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Unable to see screen for switching mac to pc

D

dtechlogic

macrumors regular
Original poster
May 15, 2011
203
3
Hi Guys,

I have monitor Samsung Syncmaster P2770HD. I could not able to see the screen were you can switch between windows and mac when holding the option key.
 
Which graphics card are you using? And is it a genuine Apple one or a (flashed) PC card?
 
I am using the ATi Radeon 5870 which was bought from apple for about $470 dollars. But i kind of have to guess when to press left to choose windows.
 
I am a little confuse here. When you says mac 1.1 will that mean the latest version or the older version. I have the latest version Westmere 8 core. so what number will that be or version.
 
dtechlogic said:
I am a little confuse here. When you says mac 1.1 will that mean the latest version or the older version. I have the latest version Westmere 8 core. so what number will that be or version.
Click to expand...

hmm...

does it show the grey apple logo on start up when you boot it normally?
 
i don't see the apple logo. come up. I have contacted apple and they gave me apple care phone number. I do still have ati radeon 5770 so i might test that one also. But i upgraded to 5870 for better performance on gaming for the windows side. I don't know if this is a big problem. I am going to test hdmi also to see if i get the same result. Oh well at least it is not dead. Will it be a video card problem or just something not set correctly.
 
Did you see the boot screen with the 5770?

I know some monitors take so long to wake up from sleep that they can actually miss the boot screen.
 
Shut down computer. Hold option key and turn on computer.

If you have the latest (under warranty), contact Apple for support.
 
Hi,

Yes it is under warranty. Brand new mac pro. No the 5870 was installed when i purchased it and they included the 5770 since i pay full price for the 5870 instead of half. You might be right that it is not waking up on time. It falls asleep when it find out there is no signal. I have another 23 inch monitor and i will test it. Right now i am work so i can't test it yet.
 
i dont think its the monitor. it sounds like the same problem people have when they use the not officially supported 6xxx cards made for windows pcs, but i dont know why it would have that issue with the stock mac 5870
 
once i get home i will try my ati radeon hd 5770 and see if i get the same error. If not it might be something else.
 
Hi Guys,

I think i got screw over well but i still save money i guess. The only problem is that i am not able to get the screen were you can switch between windows and mac. But everything works fine. I have a xfx Hd 5870. I have two regular HDMI input on it with 2 DVI. The only problem is that i don't get the screen were i can choose windows or mac. but the rest works okay. I thought out the video card and put in the hd 5770 and i was able to see that screen. So i guess the video card i have is not genuine apple video card. How can you tell if it is genuine apple. i don't mind it since i got the hang of it already. But advice.
 
You really got screwed. That's a normal PC card, worth much less than the $470 you paid. And it explains perfectly why you don't get a boot screen.

What do you mean you "bought it from Apple"? Apple doesn't sell 3rd party XFX cards.

If you can, return it. If you can't return it, you can at least flash it so it will work better.
 
It is already flash with an efi BIOS. It work normal. Except during boot up that's it I don't see the screen
 
First you bought a 5870 from Apple for $470, and now you're talking about a flashed XFX card.

Are you hiding any other COMPLETELY CRUCIAL AND RELEVANT information?

You know what? I don't care, I'm done here.
 
Sorry,

Here are the facts. I bought a mac pro and upgraded the video card to a 5870 instead of using the 5770..

ActionableMango said:
First you bought a 5870 from Apple for $470, and now you're talking about a flashed XFX card.

Are you hiding any other COMPLETELY CRUCIAL AND RELEVANT information?

You know what? I don't care, I'm done here.
Click to expand...
 
Here are the information on my video card.

ATI Radeon HD 5870:

Chipset Model: ATI Radeon HD 5870
Type: GPU
Bus: PCIe
Slot: Slot-1
PCIe Lane Width: x16
VRAM (Total): 1024 MB
Vendor: ATI (0x1002)
Device ID: 0x6898
Revision ID: 0x0000
ROM Revision: 113-C0780C-194
EFI Driver Version: 01.00.436
Displays:
SyncMaster:
Resolution: 1920 x 1080 @ 60 Hz
Pixel Depth: 32-Bit Color (ARGB8888)
Display Serial Number: H1AK500000
Main Display: Yes
Mirror: Off
Online: Yes
Rotation: Supported
Display Connector:
Status: No Display Connected
Display Connector:
Status: No Display Connected
 
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