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Author Topic: Can not change monitor resolution  (Read 7896 times)
brianz71

Posts: 3


« on: December 26, 2010, 11:19:25 AM »

Hi,

I have a Soyo Topaz DYLM24D6. After returning from a business trip I started my desktop and the screen resolution was set to 1024 X 768. I am able to change it but I have to scroll around the screen to see the whole desk top. We have been experiencing some problems with brown outs and power outages in our area. I am guessing that there is now a problem with EDID. I have posted the report from monitor manager. Any help is greatly appreciated.

Monitor
  Manufacturer............. CGC
  Plug and Play ID......... CGC76DA
  Serial number............ ÿÿÿÿÿÿÿÿÿÿÿÿÿ
  Manufacture date......... 2007, ISO week 22
  -------------------------
  EDID revision............ 1.3
  Input signal type........ Digital
  Color bit depth.......... Undefined
  Display type............. RGB color
  Screen size.............. 520 x 330 mm (24.2 in)
  Power management......... Standby, Suspend, Active off/sleep
  Extension blocs.......... 255 (Reserved - 0x00)
  -------------------------
  DDC/CI................... Supported
  MCCS revison............. 2.0
  Display technology....... TFT
  Controller............... RealTek 0x23
  Firmware revision........ 2.0
  Firmware flags........... 0x0000005A
  Active power on time..... Not supported
  Power consumption........ Not supported
  Current frequency........ 16711.73kHz, 0.60Hz

Color characteristics
  Default color space...... Non-sRGB
  Display gamma............ 2.20
  Red chromaticity......... Rx 0.653 - Ry 0.337
  Green chromaticity....... Gx 0.295 - Gy 0.607
  Blue chromaticity........ Bx 0.144 - By 0.075
  White point (default).... Wx 0.313 - Wy 0.329
  Additional descriptors... None

Timing characteristics
  Range limits............. Not available
  GTF standard............. Not supported
  Additional descriptors... None
  Preferred timing......... Yes
  Native/preferred timing.. 4095x8190i at 10Hz (1:1)
    Modeline............... "4095x8190" 655.350 4095 5118 6141 8190 8190 8316 8442 16380 interlace +hsync +vsync
  Detailed timing #1....... 4095x8190i at 10Hz (1:1)
    Modeline............... "4095x8190" 655.350 4095 5118 6141 8190 8190 8316 8442 16380 interlace +hsync +vsync
  Detailed timing #2....... 4095x8190i at 10Hz (1:1)
    Modeline............... "4095x8190" 655.350 4095 5118 6141 8190 8190 8316 8442 16380 interlace +hsync +vsync
  Detailed timing #3....... 4095x8190i at 10Hz (1:1)
    Modeline............... "4095x8190" 655.350 4095 5118 6141 8190 8190 8316 8442 16380 interlace +hsync +vsync

Standard timings supported
     720 x  400p at  70Hz - IBM VGA
     640 x  480p at  60Hz - IBM VGA
     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  768i at  87Hz - IBM
    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
     640 x  480p at  85Hz - Manufacturer
     800 x  600p at  85Hz - Manufacturer
    1024 x  768p at  85Hz - Manufacturer
    1280 x 1024p at  85Hz - Manufacturer
    1600 x 1200p at  75Hz - Manufacturer
    2288 x 1287p at 123Hz - VESA STD
    2288 x 1287p at 123Hz - VESA STD
    2288 x 1287p at 123Hz - VESA STD
    2288 x 1287p at 123Hz - VESA STD
    2288 x 1287p at 123Hz - VESA STD
    2288 x 1287p at 123Hz - VESA STD
    2288 x 1287p at 123Hz - VESA STD
    2288 x 1287p at 123Hz - VESA STD

Report information
  Date generated........... 12/26/2010
  Software revision........ 2.55.0.868
  Data source.............. Real-time 0x0021
  Operating system......... 5.1.2600.2.Service Pack 3

Raw data
  00,FF,FF,FF,FF,FF,FF,00,0C,E3,DA,76,3A,1C,00,00,16,11,01,03,80,34,21,78,EA,5A,D5,A7,56,4B,9B,24,
  13,50,54,A1,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,
  FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,
  FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,FF,DC


Thank You.
Brian Zessin
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Ashley Saldanha
Administrator
*****
Posts: 1806


« Reply #1 on: December 26, 2010, 03:01:36 PM »

Yes, it is a corrupt EDID. There is not much you can do with XP, but if you were to upgrade to Win7 you could compensate for this with an "EDID override".

Another workaround: switch from DVI to analog VGA.
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brianz71

Posts: 3


« Reply #2 on: December 26, 2010, 03:04:11 PM »

Thank you, at least I know what is wrong now. Is it possible to re-flash with powerstrip?
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Ashley Saldanha
Administrator
*****
Posts: 1806


« Reply #3 on: December 26, 2010, 04:04:03 PM »

It may be - it depends on the GPU and the specific monitor, but if the EDID became corrupt that usually - not always, but usually - means it is writable and can be rewritten.
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brianz71

Posts: 3


« Reply #4 on: December 26, 2010, 04:26:17 PM »

Thank you very much for your help Ashley.

Knowing up front that there is a possiblity that a re-write may not work. Could you walk me through the steps I would need to perform to complete this task. If I have the raw data from a working monitor, is that all I have to replace?

Thank you.
Brian Zessin
Logged
Ashley Saldanha
Administrator
*****
Posts: 1806


« Reply #5 on: December 27, 2010, 07:18:57 AM »

I'm afraid I can't - there are so many variables involved, we don't support that procedure at all. But you can find several "guides" to doing this on the web. Have a look at this recent and popular one, and just skip over all the Samsung 3D related stuff. You only need to update the base EDID, and you don't need to go into any service menu. You'll get the idea...
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michaelstockman

Posts: 1


« Reply #6 on: January 10, 2011, 01:37:47 AM »

Had a similar problem, changing the video drivers sorted it
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