Arch Linux

agowa338

Member

Registered: 2024-06-16

Posts: 7

3840x2160 @ 60 Hz?

Hi,

I'm a bit confused about not being able to select 60Hz for 3840x2160 (I only have 30, 25, and 24Hz), can anyone explain why exactly it is unavailable for me?
Especially because I'm able to select 2560x1600@60Hz and 50% scale (Interestingly here my only option is 60Hz, it doesn't offer anything lower, and anything equal to or below 1920x1080 has 60,50,30, and 24).
Shouldn't that technically require more bandwidth over HDMI?

I've the NVIDIA 3060 with the Nouveau driver.

Last edited by agowa338 (2024-06-16 16:50:45)

seth

Member

From: Won't reply 2 private help req

Registered: 2012-09-03

Posts: 75,946

Re: 3840x2160 @ 60 Hz?

Shouldn't that technically require more bandwidth over HDMI?

No, you're rendering 5120x3200 but that gets scaled down to 2560x1600 for the HDMI signal.

https://en.wikipedia.org/wiki/HDMI#Refr … dard_video
https://bbs.archlinux.org/viewtopic.php … 6#p2167246 ?

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agowa338

Member

Registered: 2024-06-16

Posts: 7

Re: 3840x2160 @ 60 Hz?

Thanks, that wikipedia table now sparks a slightly different question, why isn't 3840x2160 @ 60 Hz working to begin with. The monitor and cable should be at least HDMI 2.0 and I suppose that the same is true for the nvidia 3060 even without the proprietary driver...

seth

Member

From: Won't reply 2 private help req

Registered: 2012-09-03

Posts: 75,946

Re: 3840x2160 @ 60 Hz?

There's no "HDMI 2.0" cable, you need a "Premium High Speed HDMI Cable"
Also try the binary driver (or displayport, at least AMD famousely has legal issues surrounding their HDMI 2.1 support) and post the  output of

for OUT in /sys/class/drm/card*; do echo $OUT; edid-decode $OUT/edid; echo "================="; done

You'll need https://aur.archlinux.org/packages/edid-decode-git

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agowa338

Member

Registered: 2024-06-16

Posts: 7

Re: 3840x2160 @ 60 Hz?

the cable was advertised with HDMI 2.0b though https://www.amazon.de/gp/product/B015WV0YES

/sys/class/drm/card0
/sys/class/drm/card0/edid: No such file or directory
=================
/sys/class/drm/card0-DP-1
EDID of '/sys/class/drm/card0-DP-1/edid' was empty.
=================
/sys/class/drm/card0-DP-2
EDID of '/sys/class/drm/card0-DP-2/edid' was empty.
=================
/sys/class/drm/card0-DP-3
EDID of '/sys/class/drm/card0-DP-3/edid' was empty.
=================
/sys/class/drm/card0-HDMI-A-1
edid-decode (hex):

00 ff ff ff ff ff ff 00 4d d9 04 7c 01 01 01 01
01 1c 01 03 80 7a 44 78 0a 0d c9 a0 57 47 98 27
12 48 4c 21 08 00 81 80 a9 c0 71 4f b3 00 01 01
01 01 01 01 01 01 04 74 00 30 f2 70 5a 80 b0 58
8a 00 c2 ad 42 00 00 1e 02 3a 80 18 71 38 2d 40
58 2c 45 00 c2 ad 42 00 00 1e 00 00 00 fc 00 53
4f 4e 59 20 54 56 20 20 2a 30 30 0a 00 00 00 fd
00 30 3e 0e 46 1e 00 0a 20 20 20 20 20 20 01 a2

02 03 4d f0 57 5d 5e 5f 62 1f 10 14 05 13 04 20
22 3c 3e 12 16 03 07 11 15 02 06 01 2c 0d 7f 07
15 07 50 3d 07 bc 57 06 00 83 0f 00 00 6e 03 0c
00 10 00 b8 3c 2f 00 80 01 02 03 04 e2 00 f9 e3
05 ff 01 e5 0e 60 61 65 66 e3 06 0d 01 01 1d 00
72 51 d0 1e 20 6e 28 55 00 c2 ad 42 00 00 1e 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 39

