VGA adapter can't handle 1920x1080@60Hz ?

Apples OS update (10.6.6) did not do anything to fix the problem. I hope the nex one will.

Hi.

I've been having the same problem described here. I use a Macbook Air 11,6, with a HP 2309m monitor, 1920x1080, 60Hz resolution.

Most of the time it works just fine, but on occasion, I get the zig-zag distortion, mainly when I am syncing my Blackberry or Ipod.

I hope future software updates correct this issue.

I am also experiencing the display jitters. I have experienced the problem on my LG 24" monitor at home and a Dell 20" monitor at work. If I reduce the 20" from 1600x1200@60Mhz to 1400x1050@60Mhz the jitter goes away. Using MiniDisplay to VGA adapter adapter firmware version 1.03.

I tried the DVI adaptor instead of the VGA and on my Dell monitor the problem disappeared. So far, my impression is that the issue is limited to VGA conversion, and DVI output is problem-free.

Same issue here. The zig zag is pretty frequent and highly distracting.

Using Apple DisplayPort to VGA adapter with Dell 23" S2309Wb monitor at 1920x1080 60Hz with Macbook Air 13" 4gb 256gb 2.13Ghz core 2 duo.

I have purchased a non-apple branded display port to VGA adapter and this worked fine (without zig-zag display issue) but not the two apple adapters that I had purchased in the fault finding process before.

Apple please update the firmware in your Mini Display Port to VGA adapter to fix this issue.

I have the exact same problem with my 13" MBA for both 1920x1080 and 2560x1600 resolutions on my 24" HP and 30" Dell monitors respectively. It's getting pretty annoying, and I didn't notice it at first - I've had my MBA since the new version came out late last year.

FWIW I'm using an Apple Dual-Link DVI connector on my 30" Dell and an Apple Mini DisplayPort to VGA on my HP 24" so it can't just be DVI or VGA or a low quality cable. I think there's something wrong with the video cards on the new model MBAs, unfortunately.

I'm going to search around a bit more and then probably call Apple... 😟

I don't own a MBA myself, but I work at a college, and I've had two speakers come in this week with MBA's who had this same problem. I'm the MBA up to an Epson PowerLite Pro Z8000WUNL projector using the mDP to VGA adapter, and at the highest resolution (which I always run MBP's and other macs on), I get the zig-zag distortion.

This isn't a huge issue for me, because I don't have to worry about it on a daily basis, but I'm positive that there will be more people who come through the school with MBA's, and I'd like to at least know WHY this is happening, and if possible, if it can be fixed.

I too am experiencing this problem with a 2011 Mac Book Pro 15" model. Before buying the new MBP I had a 2009 MBP with NO problems. I'm using the same external monitor and the same Apple DP to VGA adapter that I used on my previous MBP. Again, with the old MBP I had no problems. Now with the new MBP I constantly get the flickering -- toggling the resolution in and out of 1600x1200 sometimes stops it -- unplugging and replugging in the cable sometimes stops it -- otherwise you just wait and pray. This is really REALY bad.

The firmware update for the adapter is at v1.03, and it told me that my adapter was already at 1.03. No good! Something is messed up with the new Macs -- I can only assume that the late 2010 MBAs are sharing some common hardware with the 2011 MBPs.

The good news is that there are reports elsewhere that if you install Windows 7 on the new MBPs there are ZERO Problems under windows 7. That makes it sound like a driver issue. We can only hope!

On a related note, at the office I use an Apple DP to Dual-Link DVI to a 30" 2560x1600 monitor and there was a period where I noticed strange green static on my black terminal windows. I only noticed it for a couple minutes after booting and then it went away -- so I don't know if that is related...

Apple, please fix this -- I use my MBP as a primary system that travels with me from office to home and it's vital that external monitors work optimally!!

Agreed - Apple needs to fix this. I held off returning these two VGA adapters since December because bad video is better than none at all and because Apple presumably said they'd fix it.

It's REALLY annoying.

Which cable are you using between the Apple Mini DisplayPort to Dual-Link DVI Adapter and the DVI-D connector on your 30” Dell monitor?

Hi, same problems here, using Display-Port to VGA with a resolution of 1920x1080 on a Samsung Syncmaster F2380. I found no proper solution to avoid the zig zag lines 😟

Same problem here when connection my Dell 2001FP to my Macbook Air at 1600x1200 through VGA. It seems the zigzag occurs more often the longer it is connected.

As reported above lowering the resolution avoids the problem. Furthermore, if I connect tot a Samsung SyncMaster 2233SN at 1920x1080, the problem is gone as well.