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

(03-27-2023 04:42 PM)sebastian.f Wrote: [ -> ]M32U was with DP cable and the TV has only HDMI 2.1

I dont have the M32U anymore but i have make some screenshots from cru before.

4k 144hz 8bit were great for me with DSR. But when iam set this DSR is not showing directly. I can try to restart or using cru reset64.exe.

edit: i have test 100hz, 4.2.0, 8bit but DSR is not showing :-(

I need you to export a file for the TV using CRU and post it here. 4:2:0 probably won't work with DSR either. Try RGB and YCbCr 4:4:4.

(03-27-2023 05:07 PM)Just_Chert Wrote: [ -> ]The thing is I try to add or edit a hertz frequency higher than 75 hertz, but the hertz profiles display in Windows 10 just does not change, just static display 4 profiles and it is 50/59/60/75 hertz, CRU settings are just ignored

What GPU? You said NVIDIA AMD. You should read the part about pixel clock limits in the first post.

(03-28-2023 01:02 AM)ToastyX Wrote: [ -> ]
(03-27-2023 05:07 PM)Just_Chert Wrote: [ -> ]The thing is I try to add or edit a hertz frequency higher than 75 hertz, but the hertz profiles display in Windows 10 just does not change, just static display 4 profiles and it is 50/59/60/75 hertz, CRU settings are just ignored
What GPU? You said NVIDIA AMD. You should read the part about pixel clock limits in the first post.

I have an RX 470 GPU and the latest amd driver at the time of writing this post, also the monitor and GPU are connected via HDMI 1.4, hence I need to add an extension unit for hdmi manually which would increase the frequency limit from 165mhz I understand correctly?

(03-28-2023 01:02 AM)ToastyX Wrote: [ -> ]
(03-27-2023 04:42 PM)sebastian.f Wrote: [ -> ]M32U was with DP cable and the TV has only HDMI 2.1

I dont have the M32U anymore but i have make some screenshots from cru before.

4k 144hz 8bit were great for me with DSR. But when iam set this DSR is not showing directly. I can try to restart or using cru reset64.exe.

edit: i have test 100hz, 4.2.0, 8bit but DSR is not showing :-(
I need you to export a file for the TV using CRU and post it here. 4:2:0 probably won't work with DSR either. Try RGB and YCbCr 4:4:4.

i have upload the file here: https://drive.google.com/file/d/1Rswxx0p...sp=sharing

I have also test Rgb and 4:4:4 before i set 4:2:0
Thanks for your help.

(03-28-2023 09:02 AM)sebastian.f Wrote: [ -> ]i have upload the file here: https://drive.google.com/file/d/1Rswxx0p...sp=sharing

I have also test Rgb and 4:4:4 before i set 4:2:0
Thanks for your help.

That's not the full EDID. The extension blocks are missing. Does CRU not show the extension blocks?

(03-28-2023 08:56 AM)Just_Chert Wrote: [ -> ]I have an RX 470 GPU and the latest amd driver at the time of writing this post, also the monitor and GPU are connected via HDMI 1.4, hence I need to add an extension unit for hdmi manually which would increase the frequency limit from 165mhz I understand correctly?

No, it already has an HDMI data block. "AMD/ATI's driver also listens to the maximum TMDS clock in the "HDMI support" data block. Make sure it's enabled and set to 340 MHz."

(03-28-2023 09:55 AM)ToastyX Wrote: [ -> ]
(03-28-2023 08:56 AM)Just_Chert Wrote: [ -> ]I have an RX 470 GPU and the latest amd driver at the time of writing this post, also the monitor and GPU are connected via HDMI 1.4, hence I need to add an extension unit for hdmi manually which would increase the frequency limit from 165mhz I understand correctly?
No, it already has an HDMI data block. "AMD/ATI's driver also listens to the maximum TMDS clock in the "HDMI support" data block. Make sure it's enabled and set to 340 MHz."

