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Hi , I installed osx Lion 10.7.0 on my PC.

Everything is fine except my graphics. I have Sapphire 4850.

By default i get 1024x768 on my display which is capable of 1920x1080 @ 60

I modified the ATI4800 kext with my device id 0x9442 , now i keep getting "Out of Range" message on my display

Safe mode also gives this error. seems as if it is trying to display at some resolution which my monitor is not capable of displaying

 

 

Is it possible to set a screen resoluiton from single user mode. as this is only place i can get to

Well the reason why you're stuck at the 1024x768 resolution is because you don't have resolution changing working nor do y ou have acceleration either. Netkas provides exotic patches for the 4xxx radeon cards which you could find on his site at
http://www.netkas.org
which when installed should give you your native resolution plus acceleration. Don't forget to repair disk permissions after anytime you edit a kext.

Hi :)

 

 

@ artur-pt

 

for ATI4800Controller.kext, you do just put your ID but for ATIRadeonX2000.kext, you need to put you ID in info.plist and you need to patch ATIRadeonX2000 from the folder "MacOS". ;)

 

@ gauviz

 

I have a hd 4830, which is the little sister of the HD 4850, you can use the kexts that I put in the link on this topic

 

:)

Cool working now. Though only with VGA not in DVI.

Currently have 1360 x 768 @ 74.9 working

My display is capable of 1920 x 1080 @ 60

but none of the 60Hz resolutions are working only 75Hz

ones are working except 1920x1080 as my display only supports 60Hz

Tried Switchresx but it doesn't seems to be doing anything

SOsGt.png

 

Below is the extract for my monitor EDID

DDC block report generated by SwitchResX version 4.2.1 for display
BenQ G2220HD

-----------------------------------------------------
------------------- RAW DATA ------------------------
-----------------------------------------------------
  0  1  2  3  4  5  6  7  8  9  A  B  C  D  E  F
-----------------------------------------------------
0  | 00 FF FF FF FF FF FF 00 09 D1 20 78 45 54 00 00
1  | 1C 13 01 03 0E 30 1B 78 2E E6 15 A6 55 49 99 27
2  | 13 50 54 BF EF 96 71 00 71 4F 81 C0 81 00 81 40
3  | 95 00 95 0F B3 00 02 3A 80 18 71 38 2D 40 58 2C
4  | 45 00 DE 0D 11 00 00 1E 00 00 00 FF 00 41 37 39
5  | 30 31 30 35 37 30 32 36 0A 20 00 00 00 FD 00 32
6  | 4C 18 53 15 00 0A 20 20 20 20 20 20 00 00 00 FC
7  | 00 42 65 6E 51 20 47 32 32 32 30 48 44 0A 00 09
-----------------------------------------------------
<  00FFFFFF FFFFFF00 09D12078 45540000 1C130103 0E301B78 2EE615A6 55499927 135054BF EF967100 714F81C0 81008140 9500950F B300023A 80187138 2D40582C 4500DE0D 1100001E 000000FF 00413739 30313035 37303236 0A200000 00FD0032 4C185315 000A2020 20202020 000000FC 0042656E 51204732 32323048 440A0009 >
-----------------------------------------------------
{  0x00, 0xFF, 0xFF, 0xFF,  0xFF, 0xFF, 0xFF, 0x00,  0x09, 0xD1, 0x20, 0x78,  0x45, 0x54, 0x00, 0x00,  0x1C, 0x13, 0x01, 0x03,  0x0E, 0x30, 0x1B, 0x78,  0x2E, 0xE6, 0x15, 0xA6,  0x55, 0x49, 0x99, 0x27,  0x13, 0x50, 0x54, 0xBF,  0xEF, 0x96, 0x71, 0x00,  0x71, 0x4F, 0x81, 0xC0,  0x81, 0x00, 0x81, 0x40,  0x95, 0x00, 0x95, 0x0F,  0xB3, 0x00, 0x02, 0x3A,  0x80, 0x18, 0x71, 0x38,  0x2D, 0x40, 0x58, 0x2C,  0x45, 0x00, 0xDE, 0x0D,  0x11, 0x00, 0x00, 0x1E,  0x00, 0x00, 0x00, 0xFF,  0x00, 0x41, 0x37, 0x39,  0x30, 0x31, 0x30, 0x35,  0x37, 0x30, 0x32, 0x36,  0x0A, 0x20, 0x00, 0x00,  0x00, 0xFD, 0x00, 0x32,  0x4C, 0x18, 0x53, 0x15,  0x00, 0x0A, 0x20, 0x20,  0x20, 0x20, 0x20, 0x20,  0x00, 0x00, 0x00, 0xFC,  0x00, 0x42, 0x65, 0x6E,  0x51, 0x20, 0x47, 0x32,  0x32, 0x32, 0x30, 0x48,  0x44, 0x0A, 0x00, 0x09,  }
-----------------------------------------------------
Valid EDID block: checksum passed
-----------------------------------------------------
------------------- MAIN EDID BLOCK -----------------
-----------------------------------------------------
EDID Version........1.3
Manufacturer........BNQ
Product Code........8312 (2078) (7820)
Serial Number.......00005445
Manufactured........Week 28 of year 2009
Max H Size..........48 cm
Max V Size..........27 cm
Gamma...............2.20
Display Supported Features:
---------------------------
Power Management: Active off
Display type:
-------------
RGB color display
Display is non continuous frequency
Default color space is sRGB standard
Preferred timing mode includes Native Pixel Format