----------------

Block 0, Base EDID:
  EDID Structure Version & Revision: 1.3
  Vendor & Product Identification:
    Manufacturer: SNY
    Model: 31748
    Made in: week 1 of 2018
  Basic Display Parameters & Features:
    Digital display
    Maximum image size: 122 cm x 68 cm
    Gamma: 2.20
    RGB color display
    First detailed timing is the preferred timing
  Color Characteristics:
    Red  : 0.6250, 0.3398
    Green: 0.2802, 0.5947
    Blue : 0.1552, 0.0703
    White: 0.2832, 0.2978
  Established Timings I & II:
    DMT 0x04:   640x480    59.940476 Hz   4:3     31.469 kHz     25.175000 MHz
    DMT 0x09:   800x600    60.316541 Hz   4:3     37.879 kHz     40.000000 MHz
    DMT 0x10:  1024x768    60.003840 Hz   4:3     48.363 kHz     65.000000 MHz
  Standard Timings:
    DMT 0x23:  1280x1024   60.019740 Hz   5:4     63.981 kHz    108.000000 MHz
    DMT 0x53:  1600x900    60.000000 Hz  16:9     60.000 kHz    108.000000 MHz (RB)
    DMT 0x15:  1152x864    75.000000 Hz   4:3     67.500 kHz    108.000000 MHz
    DMT 0x3a:  1680x1050   59.954250 Hz  16:10    65.290 kHz    146.250000 MHz
  Detailed Timing Descriptors:
    DTD 1:  3840x2160   30.000000 Hz  16:9     67.500 kHz    297.000000 MHz (1218 mm x 685 mm)
                 Hfront  176 Hsync  88 Hback  296 Hpol P
                 Vfront    8 Vsync  10 Vback   72 Vpol P
    DTD 2:  1920x1080   60.000000 Hz  16:9     67.500 kHz    148.500000 MHz (1218 mm x 685 mm)
                 Hfront   88 Hsync  44 Hback  148 Hpol P
                 Vfront    4 Vsync   5 Vback   36 Vpol P
    Display Product Name: 'SONY TV  *00'
    Display Range Limits:
      Monitor ranges (GTF): 48-62 Hz V, 14-70 kHz H, max dotclock 300 MHz
  Extension blocks: 1
Checksum: 0xa2

