2.4b2 Forgets Display Positions

dispnev · 06-09-2015, 03:30 PM

I was stuck on Mountain Lion because of Displaylink. Finally, I couldn't wait anymore, and upgraded Mountain Lion to Yosemite and Displaylink 2.4b1. While it was working okay, my Mac would just shut off a few times per week. POOF, rebooting. I looked in the log and it appears it's with 'window server', which points me to probably Displaylink.

I put up with it for a month. I frequently checked this site for new drivers and found the new one yesterday -- 2.4b2. I installed it, hoping it might help. Now, however, every time I reboot I have to re-position the monitors. I guess it's better than just randomly shutting the Mac off, but I don't know if the shut off problem is even fixed in 2.4b2.

So, while I'm still trying out beta2, is there a way to put the monitor positions back to where I had them without opening Preferences>>Displays>> and dragging them back to where they belong?

Is there some way to put it in a script?
Like:
set monitor1 3434, 0, 1920x1200, portrait
etc.

Then I could just double-click it every morning. That wouldn't be horrible.

If it matters, I have a Macbook pro, yosemite, a 30-inch on displayport, and 2x 24-inch monitors (one portrait, one landscape) on displaylink adapters, for a total of 4 monitors.

dispnev · 06-09-2015, 03:45 PM

So I'm not the only one with this problem, but according to the version notes it should no longer be a problem in 2.4b2. But it *is* still a problem for me.

------------------------------------------------------------------------------------------------
Issues fixed since version 2.3
------------------------------
Workarounds for some long standing issues on OS X 10.9 and later:
- Display arrangement is not kept when using 2 or more DisplayLink displays. (16112)
------------------------------------------------------------------------------------------------

dispnev · 06-10-2015, 03:38 PM

I have to go to preferences and drag them around after every reboot.

Carlo, can you share the 'workaround' for the display arrangements?

dispnev · 06-10-2015, 04:21 PM

So, I've been experimenting.

Apparently, OSX stores an arrangement for every combination of displays you have connected, and if OSX detects that you have monitors A, B, C connected, it will apply the ABC arrangement. If you add a monitor, say D, it will look for an arrangement setting for ABCD.

Apparently, what is happening on my system, and maybe everyone with this trouble, is that OSX is seeing a new Displaylink monitor or monitors, but is not getting the ID of the new monitor, so OSX just arranges them how it sees fit.

If I unplug one of my monitors, and replug it, my desired monitor arrangement comes back.

Why didn't it apply the saved arrangement when it boots? Apparently, it's getting the monitor IDs from Displaylink too late.

My guess is that simply delaying the connection of the DisplayLink monitors until the IDs are ready to give to OSX, could fix the problem. Or even just delay the whole process x (configurable) seconds.

I have an SSD, so parts of boot up may be way ahead of the USB devices. I wonder if booting on the old spinner might eliminate the problem too? I've spent too much time on this already to do that experiment though.

Carlo · 06-11-2015, 08:10 AM

Hi dispnev,

With the 2.4 workaround you should not be seeing the OS X bug that mixes up the monitors.
But there may be other reasons for a lost layout. For example problems in reading reliably the monitor's EDID or simply a bug in our SW.

Can you send to us the logs collected just after a wrong layout has come up?

The log tool is at http://www.displaylink.com/support/ticket.php?id=269
You can attach the logs here or send them through http://www.displaylink.com/support/ask_question.php

Thank you,
Carlo

hitmusic100 · 06-12-2015, 06:25 PM

thank you so much dispnev and Carlo

I am having precisely the same problem with Yosemite forgetting my display arrangement after reboot

. I have 3 monitors plus my MacBookPro inbuilt monitor. Am using this:

http://www.displaylink.com/shop/hot_...php#dell-d3100

Am using the latest Yosemite and Displaylink 2.4b1.

