So Follow on post from my Posts in the RTX Boot screen thread
I was playing with my Xserve1,1 when firing up rEFInd I noticed something different...
this is the Xserves about rEFInd page
View attachment 802028
notice how it says UGA Draw thats what we would expect from a mac of this age
but it clicked that I dont remember seeing that on my MacPro5,1 or MacBook5,2 so I fired up rEFInd on those machines
here is the MacPro5,1s output
View attachment 802034
my MacBook5,2 is also the same
View attachment 802036
"Graphics Output (UEFI)" thats not UGA... thats GOP I would say?! this has been staring us in the face all this time and im surprised no one noticed it
it may explain why the MacPro5,1 (and MacBook5,2) can display a windows EFI Boot screen (if you try and boot windows in EFI mode on say a MacPro3,1 it will look like it freezes at the boot picker but windows is actually booting, however the EFI of the 3,1 does not support the display protocols the Windows boot loader use. sadly I dont own an early EFI64 machine like a MP3,1 to test what rEFInd says)
its all very curious and confusing LOL as we know the MP5,1 can/does do UGA but it seems like it also does GOP sort of?
BTW heres a drivers output from the Xserve1,1
Code:
T D
D Y C I
R P F A
V VERSION E G G #D #C DRIVER NAME IMAGE NAME
== ======== = = = == == =================================== ===================
41 00000001 D - - 1 - National(R) PC87427 SIO Driver 61DE2CF9-7F53-4A10
5D 00000010 ? - - - - VGA Class Driver BF89F10D-B205-474F
68 00000001 D - - 1 - IDE Controller Init Driver F3790689-FB90-4479
6A 00000001 ? - - - - SATA Controller Init Driver 0325B5A1-0937-4A4F
6C 00000010 D - - 1 - PCI AHCI Driver 95AF7E4D-C45D-47FF
75 00000010 B - - 1 42 PCI Bus Driver 93B80004-9FB3-11D4
77 00000010 B - - 1 1 PCI ATA/ATAPI Bus Driver 69FD8E47-A161-4550
78 00000010 B - - 1 6 ISA Bus Driver 240612B5-A063-11D4
79 00000010 B - - 2 2 ISA Serial Driver 93B80003-9FB3-11D4
7B 00000010 D - - 2 - Simple Network Protocol Driver A2F436EA-A127-4EF8
7C 00000010 D - - 2 - BSDP Base Code Driver 77475D4F-7965-4038
7D 00000010 D - - 2 - Apple NetServices Protocol Driver 7A5CFD97-8F27-458A
7E 03040000 B X X 2 2 Intel(R) PRO/1000 3.4.00 07B70E53-B0EE-4DB3
7F 00000010 D - - 4 - Usb Uhci Driver 2FB92EFA-2EE0-4BAE
80 00000010 B - - 4 7 USB Bus Driver 240612B7-A063-11D4
81 00000010 D - - 1 - Usb Bot Mass Storage Driver B40612B9-A063-11D4
82 00000010 ? - - - - Usb Cbi0 Mass Storage Driver A3527D16-E6CC-42F5
83 00000010 ? - - - - <UNKNOWN> B40612B2-A063-11D4
84 00000010 D - - 1 - Generic USB Mass Storage Driver A5C6D68B-E78A-4426
85 00000010 D - - 1 - Usb Keyboard Driver 2D2E62CF-9ECF-43B7
86 00000010 D - - 1 - Usb Mouse Driver 2D2E62AA-9ECF-43B7
87 00000010 D - - 1 - <UNKNOWN> 335B0F6A-FCBD-402A
88 00000010 D - - 1 - Apple HID Interface Driver 07B37006-9302-408E
89 00000010 D - - 1 - Apple Front Panel Controller 8C0514CC-22DE-4937
8B 00000010 D - - 3 - HFS File System Driver 4CF484CD-135F-4FDC
8E 00000010 D - - 1 - Platform Console Management Driver 51CCF399-4FDF-4E55
8F 00000010 D - - 1 - Platform Console Management Driver 51CCF399-4FDF-4E55
90 00000010 B - - 1 1 Console Splitter Driver 408EDCEC-CF6D-477C
91 00000010 B - - 1 1 Console Splitter Driver 408EDCEC-CF6D-477C
92 00000010 B - - 1 1 Console Splitter Driver 408EDCEC-CF6D-477C
93 00000010 ? - - - - Console Splitter Driver 408EDCEC-CF6D-477C
97 00000010 D - - 1 - UGA Console Driver CCCB0C28-4B24-11D5
98 00000010 B - - 2 2 Serial Terminal Driver 9E863906-A40F-4875
99 00000010 D - - 7 - Generic Disk I/O Driver CA261A26-7718-4B9B
9A 00000010 D - - 1 - FAT File System Driver 5058F21C-BC34-11D4
9B 00000010 B - - 2 4 Partition Driver 43B93232-AFBE-11D4
A8 00000010 D - - 1 - FireWire Ohci Driver 0412A7A1-C050-42C2
AA 00000010 ? - - - - FireWire Device Driver 6074610C-93C6-4A50
AB 00000010 D - - 1 - Apple KCS Driver D4C44A4B-FA94-4DC4
D1 00100091 D - - 1 - ATI Radeon UGA Driver 01.00.145
D2 02010300 B X X 1 1 LSI Logic Fusion MPT SAS Driver