Hi all,
I struggle to setup 60 Hz refresh rate with my dual 4K monitor setup with Fedora 37 (tested both Wayland and Xorg, no difference). Both monitors work when set to 29.9 Hz refresh rate. Also, if I connect just one monitor, I can get 60 Hz refresh rate, too. Changed cables, no difference.
Also, when testing, I found a couple of weird issues. If I configure monitors (in gnome setup gui) to run at 29.9 Hz, and switch them to 60 Hz latter on, they seem to work (at least the gui confirms they do run in 60Hz, and xrandr confirms that). However, if I check information available in monitor itself (it can report about it’s status), I can clearly see the refresh rate stays at 29.9. Also, if I boot Windows 11 on the same laptop (I have a dualboot setup), everything works and monitors do run at 60 Hz (confirmed both in monitor and in Windows). And it should, I have double checked with Lenovo display and resolution matrix for the laptop and the dock. The dock is Thunderbolt 4 (40B0). Both monitors are Eizo FlexScan 4K.
Output of inxi -CMGxxS --edid
System:
Host: x1cg10 Kernel: 6.2.8-200.fc37.x86_64 arch: x86_64 bits: 64
compiler: gcc v: 2.38-25.fc37
parameters: BOOT_IMAGE=(hd0,gpt4)/vmlinuz-6.2.8-200.fc37.x86_64
root=UUID=21c0f8bd-c529-418d-a076-db0b3f15c3b1 ro
resume=UUID=3be0a800-d877-43e9-9b8a-4f1f0a26a160
rd.luks.uuid=luks-9d7333f7-28b9-49d4-9780-d8cff8349146 rhgb quiet
Desktop: GNOME v: 43.4 tk: GTK v: 3.24.37 wm: gnome-shell dm: GDM v: 43.0
Distro: Fedora release 37 (Thirty Seven)
Machine:
Type: Laptop System: LENOVO product: 21CB007WCK v: ThinkPad X1 Carbon Gen 10
serial: <superuser required> Chassis: type: 10 serial: <superuser required>
Mobo: LENOVO model: 21CB007WCK v: SDK0T76530 WIN
serial: <superuser required> UEFI: LENOVO v: N3AET72W (1.37 )
date: 03/02/2023
CPU:
Info: model: 12th Gen Intel Core i7-1260P bits: 64 type: MST AMCP
arch: Alder Lake level: v3 note: check built: 2021+
process: Intel 7 (10nm ESF) family: 6 model-id: 0x9A (154) stepping: 3
microcode: 0x429
Topology: cpus: 1x cores: 12 mt: 4 tpc: 2 st: 8 threads: 16 smt: enabled
cache: L1: 1.1 MiB desc: d-8x32 KiB, 4x48 KiB; i-4x32 KiB, 8x64 KiB
L2: 9 MiB desc: 4x1.2 MiB, 2x2 MiB L3: 18 MiB desc: 1x18 MiB
Speed (MHz): avg: 1775 high: 2500 min/max: 400/4700:3400 scaling:
driver: intel_pstate governor: powersave cores: 1: 2500 2: 2500 3: 574
4: 2500 5: 664 6: 2500 7: 586 8: 2500 9: 2500 10: 400 11: 646 12: 538
13: 2500 14: 2500 15: 2500 16: 2500 bogomips: 79872
Flags: avx avx2 ht lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx
Vulnerabilities:
Type: itlb_multihit status: Not affected
Type: l1tf status: Not affected
Type: mds status: Not affected
Type: meltdown status: Not affected
Type: mmio_stale_data status: Not affected
Type: retbleed status: Not affected
Type: spec_store_bypass mitigation: Speculative Store Bypass disabled via
prctl
Type: spectre_v1 mitigation: usercopy/swapgs barriers and __user pointer
sanitization
Type: spectre_v2 mitigation: Enhanced IBRS, IBPB: conditional, RSB
filling, PBRSB-eIBRS: SW sequence
Type: srbds status: Not affected
Type: tsx_async_abort status: Not affected
Graphics:
Device-1: Intel Alder Lake-P Integrated Graphics vendor: Lenovo driver: i915
