Monitor Tests Forum - Custom Resolution Utility (CRU)

Pages: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950

(08-23-2020 05:50 PM)matthew Wrote: [ -> ]No I'm not sure what it was before the screen was replaced but its definitely more zoomed in, so 1366x768 is too low but I can't work out what the original was.

In the Windows display settings, is the scale set to 100%?

(08-23-2020 05:56 PM)ToastyX Wrote: [ -> ]
(08-23-2020 05:50 PM)matthew Wrote: [ -> ]No I'm not sure what it was before the screen was replaced but its definitely more zoomed in, so 1366x768 is too low but I can't work out what the original was.
In the Windows display settings, is the scale set to 100%?

Yes on 100% and it won't let me go below that unfortunately

Hello everyone.
Can you help me set my Surface display to 3000*2000px 50Hz.

I need to have perfect timings, what should I enter in the setting in CRU, and polarity ?
I don't know what to calculate.

By default when I install a fresh windows, it default to 52Hz, do you know why ?
When I bought it was 60hz.

Thank you.

EDIT : I can't change resultion inside the Intel Graphic Control Panel I have this error :
"The custom resolution exceeds maximum bandwidth capacity."
And when I use CRU 1.4.2 I add the resolution 3000*2000*50hz and 3000*2000*25hz, but they do not appear in the Monitor settings, or the intel panel after restart.
I already used CRU befor but I never had this issue on my other computers.
Can you help me. On ubuntu it's a solid 3000*2000*60HZ.

When I click on "list all modes", all the resolution are locked to 52HZ !
And the CRU resolution are not registered.

EDIT : Could it be EDID related ? Because when I don't use any graphic drivers I am not locked to 52HZ ?

(08-24-2020 12:38 PM)vigan1 Wrote: [ -> ]Hello everyone.
Can you help me set my Surface display to 3000*2000px 50Hz.

I need to have perfect timings, what should I enter in the setting in CRU, and polarity ?
I don't know what to calculate.

By default when I install a fresh windows, it default to 52Hz, do you know why ?
When I bought it was 60hz.

Thank you.

What do you mean by perfect timings? 52 Hz is unusual. Have you installed the latest graphics driver?

Yes Latest driver and old also same results. Tried 1709 and 2004, same results.

Did you read the edit I made in my previous post ?

It might be an edid corruption.
Maybe because I updated to the latest bios ?

I have extracted the edid with Entech MonInfo Monitor Asset Manager, and here is what it said :
https://ctxt.io/2/AAAguPg5FA

Do you have any idea what would cause it ?

EDIT : By perfect timing I meant 20ms frame, which is an even number

(08-24-2020 05:12 PM)vigan1 Wrote: [ -> ]Yes Latest driver and old also same results. Tried 1709 and 2004, same results.

Did you read the edit I made in my previous post ?

It might be an edid corruption.
Maybe because I updated to the latest bios ?

I have extracted the edid with Entech MonInfo Monitor Asset Manager, and here is what it said :
https://ctxt.io/2/AAAguPg5FA

Do you have any idea what would cause it ?

EDIT : By perfect timing I meant 20ms frame, which is an even number

The EDID doesn't look corrupted. The range limits also says 52 Hz. You can get exactly 50 Hz by changing the vertical total to 2065.

(08-24-2020 05:12 PM)vigan1 Wrote: [ -> ]Yes Latest driver and old also same results. Tried 1709 and 2004, same results.

It might be an edid corruption.
Maybe because I updated to the latest bios ?

I have extracted the edid with Entech MonInfo Monitor Asset Manager, and here is what it said :
https://ctxt.io/2/AAAguPg5FA

Do you have any idea what would cause it ?

EDIT : By perfect timing I meant 20ms frame, which is an even number

edid-decode says this:

Code:

EDID version: 1.4

FAIL: Manufacturer name field contains garbage

Manufacturer: MS_ Model 3 Serial Number 3

Made in year 2002

Digital display

8 bits per primary color channel

DisplayPort interface

Maximum image size: 28 cm x 19 cm

Gamma is defined in an extension block

DPMS levels: Off

Supported color formats: RGB 4:4:4, YCrCb 4:4:4

Default (sRGB) color space is primary color space

FAIL: sRGB is signaled, but the chromaticities do not match

First detailed timing includes the native pixel format and preferred refresh rate

Display is continuous frequency

Color Characteristics

  Red:   0.6250, 0.3398

  Green: 0.2851, 0.6054

  Blue:  0.1484, 0.0625

  White: 0.2812, 0.3085

Established Timings I & II: none

Standard Timings: none

Detailed mode: Clock 361.000 MHz, 285 mm x 190 mm

               3000 3008 3016 3360 (  8   8 344)

               2000 2008 2016 2064 (  8   8  48)

               +hsync +vsync

               VertFreq: 52.054 Hz, HorFreq: 107.440 kHz

Display Product Name: HXTE133E27I3P

Display Range Limits

  Monitor ranges (GTF): 52-52 Hz V, 176-176 kHz H, max dotclock 370 MHz

FAIL: Byte 11 is 0x00 instead of 0x0a

FAIL: Byte 12 is 0x00 instead of 0x20

Empty Descriptor

FAIL: Use Dummy Descriptor instead of all zeroes

Checksum: 0xcd

WARN: One or more of the timings is out of range of the Monitor Ranges:

    Vertical Freq: 52 - 52 Hz (Monitor: 52 - 52 Hz)

    Horizontal Freq: 107.440 - 107.440 kHz (Monitor: 176.000 - 176.000 kHz)

    Maximum Clock: 361.000 MHz (Monitor: 370.000 MHz)

Fix the vertical freq range so it is between 49 and 52 Hz.
Fix the last descriptor so that it uses Dummy Descriptor bytes (000000100000000000000000000000000000) instead of zero bytes (000000000000000000000000000000000000). Descriptors containing only zero bytes are Empty Descriptors which are used only in the CTA block.

