Mountain Lion Problems - Page 9

briangig · 11-14-2012, 04:42 AM

chandler767,

I had the same thought, and was curious all day what type of workaround could get this to work. Glad to report that for the first time in a few months I have my DisplayLink device working great...

This whole problem is bizarre, because the drivers seemed to work for a month after I got it, but then started having the Finder crash issue, Login screen missing, and Flash crashing in the browser problem.

So here is what I did (this just happend, I may recreate everything later to give more details).

Install driver, reboot. Do not plug in displayport device yet (I did, but I guessed where the login button was, not sure if the results will be the same if device is not plugged in)

After login, plug in device and monitor.

Open terminal, and type:

Code:

sudo kextload /System/Library/Extensions/DisplayLinkDriver.kext

Logout, Login and you should be good to go.

If this doesnt work, try (your system will probably crash/Kernel Panic):

Code:

sudo kextunload /System/Library/Extensions/DisplayLinkDriver.kext

Then startup again, login and run the kextload command above, logout and login.

If you need to reboot, try unplugging the USB adapter, then rebooting or shutting down. After login plug it in.

This entire set of instructions may be as simple as: Do not boot with the device plugged in, if you can you are missing the login buttons, and can guess, just plug in device, reload kext and logout/login.

I take no responsibility for the accuracy of the above..it may just be my luck..this is a '12 13" MBP, 10.8.2.

Let me know how this works for everyone..very hacky and a PITA, but maybe DL can get a workaround going in the meantime.

Carlo · 11-14-2012, 06:19 AM

Quote:

Originally Posted by briangig

chandler767,

Code:

sudo kextunload /System/Library/Extensions/DisplayLinkDriver.kext

[...]

I take no responsibility for the accuracy of the above..it may just be my luck..this is a '12 13" MBP, 10.8.2.

Let me know how this works for everyone..very hacky and a PITA, but maybe DL can get a workaround going in the meantime.

Tried to unload the kext on my vintage MBP 3.1 and got a kernel panic in com.apple.iokit.IOGraphicsFamily.

Dynamic graphics kext unloading is an old limitation in OS X, it seems to have been resolved in ML but it's evidently not reliable.
But the idea is interesting, we'll investigate further.

Cheers,
Carlo

docLocke · 11-14-2012, 06:11 PM

One hidden, hard-to-find FAQ item explains that DisplayLink drivers do not run in virtual machines (like VMware, Parallels).
I guess they don't. They don't even warn you--just install, and take it all down to a BSOD.
Days and days to rebuild drive from scratch.
Thanks.
I believe J5Create.com has functioning drivers (and support USB 3.).

chandler767 · 11-14-2012, 09:20 PM

Hey guys,
I FINALLY found a way to fix the issue with the display link monitors! Full use and all with ML and the 10.8 driver. It requires you to use a script that I have uploaded here:
http://www.c-bit.co/resources/DisplayLink.scpt
To set it up watch this video:
http://youtu.be/XJLN3LSYtMQ

**IMPORTANT Notes:**
-Always unplug your DisplayLink monitor before turning on your computer or the bug will still occur. Only plug in after you login!
-The script may still require a password after login for some people. Type it in and hit ok.
-Sorry if the video is a tad blurry.

kaci · 11-15-2012, 08:42 PM

I have 150 users currently using display link and half of them have already been upgraded to Mountain Lion 10.8.2. Every user that has experienced an issue has had 7-10 crashes directly caused by the display link driver. Do we have an ETA other than sometime in Q1? I can provide as many crash reports as necessary to aid in a fix.

Unfortunately, I cannot go through Chandler767's fix with all of my users. It's fine for a one person but it's not a temp-fix for a whole office.

Parch · 11-21-2012, 03:45 PM

chandler767, thanks for fixing the problem (for me at least). Display Link should give you some $$ for your time

chandler767 · 11-21-2012, 10:31 PM

Quote:

Originally Posted by Parch

chandler767, thanks for fixing the problem (for me at least). Display Link should give you some $$ for your time

Ha, I wish.

The_Flatline · 11-25-2012, 07:22 PM

I'm just tried briangig and chandler767's solution of the kextload and it appears to have solved the issues of Finder crashing, Login box not working and Flash crashing.

However the third screen (second external as I already have one out the mini-DisplayPort on my iMac 21.5") still isn't displaying any image and if I go to Displays in System Preferences it doesn't show anything.

The device I'm using is USB 2 HDMI from Maplin, and the product code it gives is UHD-100 U3 from running system_profiler SPUSBDataType on Terminal.

andynormancx · 11-26-2012, 09:33 AM

I've fixed my Mountain Lion problems.

I've bought a 27 inch monitor and put my DisplayLink adapter in a drawer. Thanks for nothing DisplayLink

Couldn't wait any longer.

