HD4000 hdmi Black level not black enough. Gradient Banding too
pman6 Oct 2, 2012 6:40 PMIntel, please fix the hdmi output!
I am bumping this topic because my laptop's Intel HD4000 hdmi port does not display black color.
it's dark gray.
Also, the hdmi port cannot display black to white gradient smoothly. It shows major banding.
My laptop has only a vga and hdmi port.
HOWEVER,
HD4000 via VGA port displays very dark black just fine, and gradients are smooth with no banding.
HD4000 with HDMI-DVI adapter displays dark black and gradients just fine when connected to monitor dvi port.
Intel's driver is messed up!
There's no problem with the hdmi cable, because when I plug the cable into my AMD laptop, it displays dark blacks and smooth gradients on the same monitor.
My external monitor is an Asus VH238h, with vga, dvi, and hdmi inputs.
It has built-in speakers.
You say that switchable graphics does not use generic intel drivers, but that is not true.
Even in new Nvidia Optimus laptops, the main driver is a generic Intel driver.
I am using the latest generic Intel driver.
Here's a weird clue-
*Intel graphics driver sees my external Asus monitor as a "digital television" when plugged into the hdmi port, and shows gray blacks and banding.
*It sees the same external Asus monitor as "Monitor" when plugged into VGA port, shows dark blacks and no banding.
*It sees the asus monitor as "Digital Display" when plugged into the DVI port via an hdmi-dvi adapter, shows dark blacks and no banding.
The common thing among all the complaints in this forum is that "Digital Television" hdmi color output is broken.
Maybe you Intel guys should look into that, since my "Monitor" and "Digital Display" outputs are 100% ok, but my "Digital TV" output is not.
So, in summary,
HD4000 HDMI = half broken.
HD4000 VGA = fully functional
Please fix it, Intel.
It doesn't make sense that VGA works, but HDMI only half-works.
Please make it work with "digital televisions".
Here's my report-
Intel(R) HD Graphics 4000
Report Date: 9/30/2012
Report Time[hh:mm:ss]: 04:34:14
Driver Version: 8.15.10.2761
Operating System: Windows 7 Service Pack 1(6.1.7601)
Default Language: English (United States)
DirectX* Version: 11.0
Physical Memory: 8094 MB
Minimum Graphics Memory: 64 MB
Maximum Graphics Memory: 1696 MB
Graphics Memory in Use: 75 MB
Processor: Intel64 Family 6 Model 58 Stepping 9
Processor Speed: 2294 MHz
Vendor ID: 8086
Device ID: 0166
Device Revision: 09
* Processor Graphics Information *
Processor Graphics in Use: Intel(R) HD Graphics 4000
Video BIOS: 2132.0
Current Graphics Mode: 1920 by 1080
* Devices Connected to the Graphics Accelerator *
Active Digital Televisions: 1
Active Notebook Displays: 1
Non Active Monitors: 1
* Monitor *
Monitor Name: Generic PnP Monitor
Display Type: Analog
Gamma Value: 2.2
DDC2 Protocol: Supported
Maximum Image Size:
Horizontal: 20.08 inches
Vertical: 11.42 inches
