HP Dreamcolor now working in 10 bit mode?

[billhinge]

Hi

I picked up a 2-3 year old Dreamcolor s/h cheap last week and very nice it is too. I'm currently running on 10.9.x and connected via mini-display port to the dreamcolor (its a mini to displayport cable).

I've set my Monitor Override up to support RGB 4:4:4 only and I'm using SwitchResX to set the colours to = billions using SRGB colour space.

My question is, my monitor is not yet calibrated so when I do the 10 bit ramp test in photoshop there is a very slight amount of graduation across the screen (not as much as before when reporting millions of colours. There is a very noticeable difference between the appearance under millions and billion colours. I was just wondering if the fact that my monitor is uncalibrated is affecting my viewing? I have the HP calibrator on order.

Here it a copy of my EDID 1.4 output

EDID report generated by SwitchResX Version 4.3.6 (Intel - 64-bit) for display HP LP2480zx - forced RGB mode2 (EDID override)


-----------------------------------------------------
------------------- 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 22 F0 F5 26 01 01 01 01
1  | 28 15 01 04 B2 34 20 78 E6 F8 A1 B0 4C 34 B7 26
2  | 0B 50 54 A5 08 00 81 40 81 80 A9 00 A9 40 B3 00
3  | D1 C0 D1 00 01 01 28 3C 80 A0 70 B0 23 40 30 20
4  | 36 00 06 44 21 00 00 1A 00 00 00 FD 00 2F 3D 18
5  | 50 14 00 0A 20 20 20 20 20 20 00 00 00 FC 00 48
6  | 50 20 4C 50 32 34 38 30 7A 78 0A 20 00 00 00 FF
7  | 00 33 43 4D 31 34 30 30 30 30 59 0A 20 20 00 3D

-----------------------------------------------------
 <  00FFFFFF FFFFFF00 22F0F526 01010101 28150104 B2342078 E6F8A1B0 4C34B726 0B5054A5 08008140 8180A900 A940B300 D1C0D100 0101283C 80A070B0 23403020 36000644 2100001A 000000FD 002F3D18 5014000A 20202020 20200000 00FC0048 50204C50 32343830 7A780A20 000000FF 0033434D 31343030 3030590A 2020003D	>

-----------------------------------------------------
 {  0x00, 0xFF, 0xFF, 0xFF,  0xFF, 0xFF, 0xFF, 0x00,  0x22, 0xF0, 0xF5, 0x26,  0x01, 0x01, 0x01, 0x01,  0x28, 0x15, 0x01, 0x04,  0xB2, 0x34, 0x20, 0x78,  0xE6, 0xF8, 0xA1, 0xB0,  0x4C, 0x34, 0xB7, 0x26,  0x0B, 0x50, 0x54, 0xA5,  0x08, 0x00, 0x81, 0x40,  0x81, 0x80, 0xA9, 0x00,  0xA9, 0x40, 0xB3, 0x00,  0xD1, 0xC0, 0xD1, 0x00,  0x01, 0x01, 0x28, 0x3C,  0x80, 0xA0, 0x70, 0xB0,  0x23, 0x40, 0x30, 0x20,  0x36, 0x00, 0x06, 0x44,  0x21, 0x00, 0x00, 0x1A,  0x00, 0x00, 0x00, 0xFD,  0x00, 0x2F, 0x3D, 0x18,  0x50, 0x14, 0x00, 0x0A,  0x20, 0x20, 0x20, 0x20,  0x20, 0x20, 0x00, 0x00,  0x00, 0xFC, 0x00, 0x48,  0x50, 0x20, 0x4C, 0x50,  0x32, 0x34, 0x38, 0x30,  0x7A, 0x78, 0x0A, 0x20,  0x00, 0x00, 0x00, 0xFF,  0x00, 0x33, 0x43, 0x4D,  0x31, 0x34, 0x30, 0x30,  0x30, 0x30, 0x59, 0x0A,  0x20, 0x20, 0x00, 0x3D, 	}

-----------------------------------------------------
	Valid EDID block: checksum passed

