Windows 8 DisplayLink Issue

[nicolewells]

Hi Ruud,

Nice of you to point me at that however my laptop (ASUS G74SX) has a Fresco Logic rather than the Intel USB 3.0 chipset. I had already installed the latest driver for this chipset (being 3.5.100) from the Fresco Logic website.

Fresco Logic xHCI (USB3) Controller FL1000 Series driver information :-
> Windows Installed Version - 3.5.93.0 (02/11/2012)
> Updated from Web Version - 3.5.100.0 (03/07/2013)

This morning I got so annoyed with the continuous screen refreshing that I attempted another Display Link driver refresh. With the Targus device disconnected I removed and reinstalled the Display Link drivers by removing the existing (7.3M1), running the DL install cleaner and then installing the newest (7.4M0) driver. I then rebooted before reconnecting the Targus USB3.0 device.

Following the initial auto-screen-setup I then checked all related devices to un-tick the power save options - making sure that I was also on performance power mode.

This made no difference it seems as I still suffer the black outs and have had to once again unplug the Targus, reducing me back down to 2 screens again.

This is a stupid situation to be in given my usage of Windows 7 with Display Link for over a year now without issue only to get this issue with Windows 8.

Thanks,
Nicole xx

[Ruud]

Hi Nicole,

Sorry to hear that your dock isn't behaving as it should be.

Yesterday I also disabled some BIOS USB features.. haven't had any black-out since.
Since I also uninstalled/disabled other stuff, it cannot be sure it was the USB settings, but for me this more 'minimal' setup pays of so far.

Best regards,
Ruud

update: I just had a black-out.. but this time it took about 1,5 day which is probably my record.

[JamesH]

Hi,

Please try applying the attached registry patch which may help resolve the issues you are seeing. I would suggest a reboot after applying this.

Note that this won't affect any other host controllers - this is specific to those in your Asus notebook.

Thanks,
James

[nicolewells]

Hi James,

Thanks I will definitely give it a try this evening, so am I right in thinking that this parameter will disable the standby (U1 and U2) link states?

Thanks,
Nicole xx

[JamesH]

Hi,

Yes that's right.

Let me know how you get on.

Thanks,
James

[nicolewells]

Hi James,

Well, I'm not going to tempt fate but I will say that this is the longest that I've gone without the Targus USB 3.0 Display Link device dropping out. Currently it's been a good (literally) 4 hours since I performed the registry update and rebooted my laptop with it plugged back in. Will confirm if tomorrow goes well.

Thanks,
Nicole xx

[nicolewells]

Well, I'm going to put my neck on the line and say that the Fresco LPM power state parameter fix looks to be working.

Nice one James!!

Thanks,
Nicole xxx