Help
cancel
Turn on suggestions
Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.
Showing results for 
Search instead for 
Did you mean: 
Anonymous User
Not applicable

‎27-07-2017 10:15

Video horribly distorted when I go full screen on a 2560x1440 iMac (Sierra, 27 inch, late 2009)

Hi,

 

I'm watching on a 27" iMac at 2560x1440. If I make the window bigger than about 2050 pixels in width the picture distorts horribly - completely unwatchable.

 

I've tried it on a separate desktop - no difference.

 

It's an old Mac, late 2009, but running OS/X Sierra. Details below.

 

Hardware Overview:

 

  Model Name: iMac

  Model Identifier: iMac11,1

  Processor Name: Intel Core i7

  Processor Speed: 2.8 GHz

  Number of Processors: 1

  Total Number of Cores: 4

  L2 Cache (per Core): 256 KB

  L3 Cache: 8 MB

  Memory: 8 GB

 

ATI Radeon HD 4850:

 

  Chipset Model: ATI Radeon HD 4850

  Type: GPU

  Bus: PCIe

  PCIe Lane Width: x16

  VRAM (Total): 512 MB

  Vendor: ATI (0x1002)

  Device ID: 0x944a

  Revision ID: 0x0000

  ROM Revision: 113-B9110C-425

  EFI Driver Version: 01.00.383

  Displays:

iMac:

  Display Type: LCD

  Resolution: 2560 x 1440

  Pixel Depth: 32-Bit Color (ARGB8888)

  Main Display: Yes

  Mirror: Off

  Online: Yes

  Rotation: Supported

  Automatically Adjust Brightness: Yes

  Connection Type: DisplayPort

 

0
20 REPLIES 20
Anonymous User
Not applicable

‎05-10-2017 16:04

No, sadly scaling the window doesn’t work either.

I can scale up the window to a point but at about 70-80% of the screen it distorts again. I have been through this with your support but they couldn’t provide a fix and told me to wait for an update.

Hence, I am wondering when to expect this update.
0