Monitor Supported Modes:
640 by 480 (67 Hz)
640 by 480 (75 Hz)
640 by 480 (72 Hz)
640 by 480 (60 Hz)
720 by 400 (70 Hz)
800 by 600 (72 Hz)
800 by 600 (75 Hz)
800 by 600 (56 Hz)
800 by 600 (60 Hz)
832 by 624 (75 Hz)
1024 by 768 (75 Hz)
1024 by 768 (70 Hz)
1024 by 768 (60 Hz)
1152 by 864 (75 Hz)
1152 by 870 (75 Hz)
1280 by 1024 (60 Hz)
1280 by 960 (60 Hz)
1280 by 1024 (75 Hz)
1400 by 1050 (60 Hz)
1440 by 900 (60 Hz)
1600 by 1200 (60 Hz)
1680 by 1050 (60 Hz)
1920 by 1080 (60 Hz)
Display Power Management Support:
Standby Mode: Not Supported
Suspend Mode: Not Supported
Active Off Mode: Supported
* Digital Television *
Monitor Name: Generic PnP Monitor
Display Type: Digital
Gamma Value: 2.2
DDC2 Protocol: Supported
Maximum Image Size:
Horizontal: 20.08 inches
Vertical: 11.42 inches
Monitor Supported Modes:
640 by 480 (67 Hz)
640 by 480 (75 Hz)
640 by 480 (72 Hz)
640 by 480 (60 Hz)
720 by 400 (70 Hz)
800 by 600 (72 Hz)
800 by 600 (75 Hz)
800 by 600 (56 Hz)
800 by 600 (60 Hz)
832 by 624 (75 Hz)
1024 by 768 (75 Hz)
1024 by 768 (70 Hz)
1024 by 768 (60 Hz)
1152 by 864 (75 Hz)
1152 by 870 (75 Hz)
1280 by 1024 (60 Hz)
1280 by 960 (60 Hz)
1280 by 1024 (75 Hz)
1400 by 1050 (60 Hz)
1440 by 900 (60 Hz)
1600 by 1200 (60 Hz)
1680 by 1050 (60 Hz)
1920 by 1080 (60 Hz)
Display Power Management Support:
Standby Mode: Not Supported
Suspend Mode: Not Supported
Active Off Mode: Supported
Raw EDID:
00 FF FF FF FF FF FF 00 04 69 F9 23 01 01 01 01
03 15 01 03 80 33 1D 78 2E DC 55 A3 59 48 9E 24
11 50 54 BF EF 80 D1 C0 B3 00 A9 40 95 00 90 40
81 80 81 40 71 4F 02 3A 80 18 71 38 2D 40 58 2C
45 00 FD 1E 11 00 00 1F 00 00 00 FF 00 42 31 4C
4D 49 5A 30 38 34 37 38 38 0A 00 00 00 FD 00 37
4B 1E 55 13 00 0A 20 20 20 20 20 20 00 00 00 FC
00 41 53 55 53 20 56 48 32 33 38 0A 20 20 01 13
02 03 25 F1 52 90 05 04 03 02 07 06 0F 0E 1F 14
1E 1D 13 12 11 16 01 23 09 7F 07 83 01 00 00 65
03 0C 00 10 00 02 3A 80 18 71 38 2D 40 58 2C 45
00 FD 1E 11 00 00 1E 01 1D 80 18 71 1C 16 20 58
2C 25 00 FD 1E 11 00 00 9E 01 1D 00 72 51 D0 1E
20 6E 28 55 00 FD 1E 11 00 00 1E 02 3A 80 D0 72
38 2D 40 10 2C 45 80 FD 1E 11 00 00 1E 8C 0A D0
8A 20 E0 2D 10 10 3E 96 00 FD 1E 11 00 00 18 06
* Built-in Display *
Monitor Name: Generic PnP Monitor
Display Type: Digital
Gamma Value: 2.2
DDC2 Protocol: Supported
Maximum Image Size:
Horizontal: 13.78 inches
Vertical: 07.48 inches
Monitor Supported Modes:
1920 by 1080 (60 Hz)
Display Power Management Support:
Standby Mode: Not Supported
Suspend Mode: Not Supported
Active Off Mode: Not Supported
Raw EDID:
00 FF FF FF FF FF FF 00 30 E4 E9 01 00 00 00 00
00 13 01 03 80 23 13 78 0A 08 D5 9F 5A 50 96 25
1E 50 54 00 00 00 01 01 01 01 01 01 01 01 01 01
01 01 01 01 01 01 1A 36 80 A0 70 38 1F 40 30 20
35 00 59 C2 10 00 00 19 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 FE 00 4C
47 20 44 69 73 70 6C 61 79 0A 20 20 00 00 00 FE
00 4C 50 31 35 36 57 46 31 2D 54 4C 43 31 00 B0