Mac mini with dual monitors

i'm having the dual 90 degree monitor issue - i have two 24" dell monitors, both work just fine in landscape. if i rotate one everything is fine. when i rotate the second monitor the first works fine but the second doesn't refresh and will eventually revert to landscape. has anyone found a fix for this?

i have a 2011 mac mini server with intel hd 3000 graphics. 8gb ram, 512mb shared memory.

I have the same problem. When I rotated the second monitor to 270, I pushed the 'gather windows' button, so that I could keep the changes and restart, but that did not help, it continued to display the image that was on the screen originally, even after rebooting!

I opened a support case, and they have confirmed it a bug. I was told to "keep checking for software updates and some day it will be resolved". 10.7.3 did not resolve it. Best guess is for everyone to open support cases and see if that puts a little pressure on them to resolve it ???

confirmed that 10.7.3 did not help my situation either. i'll open a support case as well.

i'd like to also note that i've tried swapping cables around and tried different display adapters as well - same results each time.

Yes, me too. I even went straight HDMI w/out converter with the same result. The problem always follows the HDMI port whether it is primar or secondary, left or right. None of that matters.

I know this isn't really a viable solution for most people, but I needed two portrait monitors, so I exchanged and upgraded my Mac Mini for the one with the 6630 graphics card, and it just worked. I'm still pretty disappointed that I had to shell out an extra $200 to fix this problem though... I don't need fancier graphics, more RAM, or a faster processor, I just needed dual portrait monitors.

i was on the phone with apple support today and they told me that there are orientation sensors in the monitors i'm using - dell u2410s which are "not compatible with the software."

i don't entirely buy this because the exact same monitors worked with an older mac mini and portrait orientation works just fine if i'm only rotating one of the monitors. i need to try it with some different monitors and will report my results.

what monitors are people who are experiencing the problem using?

I too have the Dell u2410s. But we have an earlier model Mac Mini attached to the same monitors and it works in dual portrait mode.

today i tried resetting pram as well as performing an smc reset (did both twice) with no effect. i also tried using two different nec monitors with the same effect.

the problem monitor is always attached to the htmi port. i've tried two different hdmi cables from different manufacturers as well as a dvi cable with apple's hdmi->dvi adapter.

what's left? drivers? magical software setting? replace the unit? voodoo?

I am also experiencing this today. The screens are two DELL u2410.

I am also experiencing this with the NEC MultiSync EA232WMi, with a 2011 Mac Mini Server. This is a real pain, hopefully there is going to be a fix in Mountain Lion or a Lion patch.

i have been working with apple support, it looks like they narrowed down the issue but i haven't heard back in a while. here's a quote from the guy who's been fielding the issue:

"I've heard back from engineering, they were requesting the info to make sure this was the issue they were looking at. Currently we are working on the issue. Keep an eye on software updates, there should be a firmware or regular software update to address this in the near future."

so in theory the problem is known and will be fixed but i have no timeframe.

I'm having the exact same issue with the base Mac Mini 2011 running 10.7.3 (purchased today). I'm using dual Dell U2411s. One is connected via a mini-display port to display port cable, the other is via the HDMI to DVI adapter and a DVI cable. The HDMI monitor freezes its state if both monitors are rotated to portrait (90 degrees).

I've seen some reports that playing with the order you rotate monitors or the resolutions can potentially fix the issue, but I haven't had any luck in my unscientific settings tinkering.

billmag,

I fixed it bringing up the display settings and choosing 180 degrees then clicking revert.

Hi Tman1220,

I'm having the same issues here with a Mac Mini mid 2011 with 2.3 GHz i5 and the 6630 Radeon 256MB card.

I've connected two LG Flatron E2290 (the new super thin LED's) and one screen is fuzzy text with pixelation and colors are somewhat off in pictures.

So, actually Apple support sent me your thread, but I'm confused to what you mean by "the mini display adapter Tibet"? What is this adapter and is it going to a DVI connection to your second monitor?

I appreciate your help with this. Thanks.

Carlos