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Windows 7: Force DVI/HDMI resolutions and refresh rates

15 Oct 2010   #230

Windows 7 Ultimate x64

I forgot to say that I uninstalled them through device manager in control panel.

My System SpecsSystem Spec
17 Oct 2010   #231

Windows Ultimate x64

Hi guys

Been reading this thread and I'm hoping you can help me.

I'm trying to run Boxee on a Sonic 42" HD Ready Plasma (1024x768) unit using an Acer Aspire 5670 notebook with an ATI X1400 card and with Windows Ultimate x86.

The problem is trying to make it play in 50hz. I know it is possible because we have a WDTV media player that we set to 720P/50hz and it runs fine. The TV unit confirms the 50hz in the display in the top right hand corner.

After setting up Boxee and connecting the Acer to the TV via VGA, I notice that it automatically goes to 1024x768 @ 60hz. The video is not smooth (like when its played on the laptop primary display) and it looks similar to when content is played on 720P/60hz on the WD media player.

I've tried using Powerstrip, but I didn't really know what I was doing and couldn't make it go to 50hz. Then I tried this guide, but again, the Phoenix software wont allow resolutions under 60hz.

If you can give my any advice I would really, really appreciate it.
My System SpecsSystem Spec
17 Oct 2010   #232

Windows 7 Ultimate x64

Dell 2209WA and Ati 4870 here.
I found a 76Hz EDID override inf and it works nicely.

I'm trying to add 72Hz and 75Hz to it, but I just can't seem to get it working.
I following the guide from the OP, and the one from post 33.

I'm using EDID manager and Phoenix EDID designer.

This is what I came up with for 72Hz but when I load it 72Hz doesn't even show up in the menu (ATI drivers).
Could you please lend a hand and point WTF I could be doing wrong?
It would be great to have all three refresh rates in one inf.
(72-89)      Detailed Descriptor #2: Detailed Timing (1680x1050 @ 72Hz)

            Pixel Clock            : 177,05 MHz
            Horizontal Image Size  : 474 mm
            Vertical Image Size    : 296 mm
            Refresh Mode           : Non-interlaced
            Normal Display, No Stereo

                Active Time     : 1680 Pixels
                Blanking Time   : 576 Pixels
                Sync Offset     : 72 Pixels
                Sync Pulse Width: 360 Pixels
                Border          : 0 Pixels
                Frequency       : 78 kHz

                Active Time     : 1050 Lines
                Blanking Time   : 40 Lines
                Sync Offset     : 2 Lines
                Sync Pulse Width: 12 Lines
                Border          : 0 Lines

            Digital Separate, Horizontal Polarity (-), Vertical Polarity (+)

            Modeline: "1680x1050" 177,050 1680 1752 2112 2256 1050 1052 1064 1090 -hsync +vsync
The 76Hz code:
(54-71)      Detailed Descriptor #1: Preferred Detailed Timing (1680x1050 @ 76Hz)

            Pixel Clock            : 153,29 MHz
            Horizontal Image Size  : 474 mm
            Vertical Image Size    : 296 mm
            Refresh Mode           : Non-interlaced
            Normal Display, No Stereo

                Active Time     : 1680 Pixels
                Blanking Time   : 162 Pixels
                Sync Offset     : 32 Pixels
                Sync Pulse Width: 32 Pixels
                Border          : 0 Pixels
                Frequency       : 83 kHz

                Active Time     : 1050 Lines
                Blanking Time   : 39 Lines
                Sync Offset     : 3 Lines
                Sync Pulse Width: 6 Lines
                Border          : 0 Lines

            Digital Separate, Horizontal Polarity (-), Vertical Polarity (+)

            Modeline: "1680x1050" 153,290 1680 1712 1744 1842 1050 1053 1059 1089 -hsync +vsync
My System SpecsSystem Spec
28 Oct 2010   #233

Windows 7 Ultimate x86

Hey, just signed up to say thanks! the gtf trick that f27wreck posted worked! i can now save my custom resolutions and even select them in games! Now i just got to try and sort out the ghosting with my 3d vision lol
My System SpecsSystem Spec

02 Nov 2010   #234

Windows 7 Professional x64

This topic is amazing and I can't thank baarod, bobdynlan and the other contributors enough for the work they've put into this! The service you're offering everyone with these problems is astounding.