MyDisplayLinkDoesntWork · 11-26-2012, 01:34 PM

Any fix for Projector issues?

11-14-2012, 04:42 AM	#81
briangig Junior Member Join Date: Nov 2012 Posts: 11	chandler767, I had the same thought, and was curious all day what type of workaround could get this to work. Glad to report that for the first time in a few months I have my DisplayLink device working great... This whole problem is bizarre, because the drivers seemed to work for a month after I got it, but then started having the Finder crash issue, Login screen missing, and Flash crashing in the browser problem. So here is what I did (this just happend, I may recreate everything later to give more details). Install driver, reboot. Do not plug in displayport device yet (I did, but I guessed where the login button was, not sure if the results will be the same if device is not plugged in) After login, plug in device and monitor. Open terminal, and type: Code: sudo kextload /System/Library/Extensions/DisplayLinkDriver.kext Logout, Login and you should be good to go. If this doesnt work, try (your system will probably crash/Kernel Panic): Code: sudo kextunload /System/Library/Extensions/DisplayLinkDriver.kext Then startup again, login and run the kextload command above, logout and login. If you need to reboot, try unplugging the USB adapter, then rebooting or shutting down. After login plug it in. This entire set of instructions may be as simple as: Do not boot with the device plugged in, if you can you are missing the login buttons, and can guess, just plug in device, reload kext and logout/login. I take no responsibility for the accuracy of the above..it may just be my luck..this is a '12 13" MBP, 10.8.2. Let me know how this works for everyone..very hacky and a PITA, but maybe DL can get a workaround going in the meantime. Last edited by briangig; 11-14-2012 at 05:09 AM.

11-14-2012, 06:11 PM	#83
docLocke Junior Member Join Date: Dec 2011 Posts: 1	DisplayLink drivers BSOD (Win 7 - Parallels) One hidden, hard-to-find FAQ item explains that DisplayLink drivers do not run in virtual machines (like VMware, Parallels). I guess they don't. They don't even warn you--just install, and take it all down to a BSOD. Days and days to rebuild drive from scratch. Thanks. I believe J5Create.com has functioning drivers (and support USB 3.).

11-14-2012, 09:20 PM	#84
chandler767 Junior Member Join Date: Aug 2012 Posts: 27	DiplayLink Mountain Lion Fix Hey guys, I FINALLY found a way to fix the issue with the display link monitors! Full use and all with ML and the 10.8 driver. It requires you to use a script that I have uploaded here: http://www.c-bit.co/resources/DisplayLink.scpt To set it up watch this video: http://youtu.be/XJLN3LSYtMQ IMPORTANT Notes: -Always unplug your DisplayLink monitor before turning on your computer or the bug will still occur. Only plug in after you login! -The script may still require a password after login for some people. Type it in and hit ok. -Sorry if the video is a tad blurry. Last edited by chandler767; 11-23-2012 at 12:42 AM.

11-15-2012, 08:42 PM	#85
kaci Junior Member Join Date: Nov 2012 Posts: 3	Updates? I have 150 users currently using display link and half of them have already been upgraded to Mountain Lion 10.8.2. Every user that has experienced an issue has had 7-10 crashes directly caused by the display link driver. Do we have an ETA other than sometime in Q1? I can provide as many crash reports as necessary to aid in a fix. Unfortunately, I cannot go through Chandler767's fix with all of my users. It's fine for a one person but it's not a temp-fix for a whole office.

11-21-2012, 03:45 PM	#86
Parch Junior Member Join Date: Nov 2012 Posts: 2	Thanks chandler767! It works! chandler767, thanks for fixing the problem (for me at least). Display Link should give you some $$ for your time

11-25-2012, 07:22 PM	#88
The_Flatline Junior Member Join Date: Nov 2012 Posts: 1	I'm just tried briangig and chandler767's solution of the kextload and it appears to have solved the issues of Finder crashing, Login box not working and Flash crashing. However the third screen (second external as I already have one out the mini-DisplayPort on my iMac 21.5") still isn't displaying any image and if I go to Displays in System Preferences it doesn't show anything. The device I'm using is USB 2 HDMI from Maplin, and the product code it gives is UHD-100 U3 from running system_profiler SPUSBDataType on Terminal.

11-26-2012, 09:33 AM	#89
andynormancx Junior Member Join Date: Aug 2012 Posts: 9	I've fixed my Mountain Lion problems. I've bought a 27 inch monitor and put my DisplayLink adapter in a drawer. Thanks for nothing DisplayLink Couldn't wait any longer.

11-26-2012, 01:34 PM	#90
MyDisplayLinkDoesntWork Junior Member Join Date: Oct 2012 Posts: 3	Any fix for Projector issues?