Please correct -I am wasting so much time arranging displays

Carlo - pls let me know what you need from me - thanks

hitmusic100 · 06-14-2015, 01:27 AM

log attached (am using 3 displays as per photo: error occurs when switching from Lenovo T530 laptop to MacBookPro early 2011)

06-09-2015, 03:30 PM	#1
dispnev Junior Member Join Date: Oct 2013 Posts: 17	2.4b2 Forgets Display Positions I was stuck on Mountain Lion because of Displaylink. Finally, I couldn't wait anymore, and upgraded Mountain Lion to Yosemite and Displaylink 2.4b1. While it was working okay, my Mac would just shut off a few times per week. POOF, rebooting. I looked in the log and it appears it's with 'window server', which points me to probably Displaylink. I put up with it for a month. I frequently checked this site for new drivers and found the new one yesterday -- 2.4b2. I installed it, hoping it might help. Now, however, every time I reboot I have to re-position the monitors. I guess it's better than just randomly shutting the Mac off, but I don't know if the shut off problem is even fixed in 2.4b2. So, while I'm still trying out beta2, is there a way to put the monitor positions back to where I had them without opening Preferences>>Displays>> and dragging them back to where they belong? Is there some way to put it in a script? Like: set monitor1 3434, 0, 1920x1200, portrait etc. Then I could just double-click it every morning. That wouldn't be horrible. If it matters, I have a Macbook pro, yosemite, a 30-inch on displayport, and 2x 24-inch monitors (one portrait, one landscape) on displaylink adapters, for a total of 4 monitors. Last edited by dispnev; 06-09-2015 at 03:35 PM.

06-09-2015, 03:45 PM	#2
dispnev Junior Member Join Date: Oct 2013 Posts: 17	So I'm not the only one with this problem, but according to the version notes it should no longer be a problem in 2.4b2. But it is still a problem for me. ------------------------------------------------------------------------------------------------ Issues fixed since version 2.3 ------------------------------ Workarounds for some long standing issues on OS X 10.9 and later: - Display arrangement is not kept when using 2 or more DisplayLink displays. (16112) ------------------------------------------------------------------------------------------------ Last edited by dispnev; 06-09-2015 at 04:01 PM.

06-11-2015, 08:10 AM	#5
Carlo Mac Team Join Date: Feb 2009 Posts: 606	Hi dispnev, With the 2.4 workaround you should not be seeing the OS X bug that mixes up the monitors. But there may be other reasons for a lost layout. For example problems in reading reliably the monitor's EDID or simply a bug in our SW. Can you send to us the logs collected just after a wrong layout has come up? The log tool is at http://www.displaylink.com/support/ticket.php?id=269 You can attach the logs here or send them through http://www.displaylink.com/support/ask_question.php Thank you, Carlo Last edited by Carlo; 06-11-2015 at 08:11 AM. Reason: Clarify

06-10-2015, 03:38 PM	#3
dispnev Junior Member Join Date: Oct 2013 Posts: 17	I have to go to preferences and drag them around after every reboot. Carlo, can you share the 'workaround' for the display arrangements?

06-10-2015, 04:21 PM	#4
dispnev Junior Member Join Date: Oct 2013 Posts: 17	So, I've been experimenting. Apparently, OSX stores an arrangement for every combination of displays you have connected, and if OSX detects that you have monitors A, B, C connected, it will apply the ABC arrangement. If you add a monitor, say D, it will look for an arrangement setting for ABCD. Apparently, what is happening on my system, and maybe everyone with this trouble, is that OSX is seeing a new Displaylink monitor or monitors, but is not getting the ID of the new monitor, so OSX just arranges them how it sees fit. If I unplug one of my monitors, and replug it, my desired monitor arrangement comes back. Why didn't it apply the saved arrangement when it boots? Apparently, it's getting the monitor IDs from Displaylink too late. My guess is that simply delaying the connection of the DisplayLink monitors until the IDs are ready to give to OSX, could fix the problem. Or even just delay the whole process x (configurable) seconds. I have an SSD, so parts of boot up may be way ahead of the USB devices. I wonder if booting on the old spinner might eliminate the problem too? I've spent too much time on this already to do that experiment though.