Before finally admitting defeat and registering to post here, I have probably ground a millimeter off my teeth and am missing large clumps of hair due to resolution/driver/EDID problems with my monitor. I could really use the help of someone who knows their stuff. I have read all 24 pages, grasping to understand as much as I can in my attempt to fix my own monitor problems. Despite having learned a ton, I simply can't seem to get it to apply to my situation, so after days of trial, error and frustration with PowerStrip, MonInfo, RegEdit, SoftMCCS, PED, Refresh Force and different Catalyst and monitor drivers, I registered here to see if anyone can help.

My problem is that I can ONLY get my 16:10 external monitor to work properly at the native resolution or non-16:10 resolutions. At 1920x1200, my Samsung SyncMaster 2433BW looks beautiful, connected by a 1.5 meter VGA cable to my notebook's ATI Radeon Mobility HD 3650. However, especially for gaming, I would like to be able to use other resolutions, such as 1280x800. Unfortunately, at all other resolutions, the screen either has vertical bars of blurriness (not sure if that makes sense - the screen is blurry due to the lower resolution but is blurrier at regular horizontal intervals) or worse, it states that the mode is not optimal and turns off after 60 seconds, which is the case for 1280x800.

The monitor was hooked up via DVI to an HDMI port on a notebook that recently died (coincidentally with the same GPU), but my replacement only has a VGA connection. On the previous notebook, it also had the "not optimal mode" problem, but that went away after changing the GPU scaling option in the Catalyst Control Panel. This is a DVI-only option, so no dice with this VGA setup.

The problem seems to be that if I set the resolution to 1280x800, the refresh rate goes up to 75, causing my monitor to display the warning. If I manually change this to 60Hz (either through Windows' advanced display properties dialog or the Catalyst Control Panel) the warning goes away. It always defaults back to 75Hz after any resolution change, though. Making it impossible to use.

Furthermore, aside from 1920x1200 and 1280x800, I can only choose from 4:3 resolutions. These are pretty useless to me since the screen is 16:10, so I would like to have 16:10 options as well (or instead), so the resolutions I need working are 768x480, 1024x640, 1152x720, 1280x800, 1440x900, 1680x1050, and 1920x1200 (which is the only working resolution in the list).

I extracted my EDID successfully with softMCCS, MonInfo, and from the registry with PED. These are all identical (no surprise there). In MonInfo I was able to select the monitor identified as SAM0466 either as "Real-time 0x0011" or as "Registry Active"

My system:
System:         Toshiba Satellite A300 Notebook
OS:             Windows 7 Professional x64
Graphics Card:  ATI Radeon Mobility HD 3650 (with VGA connection only)
Driver:         Catalyst 10.10
Display 1:      LG-Philips LP154WX4-TLC8 @ 1280x800 @ 60Hz (works fine)
Display 2:      Samsung SyncMaster 2433BW @ 1920x1200 @ 60Hz (the problem!)
The SyncMaster 2433BW's EDID
0x   00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
00 | 00 FF FF FF FF FF FF 00 4C 2D 66 04 34 32 4D 43
10 | 0C 13 01 03 0E 34 20 78 2A 9F C1 A6 56 4B 9A 25
20 | 13 50 54 BF EF 80 A9 40 81 80 81 40 71 4F 01 01
30 | 01 01 01 01 01 01 28 3C 80 A0 70 B0 23 40 30 20
40 | 36 00 06 44 21 00 00 1A 00 00 00 FD 00 38 4B 1E
50 | 51 11 00 0A 20 20 20 20 20 20 00 00 00 FC 00 53
60 | 79 6E 63 4D 61 73 74 65 72 0A 20 20 00 00 00 FF
70 | 00 48 39 58 53 33 30 32 34 38 35 0A 20 20 00 72
And the information from MonInfo:
  Model name............... SyncMaster
  Manufacturer............. Samsung
  Plug and Play ID......... SAM0466
  Serial number............ H9XS302485
  Manufacture date......... 2009, ISO week 12
  EDID revision............ 1.3
  Input signal type........ Analog 0.700,0.300 (1.0V p-p)
  Sync input support....... Separate, Composite, Sync-on-green
  Display type............. RGB color
  Screen size.............. 520 x 320 mm (24.0 in)
  Power management......... Active off/sleep
  Extension blocs.......... None
  DDC/CI................... Supported
  MCCS revison............. 2.0
  Display technology....... TFT
  Controller............... Mstar 0x1000
  Firmware revision........ 0.1
  Firmware flags........... 0x00000001
  Active power on time..... Not supported
  Power consumption........ Not supported
  Current frequency........ Not supported

