Screen Sharing issues with ML and SL with dual displays??

Question

Level 1

31 points

Screen Sharing issues with ML and SL with dual displays??

Don't know if this is a ML issue or was present in Lion (which I never upgraded to)

Setup...

Old setup was 2010ish MBP and only 2006 iMac. Both with SL 10.6.8 and both have two monitors...no issues.

Upgraded to ML on the MBP on release. Realtively painless process. I tried screen sharing today and I get odd responses with the MBP to the iMac. Just so everyone knows, screen 1 is the main iMac screen and screen 2 is the additional monitor. When showing both screens I could see all screen realestate. However, when I changed to only display screen 1 I started having issues. I couldn't get the entire screen to fit within the window nor scroll to show areas not displayed. Sometimes switching between fit in window and no fit, I would get a blank screen. Screen 2 only displayed and all is fine. I noticed on screen 1 that there was a little black bar or open space on the bottom of the window that was exactly the same size that was missing from the top. No ability to fit or scroll would allow the black space to move so that the menu bar on the top of the main monitor would display.

After doing a bit of searching with no luck and scratching my head, I took a look at the Arrangement screen in the display settings. Wouldn't you know it that the main screen (having a smaller resolution than screen 2) was aligned so that the top of each display was even with each other leaving a small space on the bottom of screen 1 compared to screen 2. When I moved screen 1 in the arrangement screen to a more drastic alignment to verify this was the problem...screen sharing crashed when going from both screens to only display screen 1. Tried screen sharing again going from two displays to one, crashed again.

It appears there is some sort of bug or maybe ML and SL screen sharing doesn't like each other when the remote computer has two monitors.

Submitting bug report to Apple but was curious if anyone else has seen this or knows a work around.

Mike

Posted on Jul 31, 2012 5:31 PM

Reply

Answer 1

Aug 17, 2012 11:35 AM in response to Wunderboy

I have a similar configuration (Lion 2011 MBP and SL 2009 iMac w/ second display). After installing the recent Remote Desktop update things went awry when trying to share the iMac SL displays with the MPB Lion.

The displays on the iMac are the same resolution, however the second display physically sits a bit lower than the iMac display, so I had adjusted the arrangement to compensate the different heights. The second display is located physically to the left of the iMac display, but that shouldn't have any effect as far as I'm concerned. Screen sharing had worked in this config until the recent Remote Desktop update (on Lion).

I thought about what you mentioned about the display screen arrangement, so I decided to just test it for myself, arranging both displays side-by-side on the displays arrangement control panel. Surprisingly, it worked!

I do consider the Remote Desktop update to be the culprit and there must be some bug associated with that. I'm getting ready to submit a bug report, so hopefully we'll see a fix soon.

Reply