Windows 8 FLASHING Screen

dhodgin · 07-15-2013, 12:47 AM

Same problem for me. the dock works with just usb keyboard, mouse, and 1gb ethernet plugged into it. As soon as i connect an external monitor the secondary display does not turn on and the laptop screen begins flashing on and off repeatedly.

Tried forcing my video to use nvidia card then intel integrated and both do the same thing

as soon as i unplug the monitor the laptop screen stops flashing and works normally.

Ive tried three different external monitors

I've plugged the dock into my home desktop system and installed the latest Lenovo driver and it works no problem on my home desktop with 3 monitors

On ASUS Zenbook UX32VD any external monitor causes the laptop screen to flash repeatedly and the external monitor does not display anything.

Got a replacement unit from Lenovo (refurbished) and it has the exact same problem.

Ive uninstalled all drivers, run the clean utility, and reinstalled the latest lenovo device drivers (v10708 http://support.lenovo.com/en_CA/guid...DocID=UM014961) and then displaylink 7.3M1 and still the same problem on windows 8 on my ASUS Zenbook laptop.

I also flashed the firmware to the 9.28 version while i had the dock attached to my home pc since i could not update it while attached to my laptop it would say no device found. the utility said the firmware upgrade was successful

Home pc runs drivers v10708 and 7.2 I believe. (Which ever displaylink drivers they have integrated with lenovos v10708 software I didn't upgrade to 7.3M1 on home desktop because everything worked fine)

I've set my usb power settings on the laptop power plan to max as well.

no display will work at all

Phil.Baxter · 07-15-2013, 09:01 AM

Strangely, I got in to work this morning and decided to give it another try, guess what, it worked

So, just as a test, I rebooted my laptop, and guess what, it gave me a flashing screen

Although I had it working briefly, it now refuses to work, sigh. Still I had a glimpse at the potential even though it was only for 15 minutes.

Phil.Baxter · 07-16-2013, 01:20 PM

ok, couldnt wait, had to try something, so I forked out and bought two BENQ GW2460 monitors.

It now all works without problems! So I guess it was either the age of the iiyama monitors, or the resolution I was trying drive them at (1600x1200 whereas the BENQ are both at 1920x1080).

I am now *almost* very happy, the only issues I see now are:-

1) the screen on the displayport connection (via DVI cable) has a slight tendency to go slightly dimmer then return to normal brightness. I can live with this, but, it would be good to know why.
2) occasionally (and I have just noticed this) when browsing it appears that the network connection "goes away" i.e. windows thinks it is connected, but, the browser (chrome in this case) thinks that there is no connection. I am not yet fully convinced this is the PR08, but I have yet to see this problem with the network connected directly to my laptop.

Phil.Baxter · 07-25-2013, 12:19 PM

Getting better now, just updated the nvidia drivers to the latest beta (326.19) this seems to have corrected the issue of the displays hanging off the PR08 dimming and brigtening.

Not sure why the nvidia drivers would affect the PR08 (I thought the displaylink used its own drivers), perhaps someone from displaylink could enlighten me.

And for the last few days I havent had the network drop out on me either.

Phil.Baxter · 08-14-2013, 01:04 PM

ok, I just installed a load of updates from Microsoft update site and I now have the flashing screens problem back!

I have uninstalled and reinstalled Graphics drivers as well as the DisplayLink software (both windows 8 and 8.1 rc) and still can't get rid of the flashing screens.

These Microsoft updates have basically created junk out of my two new screens.

I am aware that the flashing screen issue is an ongoing one, but, is there any resolution to this on the horizon?

I must say, when the DisplayLink stuff works its great, but, when for no apparent reason its stops working it is very frustrating.

Any idea which of the updates I/Microsoft installed could be causing this (the attachment lists the ones installed for me by windows this time).

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search
Display Modes
Switch to Linear Mode Hybrid Mode Switch to Threaded Mode

07-15-2013, 12:47 AM	#1
dhodgin Junior Member Join Date: May 2013 Posts: 8	Same problem for me. the dock works with just usb keyboard, mouse, and 1gb ethernet plugged into it. As soon as i connect an external monitor the secondary display does not turn on and the laptop screen begins flashing on and off repeatedly. Tried forcing my video to use nvidia card then intel integrated and both do the same thing as soon as i unplug the monitor the laptop screen stops flashing and works normally. Ive tried three different external monitors I've plugged the dock into my home desktop system and installed the latest Lenovo driver and it works no problem on my home desktop with 3 monitors On ASUS Zenbook UX32VD any external monitor causes the laptop screen to flash repeatedly and the external monitor does not display anything. Got a replacement unit from Lenovo (refurbished) and it has the exact same problem. Ive uninstalled all drivers, run the clean utility, and reinstalled the latest lenovo device drivers (v10708 http://support.lenovo.com/en_CA/guid...DocID=UM014961) and then displaylink 7.3M1 and still the same problem on windows 8 on my ASUS Zenbook laptop. I also flashed the firmware to the 9.28 version while i had the dock attached to my home pc since i could not update it while attached to my laptop it would say no device found. the utility said the firmware upgrade was successful Home pc runs drivers v10708 and 7.2 I believe. (Which ever displaylink drivers they have integrated with lenovos v10708 software I didn't upgrade to 7.3M1 on home desktop because everything worked fine) I've set my usb power settings on the laptop power plan to max as well. no display will work at all

07-15-2013, 09:01 AM	#2
Phil.Baxter Junior Member Join Date: Jul 2013 Posts: 8	Strangely, I got in to work this morning and decided to give it another try, guess what, it worked So, just as a test, I rebooted my laptop, and guess what, it gave me a flashing screen Although I had it working briefly, it now refuses to work, sigh. Still I had a glimpse at the potential even though it was only for 15 minutes.

07-16-2013, 01:20 PM	#3
Phil.Baxter Junior Member Join Date: Jul 2013 Posts: 8	ok, couldnt wait, had to try something, so I forked out and bought two BENQ GW2460 monitors. It now all works without problems! So I guess it was either the age of the iiyama monitors, or the resolution I was trying drive them at (1600x1200 whereas the BENQ are both at 1920x1080). I am now almost very happy, the only issues I see now are:- 1) the screen on the displayport connection (via DVI cable) has a slight tendency to go slightly dimmer then return to normal brightness. I can live with this, but, it would be good to know why. 2) occasionally (and I have just noticed this) when browsing it appears that the network connection "goes away" i.e. windows thinks it is connected, but, the browser (chrome in this case) thinks that there is no connection. I am not yet fully convinced this is the PR08, but I have yet to see this problem with the network connected directly to my laptop.

07-25-2013, 12:19 PM	#4
Phil.Baxter Junior Member Join Date: Jul 2013 Posts: 8	Getting better now, just updated the nvidia drivers to the latest beta (326.19) this seems to have corrected the issue of the displays hanging off the PR08 dimming and brigtening. Not sure why the nvidia drivers would affect the PR08 (I thought the displaylink used its own drivers), perhaps someone from displaylink could enlighten me. And for the last few days I havent had the network drop out on me either.