Color characteristics
  Default color space...... Non-sRGB
  Display gamma............ 2.20
  Red chromaticity......... Rx 0.650 - Ry 0.337
  Green chromaticity....... Gx 0.296 - Gy 0.604
  Blue chromaticity........ Bx 0.147 - By 0.074
  White point (default).... Wx 0.313 - Wy 0.329
  Additional descriptors... None

Timing characteristics
  Horizontal scan range.... 30-81kHz
  Vertical scan range...... 56-75Hz
  Video bandwidth.......... 170MHz
  CVT standard............. Not supported
  GTF standard............. Not supported
  Additional descriptors... None
  Preferred timing......... Yes
  Native/preferred timing.. 1920x1200p at 60Hz (16:10)
    Modeline............... "1920x1200" 154.000 1920 1968 2000 2080 1200 1203 1209 1235 +hsync -vsync

Standard timings supported
     720 x  400p at  70Hz - IBM VGA
     640 x  480p at  60Hz - IBM VGA
     640 x  480p at  67Hz - Apple Mac II
     640 x  480p at  72Hz - VESA
     640 x  480p at  75Hz - VESA
     800 x  600p at  56Hz - VESA
     800 x  600p at  60Hz - VESA
     800 x  600p at  72Hz - VESA
     800 x  600p at  75Hz - VESA
     832 x  624p at  75Hz - Apple Mac II
    1024 x  768p at  60Hz - VESA
    1024 x  768p at  70Hz - VESA
    1024 x  768p at  75Hz - VESA
    1280 x 1024p at  75Hz - VESA
    1152 x  870p at  75Hz - Apple Mac II
    1600 x 1200p at  60Hz - VESA STD
    1280 x 1024p at  60Hz - VESA STD
    1280 x  960p at  60Hz - VESA STD
    1152 x  864p at  75Hz - VESA STD

Report information
  Date generated........... 02/11/2010
  Software revision........
  Data source.............. Real-time 0x0011
  Operating system......... 6.1.7600.2

Raw data
As you can see, the included resolutions are all 4:3 and pretty low, so none of the resolutions I need are there. Why I have the option to change my resolution to 1280x800 (@ 75Hz) in the Windows resolution options is a mystery to me.

Before tackling PED, I gave Refresh Force 1.10 a try, adding the resolutions I wanted and changing the 1280x800 refresh rate from 75Hz to 60Hz.

Unfortunately, that did nothing that I'm aware of, so I opened the EDID in PED. Here is where things start getting into rough territory for me and I don't really know what I'm doing. For the most part, everything looks right, except the established timings and standard timings. The only thing I could think of was manually editing the standard timings to change one field to H. Active pixels: 1280, Refresh: 60, Aspect Ratio: 16:10. I saved this, generated an inf and used the Have Disk method to install the driver. This resulted in my screen blinking on and off non-stop and being obviously borked.

Unplugging the monitor, booting into safe-mode and trying to show hidden devices did nothing, so the only way to get rid of the driver was by using System Restore. This is where I am now - and after 3 days of this, I'm pretty worn out. I could really use a more knowledgeable person's help!

