ssc lab

Q: ATI Radeon HD 5770 (monitor) or Graphics Card?

I have been having a problem with 2 of my lab displays. They are several months old. The screens go black and the machine won't wake. The CPU remains on.

I switch the monitor port on my CPU and push it in. The monitor then works, most of the time. I may have to switch several time for it to work. The cable is not loose either (to begin with) I am extra careful with my connections to the CPU and ensure they are as tight as can be due to this issue. They are securely seated in the port and it is always on the same 2 machines.

 

I plan on switching the monitors on both CPU's with different monitors that I know have not had any issue to see if it is the graphics card or not

but thought someone may already be aware and have a solution to the issue.

 

I am running 10.6.8, Snow Leopard.

 

  Model Name:    Mac Pro

  Model Identifier:    MacPro5,1

  Processor Name:    Quad-Core Intel Xeon

  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

 

Monitor Info Below:

ATI Radeon HD 5770:

 

  Chipset Model:    ATI Radeon HD 5770

  Type:    GPU

  Bus:    PCIe

  Slot:    Slot-1

  PCIe Lane Width:    x16

  VRAM (Total):    1024 MB

  Vendor:    ATI (0x1002)

  Device ID:    0x68b8

  Revision ID:    0x0000

  ROM Revision:    113-C0160C-155

  EFI Driver Version:    01.00.436

  Displays:

LED Cinema Display:

  Resolution:    2560 x 1440

  Pixel Depth:    32-Bit Color (ARGB8888)

  Main Display:    Yes

  Mirror:    Off

  Online:    Yes

  Rotation:    Supported

  Connection Type:    DisplayPort

Display Connector:

  Status:    No Display Connected

Display Connector:

  Status:    No Display Connected

 

Has anyone else been having this problem?

Thanks

Posted on Aug 22, 2011 10:48 AM