v: kernel arch: Gen-12.2 process: Intel 10nm built: 2021-22+ ports:
active: DP-7,DP-8,eDP-1 empty: DP-1, DP-2, DP-3, DP-4, DP-5, DP-6, DP-9,
HDMI-A-1 bus-ID: 00:02.0 chip-ID: 8086:46a6 class-ID: 0300
Device-2: Elgato Systems GmbH Cam Link 4K type: USB
driver: hid-generic,snd-usb-audio,usbhid,uvcvideo bus-ID: 2-3.4.4.2:6
chip-ID: 0fd9:0066 class-ID: 0102 serial: 0005D00980000
Display: wayland server: X.org v: 1.20.14 with: Xwayland v: 22.1.9
compositor: gnome-shell driver: X: loaded: modesetting unloaded: fbdev,vesa
dri: iris gpu: i915 d-rect: 9600x3360 display-ID: 0
Monitor-1: DP-7 pos: primary,top-left res: 3840x2160 size: N/A modes: N/A
Monitor-2: DP-8 pos: top-right res: 3840x2160 size: N/A modes: N/A
Monitor-3: eDP-1 pos: bottom-c res: 1920x1200 size: N/A modes: N/A
API: OpenGL v: 4.6 Mesa 22.3.7 renderer: Mesa Intel Graphics (ADL GT2)
direct-render: Yes
Monitor 1:
Block 0, Base EDID:
EDID Structure Version & Revision: 1.4
Vendor & Product Identification:
Manufacturer: ENC
Model: 9622
Serial Number: 48885047
Made in: week 17 of 2017
Basic Display Parameters & Features:
Digital display
Bits per primary color channel: 8
DisplayPort interface
Maximum image size: 70 cm x 40 cm
Gamma: 2.20
DPMS levels: Standby Suspend Off
Supported color formats: RGB 4:4:4, YCrCb 4:4:4, YCrCb 4:2:2
First detailed timing includes the native pixel format and preferred refresh rate
Color Characteristics:
Red : 0.6425, 0.3457
Green: 0.2812, 0.6396
Blue : 0.1406, 0.0507
White: 0.3134, 0.3291
Established Timings I & II:
IBM : 720x400 70.081663 Hz 9:5 31.467 kHz 28.320000 MHz
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 0x33: 1600x1200 60.000000 Hz 4:3 75.000 kHz 162.000000 MHz
DMT 0x45: 1920x1200 59.884600 Hz 16:10 74.556 kHz 193.250000 MHz
DMT 0x3a: 1680x1050 59.954250 Hz 16:10 65.290 kHz 146.250000 MHz
DMT 0x1c: 1280x800 59.810326 Hz 16:10 49.702 kHz 83.500000 MHz
DMT 0x53: 1600x900 60.000000 Hz 16:9 60.000 kHz 108.000000 MHz (RB)
DMT 0x55: 1280x720 60.000000 Hz 16:9 45.000 kHz 74.250000 MHz
Detailed Timing Descriptors:
DTD 1: 3840x2160 59.995989 Hz 16:9 133.311 kHz 519.380000 MHz (697 mm x 392 mm)
Hfront 24 Hsync 16 Hback 16 Hpol P
Vfront 3 Vsync 5 Vback 54 Vpol N
DTD 2: 1920x1080 60.000000 Hz 16:9 67.500 kHz 148.500000 MHz (697 mm x 392 mm)
Hfront 88 Hsync 44 Hback 148 Hpol P
Vfront 4 Vsync 5 Vback 36 Vpol P
Display Range Limits:
Monitor ranges (GTF): 29-61 Hz V, 31-134 kHz H, max dotclock 540 MHz
Display Product Name: 'EV3237'
Extension blocks: 1
Checksum: 0xcb
----------------
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 16: 1920x1080 60.000000 Hz 16:9 67.500 kHz 148.500000 MHz
VIC 34: 1920x1080 30.000000 Hz 16:9 33.750 kHz 74.250000 MHz
VIC 4: 1280x720 60.000000 Hz 16:9 45.000 kHz 74.250000 MHz
VIC 3: 720x480 59.940060 Hz 16:9 31.469 kHz 27.000000 MHz
VIC 2: 720x480 59.940060 Hz 4:3 31.469 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: 1
Supported sample rates (kHz): 96 88.2 48 44.1 32
Supported sample sizes (bits): 24 20 16
Speaker Allocation Data Block:
FL/FR - Front Left/Right
Detailed Timing Descriptors:
DTD 3: 3840x2160 29.980602 Hz 16:9 65.688 kHz 262.750000 MHz (697 mm x 392 mm)
Hfront 48 Hsync 32 Hback 80 Hpol P
Vfront 3 Vsync 5 Vback 23 Vpol N