I also took a look at the driver for the monitor and see that it only includes information for the 1920x1200 (@ 60HZ) resolution, so that could explain why Windows (and games) don't know what to do at lower resolutions. I have attached that driver's inf file as well. If I could put together an improved driver, I would love to provide this to the entire community of SyncMaster 2433BW owners!

Attached Files
File Type: zip Driver (949 Bytes, 151 views)
File Type: zip EDID (389 Bytes, 135 views)
My System SpecsSystem Spec
08 Nov 2010   #235

Windows 7 64 bit Ultimate

Magnavox 32MF337B
  • Resolution 1366 x 768
  • Display format 720p
  • Supported DTV resolutions 480p,
  • Supported computer resolutions 1024 x 768 (XGA),
    1280 x 768 (WXGA),
    640 x 480 (VGA),
    800 x 600 (SVGA)
Right now its showing up under windows and an ati video card with max resolution of 1360x768 @ 60hz. I'm a little confused since it says max computer resolution is lower than that. Will I be able to force this monitor to a higher resolution with this mod since it can go up to 1080i or does it have to support 1080p ?
My System SpecsSystem Spec
24 Nov 2010   #236

Windows 7 Ultimate X64

Hi guys not sure if anyone can help,

I just got a new laptop MSI GX740 which has the ATI 5870m gfx card, I would like to connect it to my Samsung 2233rz, I have a Dual Link DVI > HDMI cable, I'm using ATI 10.11 drivers

I would like to be able to use 120hz at 1680x1050 and 800x600 are the main resolutions anything else is a bonus :), I've had a look through but cannot see anyone with this monitor so was not able to get any information about EDID.

Ok i've just been playing with Phoenix and I can get 75hz at 1680x1050 and I can get 75hz at 800x600 but my monitor always moans "not optimum mode, recommended mode 1680x1050 ?", when I increased the pxl clock I could see 120hz as a option for 800x600 but 1680x1050 res had completely disappeared.

Here is my EDID attached

Thanks in advance


Attached Files
File Type: zip Samsung 2233rz (321 Bytes, 110 views)
My System SpecsSystem Spec
03 Dec 2010   #237

Windows 7 Professional 32 Bit

Hi all, really hoping that people still frequent this topic...

I am running a Forsa Geforce 9800GT 1Gb connected to an LG W2234 22" monitor on Windows 7 Pro 32bit. The screen only has dsub output and card only dual-link DVI in, so using a dvi-i connector.

Windows 7 has locked the resolution at 800x600x16bit while the monitors native resolution is 1680x1050x32bit.

I have read all 24 pages of this thread and attempted the following fixes:
  • Extracted proper monitor EDID info using MonInfo. Used this to generate an INF and installed it using Device Manager, Have Disk. Nothing.
  • Located the registry key (current control set....monitor) and included EDID override flags - nothing.
  • Checked EDID from registry (using Phoenix EDID designer) against monitor EDID (using MonInfo) - exactly the same bytes.
  • Updated to latest Nvidia drivers - nothing
  • Hacked NVdisp INF to include EDID override flags - nothing
  • Removed pins from DVI-I VGA connector as indicated - nothing
After all this, Windows recognises my monitor correctly but locks out my res at 800x600x16bit. So 6 days of extreme frustration later, I am nowhere nearer to using Windows 7. Additionally, no drivers from 185 upwards seem to make any difference.

Interestingly when I use XP, the old 186 drivers and earlier work perfectly, anything older than that though and I had the same issue in XP.

Any help would be greatly appreciated.
My System SpecsSystem Spec
23 Dec 2010   #238

Ubuntu 10.10 / Seven / MacOS X
Ca marche!

Thank you very much for your solution!!
Thanks to you, my Philips 109s can run again in 2010!
My System SpecsSystem Spec
24 Dec 2010   #239

El Capitan / Windows 10

Quote   Quote: Originally Posted by Bozy View Post
Thank you very much for your solution!!
Thanks to you, my Philips 109s can run again in 2010!
What, they didn't support EDID?
My System SpecsSystem Spec

 Force DVI/HDMI resolutions and refresh rates

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