----------------

Block 1, CTA-861 Extension Block:
  Revision: 3
  Underscans IT Video Formats by default
  Basic audio support
  Supports YCbCr 4:4:4
  Supports YCbCr 4:2:2
  Native detailed modes: 0
  Video Data Block:
    VIC  93:  3840x2160   24.000000 Hz  16:9     54.000 kHz    297.000000 MHz
    VIC  94:  3840x2160   25.000000 Hz  16:9     56.250 kHz    297.000000 MHz
    VIC  95:  3840x2160   30.000000 Hz  16:9     67.500 kHz    297.000000 MHz
    VIC  98:  4096x2160   24.000000 Hz 256:135   54.000 kHz    297.000000 MHz
    VIC  31:  1920x1080   50.000000 Hz  16:9     56.250 kHz    148.500000 MHz
    VIC  16:  1920x1080   60.000000 Hz  16:9     67.500 kHz    148.500000 MHz
    VIC  20:  1920x1080i  50.000000 Hz  16:9     28.125 kHz     74.250000 MHz
    VIC   5:  1920x1080i  60.000000 Hz  16:9     33.750 kHz     74.250000 MHz
    VIC  19:  1280x720    50.000000 Hz  16:9     37.500 kHz     74.250000 MHz
    VIC   4:  1280x720    60.000000 Hz  16:9     45.000 kHz     74.250000 MHz
    VIC  32:  1920x1080   24.000000 Hz  16:9     27.000 kHz     74.250000 MHz
    VIC  34:  1920x1080   30.000000 Hz  16:9     33.750 kHz     74.250000 MHz
    VIC  60:  1280x720    24.000000 Hz  16:9     18.000 kHz     59.400000 MHz
    VIC  62:  1280x720    30.000000 Hz  16:9     22.500 kHz     74.250000 MHz
    VIC  18:   720x576    50.000000 Hz  16:9     31.250 kHz     27.000000 MHz
    VIC  22:  1440x576i   50.000000 Hz  16:9     15.625 kHz     27.000000 MHz
    VIC   3:   720x480    59.940060 Hz  16:9     31.469 kHz     27.000000 MHz
    VIC   7:  1440x480i   59.940060 Hz  16:9     15.734 kHz     27.000000 MHz
    VIC  17:   720x576    50.000000 Hz   4:3     31.250 kHz     27.000000 MHz
    VIC  21:  1440x576i   50.000000 Hz   4:3     15.625 kHz     27.000000 MHz
    VIC   2:   720x480    59.940060 Hz   4:3     31.469 kHz     27.000000 MHz
    VIC   6:  1440x480i   59.940060 Hz   4:3     15.734 kHz     27.000000 MHz
    VIC   1:   640x480    59.940476 Hz   4:3     31.469 kHz     25.175000 MHz
  Audio Data Block:
    Linear PCM:
      Max channels: 6
      Supported sample rates (kHz): 192 176.4 96 88.2 48 44.1 32
      Supported sample sizes (bits): 24 20 16
    AC-3:
      Max channels: 6
      Supported sample rates (kHz): 48 44.1 32
      Maximum bit rate: 640 kb/s
    DTS:
      Max channels: 6
      Supported sample rates (kHz): 48 44.1 32
      Maximum bit rate: 1504 kb/s
    Enhanced AC-3 (DD+):
      Max channels: 8
      Supported sample rates (kHz): 48 44.1
  Speaker Allocation Data Block:
    FL/FR - Front Left/Right
    LFE1 - Low Frequency Effects 1
    FC - Front Center
    BL/BR - Back Left/Right
  Vendor-Specific Data Block (HDMI), OUI 00-0C-03:
    Source physical address: 1.0.0.0
    Supports_AI
    DC_36bit
    DC_30bit
    DC_Y444
    Maximum TMDS clock: 300 MHz
    Supported Content Types:
      Graphics
      Photo
      Cinema
      Game
    Extended HDMI video details:
      HDMI VICs:
        HDMI VIC 1:  3840x2160   30.000000 Hz  16:9     67.500 kHz    297.000000 MHz
        HDMI VIC 2:  3840x2160   25.000000 Hz  16:9     56.250 kHz    297.000000 MHz
        HDMI VIC 3:  3840x2160   24.000000 Hz  16:9     54.000 kHz    297.000000 MHz
        HDMI VIC 4:  4096x2160   24.000000 Hz 256:135   54.000 kHz    297.000000 MHz
  Video Capability Data Block:
    YCbCr quantization: Selectable (via AVI YQ)
    RGB quantization: Selectable (via AVI Q)
    PT scan behavior: Supports both over- and underscan
    IT scan behavior: Always Underscanned
    CE scan behavior: Always Overscanned
  Colorimetry Data Block:
    xvYCC601
    xvYCC709
    sYCC601
    opYCC601
    opRGB
    BT2020cYCC
    BT2020YCC
    BT2020RGB
    Gamut Boundary Description Metadata Profile P0
  YCbCr 4:2:0 Video Data Block:
    VIC  96:  3840x2160   50.000000 Hz  16:9    112.500 kHz    594.000000 MHz
    VIC  97:  3840x2160   60.000000 Hz  16:9    135.000 kHz    594.000000 MHz
    VIC 101:  4096x2160   50.000000 Hz 256:135  112.500 kHz    594.000000 MHz
    VIC 102:  4096x2160   60.000000 Hz 256:135  135.000 kHz    594.000000 MHz
  HDR Static Metadata Data Block:
    Electro optical transfer functions:
      Traditional gamma - SDR luminance range
      SMPTE ST2084
      Hybrid Log-Gamma
    Supported static metadata descriptors:
      Static metadata type 1
  Detailed Timing Descriptors:
    DTD 3:  1280x720    60.000000 Hz  16:9     45.000 kHz     74.250000 MHz (1218 mm x 685 mm)
                 Hfront  110 Hsync  40 Hback  220 Hpol P
                 Vfront    5 Vsync   5 Vback   20 Vpol P
Checksum: 0x39  Unused space in Extension Block: 32 bytes
=================
/sys/class/drm/card1
/sys/class/drm/card1/edid: No such file or directory
=================
/sys/class/drm/card1-VGA-1
EDID of '/sys/class/drm/card1-VGA-1/edid' was empty.
=================
/sys/class/drm/card1-Virtual-1
EDID of '/sys/class/drm/card1-Virtual-1/edid' was empty.
=================

Last edited by agowa338 (2024-06-17 16:05:09)

seth

Member

From: Won't reply 2 private help req

Registered: 2012-09-03

Posts: 75,946

Re: 3840x2160 @ 60 Hz?

At least the edid only advertises 3840x2160@60 for YUV420, so try the nvidia binary driver and in doubt force the subsampling.
nb. that if you want to inspect the edid this way w/ the binary driver (and in general), enable https://wiki.archlinux.org/title/NVIDIA … de_setting - use the "nvidia_drm.modeset=1" kernel parameter.

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agowa338

Member

Registered: 2024-06-16

Posts: 7

Re: 3840x2160 @ 60 Hz?

Using the binary drivers will be a bigger task...
Last time I tried them I only got a black screen after the login through sddm. And even when I tried switching from Wayland to X I had a bunch of graphical glitches. I then rolled back to using the Nouveau driver again.
The wiki page for the nvidia driver didn't help much in trying to resolve these issues.

seth

Member

From: Won't reply 2 private help req

Registered: 2012-09-03

Posts: 75,946

Re: 3840x2160 @ 60 Hz?

Make sure to not skip any of the installation steps in the wiki and in doubt ask back.

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