Thank you very much, I have increased the TMDS clock to 340 mhz and now I can raise the hertz frequency above 75 hertz on my monitor

P.S My monitor can hold frequency 80 hertz

(03-28-2023 09:53 AM)ToastyX Wrote: [ -> ]
(03-28-2023 09:02 AM)sebastian.f Wrote: [ -> ]i have upload the file here: https://drive.google.com/file/d/1Rswxx0p...sp=sharing

I have also test Rgb and 4:4:4 before i set 4:2:0
Thanks for your help.
That's not the full EDID. The extension blocks are missing. Does CRU not show the extension blocks?

no the field is empty :-(

(03-20-2023 04:21 AM)ToastyX Wrote: [ -> ]
(03-17-2023 10:19 PM)izy Wrote: [ -> ]Thanks for the reply , that is what i thought too but i had to be sure, i see no reason for DL on the monitor but in the manual says its DL (in the specs only says DVI-D) and I was wondering if indeed its DL if i could get an higher OC because of the higher bandwidth.
I was not sure about the tearing as i am not having tearing at 60hz but i am having it at 75hz and more noticeable if i cap the fps at 75fps, using like 72hz , 73hz without altering CRU timings has less tearing and thats why i was confused.

Edit: pic with the back of the board , seems that it has the pins for DVI-D DL soldered if i am not wrong:
https://i.ebayimg.com/images/g/1OoAAOSwE...-l1600.jpg
https://i.ebayimg.com/images/g/p5MAAOSwb...-l1600.jpg
You shouldn't cap the frame rate to the refresh rate. That's the worst thing you can do for tearing because you'll get a jiggling line. Tearing looks bad when the frame rate is close to the refresh rate. You want the frame rate to be as high as possible away from the refresh rate. If that's not achievable, then at least cap it to something a few frames below the refresh rate. Capping the frame rate to 70 FPS at 75 Hz will look better because the tearing won't be in one spot. The only way to avoid tearing completely is to use vsync, but that will add lag.

Most 60 Hz monitors are hard-coded to reject anything beyond 75-85 Hz. Using a dual-link DVI cable won't change what refresh rates the monitor will accept. The monitor and GPU have no way of knowing if you're using a single-link or dual-link cable. The GPU always sends a single-link signal up to 165 MHz pixel clock and a dual-link signal beyond 165 MHz no matter what cable is being used. The patcher raises that to 230 MHz. If the monitor actually supports dual-link DVI, then you won't need the patcher beyond 165 MHz. If the monitor only supports single-link DVI and the GPU sends a dual-link signal, the monitor will ignore the other link and the resolution will have a blocky look with half the pixels missing unless you use the patcher to send a single-link signal. That 165 MHz switchover is exact by the way, so anything beyond that is a monitor limitation.

Thanks for explanation.

(03-26-2023 09:43 PM)ToastyX Wrote: [ -> ]That's all you need to do to add the resolution. Make sure to delete the old resolution in the other extension block so that doesn't take effect.

Ok so that was the issue and now it's applying, however if I edit the vertical blanking until it downclocks or use CVT-RB(2) it can go down to 200 Hz but the monitor starts to perform really poorly. There's a noticeable input delay and the refresh rate definitely isn't 165 Hz even if it's reported as such. I can't say for sure but it feels and looks like it's just 60 Hz. Even the UFO test says it's 165 Hz but maybe it's just reading what Windows is reporting.
I tried copypasting my default 165 Hz timings (that trigger max VRAM clock) to make sure what I'm editing actually works and yes, it does perform as it should.

This is how CRU looks by default, I copy the top resolution timings, delete the extension block and add a new DisplayID 2.0 one with the pasted timings and then edit them. If I apply that and restard I only have two selectable refresh rates in Windows: 60 Hz (I'm assuming this is the detailed resolution in the main window of CRU at the top) and the 165 Hz one I created.