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How to bypass 'this is 85hz override' message?

Talk about overclocking displays at a higher refresh rate. This includes homebrew, 165Hz, QNIX, Catleap, Overlord Tempest, SEIKI displays, certain HDTVs, and other overclockable displays.

How to bypass 'this is 85hz override' message?

Postby Hardcore » 03 Mar 2017, 19:03

So I was able to overclock my monitor Philips 273EL to 76.979 Hz:
http://i.imgur.com/LPYyQlC.png

But once I set refresh rate above 76.979, monitor still works, but I get this message in the center of the screen for ~5 seconds, saying:
This is 85Hz override,
change computer display
input to 1920X1080@60Hz

Then it disappears for like 30 seconds and then I get this message for ~5 seconds, again.

Is there a way to somehow edit firmware of the monitor(or do something else), so it doesn't show this message? I mean, monitor works at 84 Hz but I get this message and it's unplayable with this message.

Information about my monitor from MonInfo:
Code: Select all
Monitor
  Model name............... Philips 273EL
  Manufacturer............. Philips
  Plug and Play ID......... PHLC07C
  Serial number............ AU51303009475
  Manufacture date......... 2013, ISO week 3
  Filter driver............ None
  -------------------------
  EDID revision............ 1.3
  Input signal type........ Digital
  Color bit depth.......... Undefined
  Display type............. RGB color
  Screen size.............. 600 x 340 mm (27,2 in)
  Power management......... Active off/sleep
  Extension blocs.......... None
  -------------------------
  DDC/CI................... Supported
  MCCS revison............. 2.2
  Display technology....... TFT
  Controller............... Novatek 0x0
  Firmware revision........ 1.0
  Firmware flags........... 0x00000070
  Active power on time..... 22187 hours
  Power consumption........ Not supported
  Current frequency........ 83,50kHz, 77,00Hz

Color characteristics
  Default color space...... Non-sRGB
  Display gamma............ 2,20
  Red chromaticity......... Rx 0,644 - Ry 0,336
  Green chromaticity....... Gx 0,295 - Gy 0,611
  Blue chromaticity........ Bx 0,146 - By 0,070
  White point (default).... Wx 0,313 - Wy 0,329
  Additional descriptors... None

Timing characteristics
  Horizontal scan range.... 30-83kHz
  Vertical scan range...... 56-76Hz
  Video bandwidth.......... 170MHz
  CVT standard............. Not supported
  GTF standard............. Not supported
  Additional descriptors... None
  Preferred timing......... Yes
  Native/preferred timing.. 1920x1080p at 60Hz (16:9)
    Modeline............... "1920x1080" 148,500 1920 2008 2052 2200 1080 1084 1089 1125 +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  60Hz - VESA
     800 x  600p at  75Hz - VESA
    1024 x  768p at  60Hz - VESA
    1024 x  768p at  75Hz - VESA
    1280 x 1024p at  75Hz - VESA
    1920 x 1080p at  60Hz - VESA STD
    1280 x 1024p at  60Hz - VESA STD
    1440 x  900p at  75Hz - VESA STD
    1440 x  900p at  60Hz - VESA STD
    1680 x 1050p at  60Hz - VESA STD

Report information
  Date generated........... 04.03.2017
  Software revision........ 2.90.0.1020
  Data source.............. Real-time 0x0011
  Operating system......... 10.0.10240.2

Raw data
  00,FF,FF,FF,FF,FF,FF,00,41,0C,7C,C0,03,25,00,00,03,17,01,03,80,3C,22,78,2A,CA,45,A4,56,4B,9C,25,
  12,50,54,BD,4B,00,D1,C0,81,80,95,0F,95,00,B3,00,01,01,01,01,01,01,02,3A,80,18,71,38,2D,40,58,2C,
  45,00,56,50,21,00,00,1E,00,00,00,FF,00,41,55,35,31,33,30,33,30,30,39,34,37,35,00,00,00,FC,00,50,
  68,69,6C,69,70,73,20,32,37,33,45,4C,00,00,00,FD,00,38,4C,1E,53,11,00,0A,20,20,20,20,20,20,00,0F

I'm stuck.
Need help, gurus. Thanks in advance! Image
Hardcore
 
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Re: How to bypass 'this is 85hz override' message?

Postby Falkentyne » 03 Mar 2017, 19:12

Try using ToastyX pixelclock patcher to patch the single link and dual link DVI limits.
If this doesn't work, there's nothing at all you can do.
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Re: How to bypass 'this is 85hz override' message?

Postby Hardcore » 03 Mar 2017, 21:14

Falkentyne wrote:Try using ToastyX pixelclock patcher to patch the single link and dual link DVI limits.

I do use pixelclock patcher(nvlddmkm-patcher-1.3.5). But this patcher was made for a different purpose.

Falkentyne wrote:If this doesn't work, there's nothing at all you can do.

Why not? You can somehow download monitor's firmware, edit it, so this message doesn't show, then patch monitor with new firmware...

I just don't know how to do this.
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Re: How to bypass 'this is 85hz override' message?

Postby Falkentyne » 03 Mar 2017, 21:56

No one here knows how to do this. there's no forum for monitor firmware disassembly in existence. There has been some work on black frame insertion, but that's far different from changing how the firmware sends messages to the OSD. You can ask Chief. The most we have are the EDID overrides.

Sometimes, the service menu may have some option, but I don't think anyone here knows how to get into the service menu to check.

Try one of the Linux hardware forums to see if someone can help you there. Good luck.
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Re: How to bypass 'this is 85hz override' message?

Postby Chief Blur Buster » 04 Mar 2017, 18:53

Falkentyne wrote:No one here knows how to do this. there's no forum for monitor firmware disassembly in existence. There has been some work on black frame insertion, but that's far different from changing how the firmware sends messages to the OSD. You can ask Chief. The most we have are the EDID overrides.

Actually I know a few who has the skill to hack monitor firmwares. But for such skilled people, it is easier for them to simply earn more money to buy another monitor that solves the problem.

Overall, there is generally little incentive to invent monitor firmware hacks due to the low risk-reward factor.

The big risk is your monitor is bricked & warranty is voided. In theory, it is possible to do monitor firmware hacking if you really wanted to do that -- you need to be a programmer, know the chip that the monitor uses, and modify the appropriate (often assembly language code). People like that exist out there, but you don't see this skill being applied to a potentially risky bricking of a computer monitor. And if you paid someone else to do it -- paying for the services of firmware hacking cost more than what most common monitors cost.

I can vouch that "cirthix" here is one of the forum members here who definitely has the skills to hack monitor firmwares...
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Re: How to bypass 'this is 85hz override' message?

Postby lexlazootin » 05 Mar 2017, 23:19

Sometimes i find that monitors use weird rules for determining what refresh rate they are at.

SOMETIMES when i get problems like this, you can get a more of a overclock by lowering your VTotal or HTotal, and sometimes you can lower the front and back to 1 to decrease the VT/HT even more.

If you need to lower your HT total even more try using a resolution like 1440x1080 for more bandwidth.

This works on Benq monitors with a 144hz artificial cap.
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