between my laptop+Dock and my Desktop-PC. Whenever I switch from Laptop+Dock to KVM and return to the Laptop+Dock after a while, the screen flashing is much more severe.
The ATEN KVM switch connects/disconnects the USB+MOUSE+Monitor from the Laptop+Dock, because I can hear the "USB Connection" beeps that Windows makes, whenever I switch.

Hope this helps

mekul · 09-27-2013, 03:57 AM

Hi James,

I have usb Hardware ID version 2397 installed.

USB\VID_2109&PID_0811&REV_2397

mekul · 09-27-2013, 04:20 AM

The other unit we have is running REV_2198

What should it be?

JamesH · 09-27-2013, 12:45 PM

Hi,

REV_2198 is the latest version.

You can download it from here:
http://support.toshiba.com/support/m...eeText=3286829

Thanks,
James

JamesH · 09-27-2013, 01:14 PM

Hi,

Just to keep you updated - the issue with flickering is currently under investigation as we've found a reliable way to reproduce this.

I'll post an update again when I know more.

Thanks,
James

09-23-2013, 01:39 AM	#11
mekul Junior Member Join Date: Jun 2013 Posts: 14	Generally for me it happens when using the internet. Bigger problem for me is the disconnection issues. The dock will lose connectivity consistently throughout the day. We use a number of cloud services so this is a big problem. I can get around this by using the wifi instead of the dock, but then why did I pay for a dock if this is the solution?

09-23-2013, 02:31 PM	#12
JamesH Senior Member Join Date: Jan 2012 Posts: 1,523	Hi, The support files tell us that there are usb connection errors which will cause the ethernet connection to drop. Can you check if you have the latest hub firmware programmed? Open up device manager, open up Universal Serial Bus controllers and right click on the entry called “Generic SuperSpeed USB Hub”. Select “Properties”, select “Details”, change “Property” to “Hardware Ids” and the REV_xxxx value will tell you what version of firmware is programmed on the hub. Let me know what revision is reported. I'd also suggest trying another USB cable & other USB ports. It's also worth trying the "System Compatibility Check" option in the DisplayLink debug tool to see if anything is flagged up. Thanks, James

09-23-2013, 06:15 PM	#13
rsenio Junior Member Join Date: Dec 2012 Posts: 15	I have since uninstalled and gone back to the previous version. I am unable to provide YOUR troubleshooting for you, my laptop needs to work....for work. Sorry.

09-23-2013, 08:13 PM	#14
euitdebos Junior Member Join Date: Aug 2013 Posts: 2	I have this as well, mostly it seems when I'm doing a lot of stuff at the same time. What seems to help is to disconnect, wait a couple of seconds, then reconnect the dock. I In my case it is a Kensington SD3000 connected over a USB 2.0 cable to a Dell 6430u Laptop with Win7x64. USB 3.0 cables don't work, except for a brief moment when I was de-installing the DisplayLink SW to do a clean reinstall. Somewhere during the installation process a USB Driver gets overwritten that causes my USB3 to fail.

09-25-2013, 02:34 PM	#15
JamesH Senior Member Join Date: Jan 2012 Posts: 1,523	Hi, Which of the issues mentioned here are you seeing? Thanks, James

09-26-2013, 08:21 AM	#16
euitdebos Junior Member Join Date: Aug 2013 Posts: 2	What I am seeing is just the screen flashing. Ethernet stays connected. I have noticed some patterns, maybe they are correct, maybe not. I have a setup on my desktop where I have one big 24inch monitor that I share using an ATEN KVM switch between my laptop+Dock and my Desktop-PC. Whenever I switch from Laptop+Dock to KVM and return to the Laptop+Dock after a while, the screen flashing is much more severe. The ATEN KVM switch connects/disconnects the USB+MOUSE+Monitor from the Laptop+Dock, because I can hear the "USB Connection" beeps that Windows makes, whenever I switch. Hope this helps

09-27-2013, 03:57 AM	#17
mekul Junior Member Join Date: Jun 2013 Posts: 14	Hi James, I have usb Hardware ID version 2397 installed. USB\VID_2109&PID_0811&REV_2397

09-27-2013, 04:20 AM	#18
mekul Junior Member Join Date: Jun 2013 Posts: 14	The other unit we have is running REV_2198 What should it be?

09-27-2013, 12:45 PM	#19
JamesH Senior Member Join Date: Jan 2012 Posts: 1,523	Hi, REV_2198 is the latest version. You can download it from here: http://support.toshiba.com/support/m...eeText=3286829 Thanks, James

09-27-2013, 01:14 PM	#20
JamesH Senior Member Join Date: Jan 2012 Posts: 1,523	Hi, Just to keep you updated - the issue with flickering is currently under investigation as we've found a reliable way to reproduce this. I'll post an update again when I know more. Thanks, James