-----------------------------------------------------
------------------- MAIN EDID BLOCK -----------------
-----------------------------------------------------

EDID Version........1.4
Manufacturer........HWP
Product Code........62758 (F526) (26F5)
Serial Number.......01010101

Manufactured........Week 40 of year 2011
Max H Size..........52 cm
Max V Size..........32 cm
Gamma...............2.20

Display Supported Features:
---------------------------
	Power Management: Active off	Power Management: Suspend	Power Management: Standby

Display type:
-------------
	RGB 4:4:4 Color Encoding Format
	Display is non continuous frequency
	Default color space is sRGB standard
	Preferred timing mode includes Native Pixel Format


Input signal & sync:
--------------------
Digital Input
	10 Bits per Primary Color
	HDMI-a is supported


Color info:
-----------
Red x = 0.690  Green x = 0.205  Blue x = 0.150  White x = 0.312
Red y = 0.300  Green y = 0.715  Blue y = 0.045  White y = 0.329

Established Timings:
--------------------
		720 x 400 @ 70Hz
		640 x 480 @ 60Hz
		640 x 480 @ 75Hz
		800 x 600 @ 60Hz
		1024 x 768 @ 60Hz

Manufacturer Reserved Timings:
------------------------------

Standard Timing Identification:
-------------------------------
	#0:	1280 x 960 @ 60Hz 	(8140)
	#1:	1280 x 1024 @ 60Hz 	(8180)
	#2:	1600 x 1000 @ 60Hz 	(A900)
	#3:	1600 x 1200 @ 60Hz 	(A940)
	#4:	1680 x 1050 @ 60Hz 	(B300)
	#5:	1920 x 1080 @ 60Hz 	(D1C0)
	#6:	1920 x 1200 @ 60Hz 	(D100)

Monitor Description blocks:
---------------------------
	Descriptor #0 - Timing definition:
	Mode = 1920 x 1200 @ 59.950Hz
		Pixel Clock............. 154.00 MHz		Non-Interlaced

		                        Horizontal		Vertical
		Active.................. 1920 pixels		1200 lines
		Front Porch.............   48 pixels		   3 lines
		Sync Width..............   32 pixels		   6 lines
		Back Porch..............   80 pixels		  26 lines
		Blanking................  160 pixels		  35 lines
		Total................... 2080 pixels		1235 lines
		Scan Rate...............  74.038 kHz		 59.950 Hz

		Image Size..............  518 mm		 324 mm
		Border..................    0 pixels		   0 lines

			Sync: Digital separate with
				* Negative vertical polarity
				* Positive horizontal polarity

	Descriptor #1 - Monitor limits:
		Horizontal frequency range.......24-80 kHz
		Vertical frequency range.........47-61 Hz
		Maximum bandwidth unspecified
	Range Limits Only

	Descriptor #2 - Monitor name:
			HP LP2480zx

	Descriptor #3 - Serial number:
			3CM140000Y

Are there any other tests I can do, Final Cut Pro etc ?

regards
Steve

 

[BudMan1]

need a little help

Hi,

I have the same setup as you but am having a hard time getting the display to look crisp. In fact, it is giving me a headache Also, I am new to Mac so I updated the driver from HP, installed SwitchResX and compared the two EDID files and don't see much of a difference. Am I missing something?

Thanks in advance.

--Bud

 

[icpmac]

I have the same monitor, same setup (miniDP to DP) and os (10.9). I've also used SwithresX to activate 10-bit. But it doesn't work. Photoshop shows you banding, no matter what you do. You're not using a 10-bit framebuffer, so it's an 8-bit framebuffer. You can check that in system profiler.

I've also tried that EDID, same results. 10-bit framebuffer isn't activated.

I hope this could work, but Apple dont' allow us to get 10-bit output from the internal graphic card on imac (even if the card is capable). Only from video i/o boxes and pci cards.

 

[poematik13]

OS X does not support 10 bit output from graphics cards. You have to use an external interface (something from AJA or blackmagic) to do so