DTD 4: 1920x2160 59.987970 Hz 8:9 133.293 kHz 277.250000 MHz (697 mm x 392 mm)
Hfront 48 Hsync 32 Hback 80 Hpol P
Vfront 3 Vsync 10 Vback 49 Vpol N
DTD 5: 3840x1080 59.968497 Hz 32:9 66.625 kHz 266.500000 MHz (697 mm x 392 mm)
Hfront 48 Hsync 32 Hback 80 Hpol P
Vfront 3 Vsync 10 Vback 18 Vpol N
DTD 6: 2560x1440 59.950550 Hz 16:9 88.787 kHz 241.500000 MHz (697 mm x 392 mm)
Hfront 48 Hsync 32 Hback 80 Hpol P
Vfront 3 Vsync 5 Vback 33 Vpol N
DTD 7: 2560x1600 59.971589 Hz 8:5 98.713 kHz 268.500000 MHz (697 mm x 392 mm)
Hfront 48 Hsync 32 Hback 80 Hpol P
Vfront 3 Vsync 10 Vback 33 Vpol N
Checksum: 0x60 Unused space in Extension Block: 18 bytes
Monitor 2:
Block 0, Base EDID:
EDID Structure Version & Revision: 1.4
Vendor & Product Identification:
Manufacturer: ENC
Model: 10609
Serial Number: 44705080
Made in: week 32 of 2020
Basic Display Parameters & Features:
Digital display
Bits per primary color channel: 8
DisplayPort interface
Maximum image size: 70 cm x 40 cm
Gamma: 2.20
DPMS levels: Standby Suspend Off
Supported color formats: RGB 4:4:4, YCrCb 4:4:4, YCrCb 4:2:2
First detailed timing includes the native pixel format and preferred refresh rate
Color Characteristics:
Red : 0.6494, 0.3378
Green: 0.3105, 0.6328
Blue : 0.1494, 0.0576
White: 0.3134, 0.3291
Established Timings I & II:
IBM : 720x400 70.081663 Hz 9:5 31.467 kHz 28.320000 MHz
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 0x33: 1600x1200 60.000000 Hz 4:3 75.000 kHz 162.000000 MHz
DMT 0x45: 1920x1200 59.884600 Hz 16:10 74.556 kHz 193.250000 MHz
DMT 0x3a: 1680x1050 59.954250 Hz 16:10 65.290 kHz 146.250000 MHz
DMT 0x1c: 1280x800 59.810326 Hz 16:10 49.702 kHz 83.500000 MHz
DMT 0x53: 1600x900 60.000000 Hz 16:9 60.000 kHz 108.000000 MHz (RB)
DMT 0x55: 1280x720 60.000000 Hz 16:9 45.000 kHz 74.250000 MHz
Detailed Timing Descriptors:
DTD 1: 3840x2160 59.996625 Hz 16:9 133.312 kHz 533.250000 MHz (698 mm x 393 mm)
Hfront 48 Hsync 32 Hback 80 Hpol P
Vfront 3 Vsync 5 Vback 54 Vpol N
DTD 2: 1920x1080 60.000000 Hz 16:9 67.500 kHz 148.500000 MHz (698 mm x 393 mm)
Hfront 88 Hsync 44 Hback 148 Hpol P
Vfront 4 Vsync 5 Vback 36 Vpol P
Display Range Limits:
Monitor ranges (GTF): 29-61 Hz V, 31-134 kHz H, max dotclock 540 MHz
Display Product Name: 'EV3285'
Extension blocks: 1
Checksum: 0x9a
----------------
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: 1
Video Data Block:
VIC 16: 1920x1080 60.000000 Hz 16:9 67.500 kHz 148.500000 MHz
VIC 34: 1920x1080 30.000000 Hz 16:9 33.750 kHz 74.250000 MHz
VIC 4: 1280x720 60.000000 Hz 16:9 45.000 kHz 74.250000 MHz
VIC 3: 720x480 59.940060 Hz 16:9 31.469 kHz 27.000000 MHz
VIC 2: 720x480 59.940060 Hz 4:3 31.469 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: 2
Supported sample rates (kHz): 192 176.4 96 88.2 48 44.1 32
Supported sample sizes (bits): 24 20 16
Speaker Allocation Data Block:
FL/FR - Front Left/Right
Detailed Timing Descriptors:
DTD 3: 3840x2160 29.980602 Hz 16:9 65.688 kHz 262.750000 MHz (698 mm x 393 mm)
Hfront 48 Hsync 32 Hback 80 Hpol P
Vfront 3 Vsync 5 Vback 23 Vpol N
DTD 4: 2560x1440 59.950550 Hz 16:9 88.787 kHz 241.500000 MHz (698 mm x 393 mm)
Hfront 48 Hsync 32 Hback 80 Hpol P
Vfront 3 Vsync 5 Vback 33 Vpol N
Checksum: 0x84 Unused space in Extension Block: 72 bytes
Thank you