Below are some timings with the pixel clock altered to get closer to 50 Hz (to 1/1000th of a Hz maybe)

Code:

timing  w   ,hfp,hsw,hbp,   h,vfp,vsw,vbp,  pclk,positive hsync

GTF     3000,228,329,557,2000,  1,  3, 54,423331,5

CVT     3000,228,329,557,2000,  3, 10, 47,423742,5

CVT-RB  3000, 48, 32, 80,2000,  3, 10, 35,323584,5

CVT-RB2 3000,  8, 32, 40,2000, 34,  8,  6,315392,5

It's impossible to get exactly 50 Hz. Pixel clock should be integer MHz to guarantee that a GPU will try to achieve it exactly, otherwise a GPU may round the pixel clock to the nearest 0.25 MHz or 0.10 MHz or 0.01 MHz or whatever precision the GPU uses which will then change the refresh rate. If the pixel clock changes but you want the refresh rate to remain the same, then you need to alter the number of pixels in the horizontal or vertical blanking.

Thank you guys. I think I know what is going on.

I updated the bios, then my laptop changed from default using "Generic PnP monitor" inf, to "Digital Flat panel (1024*768 60Hz)" inf, after a fresh windows install. Which is in itself weird, since my laptop use the surface book display and the resolution on the desktop is still 3000*2000.

When I uninstall the Intel drivers, I can set back the "Generic PnP monitor" and indeed I see that the screen is 64Hz. But when reinstall the drivers, it get back to 52hz LOCKED automatically. It seems that the intel drivers default to the internal EDID of the screen (which was updated with the new bios). Intel choose and lock 52Hz and also select "Digital Flat panel (1024*768 60Hz)" inf in the device manager. On linux the drivers don't care and choose 3000*2000*59.99Hz.

The bios/Firmware update messed up everything.

Prior the Bios update I had a problem with screen flicker, then the manufacturer relased another bios to fix the problem.

With the 1st bios my monitor was identified as MONITOR/MEI96A2 vendor (surface book 13.5" windows update installed "SurfaceDisplay.inf").
Now with the 2nd bios it is MONITOR/MS_0003 so the edid/firmware was probably changed !!!

Do you know what I could do to get only the EDID or the screen firmware back but keep the new bios ?

Can I send you the bios and firmware file of the 2 bios ?
Can a windows EDID override fix the problem, or is it at a deeper level like screen firmware ?

Thank you and sorry it is not on the topic anymore...

(08-24-2020 08:33 PM)vigan1 Wrote: [ -> ]When I uninstall the Intel drivers, I can set back the "Generic PnP monitor" and indeed I see that the screen is 64Hz.

The default basic display driver always lists 64 Hz. That's not the true refresh rate. Are you able to set 60 Hz with CRU?

No it does not allow me to set anything but 52Hz.
But the other resolutions 50Hz and 25Hz, don't appear in Windows "Display adapter properties", the drop down menu only shows 52Hz.
EDIT : EVEN when I delete the 52Hz resolution in CRU, then put another one at 25Hz, after restart the 52Hz is back !!!

I can't select them also in the intel Graphic control Panel, it only show 52Hz, and I can't set custom resolution there (out of range even if I create a 800*600*30Hz...).

But CRU works and the custom resolutions can be found; in the intel control panel, under "Option and Support" "Built-in display" "supported Modes", here I can see the 2 of them listed alongside the Locked "3000 x 2000 (52p Hz)". But I can't choose them.

I really think the EDID or firmware is flawed. And the intel driver can only use the range 52Hz to 52Hz.
When I capture the EDID of my HDMI screen the range is 50 to 75Hz.

Any idea what it could be ? I am lost.

My panel is Panasonic MEI96A2, product name VVX14P048M00.
I found an EDID here : https://linux-hardware.org/index.php?pro...2&log=edid
Can someone make me an EDID override INF from this ?

EDIT : Hi guys I reinstalled windows, then installed the latest intel drivers here (igfx_win10_100.8587.exe).
I am still locked at 52Hz. Then I Used CRU deleted the 52Hz Resolution from it. Added another one at 50Hz, Restarted.
Here is the result after the restart : the 52Hz is still there, and I can't select another resolution but the 52hz :
https://i.postimg.cc/FKgTJ1KP/Capture.png

Second method : I used Ntlite to remove all Monitor drivers/INF from the ISO. Installed the modified iso, and intel drivers still pick 52Hz !!!
Is it possible to lock a screen refresh rate from the bios ?
I will recheck under linux and see if I have real 60hz or dropped frames.