Can I update my mac to latest OS; having dual monitor issues (spec included)
I've using my Mac Pro happily since 2011 with no majors issues.
However, yesterday one of my dual monitors (left screen) just randomly switched off.
I thought the fuse had gone so replaced it. It didn't switch on.
I swapped the cables around and the monitor worked fine on the right side, so it wasn't the fuse and the monitor works fine.
I unplugged and replugged everything, reset PRAM and nothing changed.
Then out of nowhere both monitors came back on again. After a little while the left one switches off again. Then after a few minutes it came back on to two monitors working.
I have no idea why this is happening. Any ideas?
I was thinking of finally updating the OS. However, when I do the auto update it says no new software available.
I've never updated because all my apps work fine; video editing, music etc.
But maybe it's time to update. Can I update on this 2010/2011 hardware ? And how?
10.6.8 Snow Leopard
Model Name: Mac Pro
Model Identifier: MacPro5,1
Processor Name: 6-Core Intel Xeon
Processor Speed: 2.93 GHz
Number Of Processors: 2
Total Number Of Cores: 12
L2 Cache (per core): 256 KB
L3 Cache (per processor): 12 MB
Memory: 16 GB
Processor Interconnect Speed: 6.4 GT/s
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)
Display Serial Number: 2A0408CE6JL
Main Display: Yes
Mirror: Off
Online: Yes
Rotation: Supported
Connection Type: DisplayPort
LED Cinema Display:
Resolution: 2560 x 1440
Pixel Depth: 32-Bit Color (ARGB8888)
Display Serial Number: 2A0408C36JL
Mirror: Off
Online: Yes
Rotation: Supported
Connection Type: DisplayPort
Mac Pro