Input signal & sync:
--------------------
Analog input with:  0.700V / 0.300V
Sync on green
Separate Sync
Composite Sync

Color info:
-----------
Red x = 0.651  Green x = 0.286  Blue x = 0.152  White x = 0.313
Red y = 0.334  Green y = 0.600  Blue y = 0.075  White y = 0.329
Established Timings:
--------------------
 720 x 400 @ 70Hz
 640 x 480 @ 60Hz
 640 x 480 @ 67Hz
 640 x 480 @ 72Hz
 640 x 480 @ 75Hz
 800 x 600 @ 56Hz
 800 x 600 @ 60Hz
 800 x 600 @ 72Hz
 800 x 600 @ 75Hz
 832 x 624 @ 75Hz
 1024 x 768 @ 60Hz
 1024 x 768 @ 70Hz
 1024 x 768 @ 75Hz
 1280 x 1024 @ 75Hz
Manufacturer Reserved Timings:
------------------------------
 1152 x 870 @ 75Hz
 Unknown timing 3
 Unknown timing 5
 Unknown timing 6
Standard Timing Identification:
-------------------------------
#0: 1152 x 720 @ 60Hz  (7100)
#1: 1152 x 864 @ 75Hz  (714F)
#2: 1280 x 720 @ 60Hz  (81C0)
#3: 1280 x 800 @ 60Hz  (8100)
#4: 1280 x 960 @ 60Hz  (8140)
#5: 1440 x 900 @ 60Hz  (9500)
#6: 1440 x 900 @ 75Hz  (950F)
#7: 1680 x 1050 @ 60Hz  (B300)
Monitor Description blocks:
---------------------------
Descriptor #0 - Timing definition:
Mode = 1920 x 1080 @ 60.000Hz
 Pixel Clock............. 148.50 MHz  Non-Interlaced
					  Horizontal  Vertical
 Active.................. 1920 pixels  1080 lines
 Front Porch.............   88 pixels	 4 lines
 Sync Width..............   44 pixels	 5 lines
 Back Porch..............  148 pixels    36 lines
 Blanking................  280 pixels    45 lines
 Total................... 2200 pixels  1125 lines
 Scan Rate...............  67.500 kHz   60.000 Hz
 Image Size..............  478 mm   269 mm
 Border..................    0 pixels	 0 lines
  Sync: Digital separate with
   * Positive vertical polarity
   * Positive horizontal polarity
Descriptor #1 - Serial number:
  A7901057026
Descriptor #2 - Monitor limits:
 Horizontal frequency range.......24-83 kHz
 Vertical frequency range.........50-76 Hz
 Maximum bandwidth unspecified
Descriptor #3 - Monitor name:
  BenQ G2220HD

os x itself recognizes the resolution so I'm a bit stumped as well as to why your monitor goes out of range at it's native resolution. May I suggest if you might have another 1080p monitor somewhere nearby you test it out and see if it yeilds the same results.

EDID= http://en.wikipedia.org/wiki/EDID

 

IMO, it would be interesting if in Windows it automatically adjust the way it should. The only way I ever toasted an EDID was by flashing the rom on my XT1900 to the model above had to reboot using floppy and type commands after the beep to restore rom. You couldn't see the display lol

 

Hope thats not the case but ruling it out would be good.

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