https://bugs.kde.org/show_bug.cgi?id=510440
--- Comment #2 from Wyatt Childers <[email protected]> --- It looks like there's a driver issue stopping DisplayPort 2.1 from picking up on VRR (good to know and explains why the option wasn't present in the display settings). Looking around it looks like the kernel and AMDGPU are still a bit funky with DisplayPort 2.1. Output: 1 DP-5 51046780-5a25-4933-9bc5-37575a80c0e6 enabled connected priority 1 DisplayPort replication source:0 Modes: 1:7680x2160@120! 2:7680x2160@60 3:3840x1080@60 4:7680x2160@240* 5:3840x2160@240 6:3840x2160@120 7:3840x2160@120 8:3840x2160@60 9:3840x2160@60 10:3840x2160@30 11:3840x2160@30 12:5120x1440@240 13:5120x1440@120 14:5120x1440@60 15:3840x1080@240 16:3840x1080@120 17:2560x1440@240 18:2560x1440@120 19:2560x1440@60 20:1920x1080@240 21:1920x1080@120 22:1920x1080@120 23:1920x1080@60 24:1920x1080@60 25:1920x1080@60 26:1680x1050@60 27:1600x900@60 28:1280x1024@75 29:1280x1024@60 30:1440x900@60 31:1280x800@60 32:1152x864@75 33:1280x720@60 34:1280x720@60 35:1280x720@60 36:1024x768@75 37:1024x768@70 38:1024x768@60 39:800x600@75 40:800x600@72 41:800x600@60 42:720x480@60 43:720x480@60 44:640x480@75 45:640x480@60 46:640x480@60 47:1600x1200@60 48:1600x1200@240 49:1280x1024@240 50:1024x768@240 51:2560x1600@60 52:2560x1600@240 53:1920x1200@60 54:1920x1200@240 55:1280x800@240 56:3200x1800@60 57:3200x1800@240 58:2880x1620@60 59:2880x1620@240 60:1600x900@240 61:1368x768@60 62:1368x768@240 63:1280x720@240 Geometry: 0,0 7680x2160 Scale: 1 Rotation: 1 Overscan: 0 Vrr: incapable RgbRange: unknown HDR: enabled SDR brightness: 500 nits SDR gamut wideness: 0% Peak brightness: 1015 nits, overridden with: 1015 nits Max average brightness: 604 nits Min brightness: 0 nits Wide Color Gamut: enabled ICC profile: none Color profile source: sRGB Color power preference: prefer efficiency and performance Brightness control: supported, set to 100% and dimming to 100% Color resolution: automatic (8), range: [8; 16] bits per color Allow EDR: unsupported Perhaps interestingly ... the display port mode (to try some options) on the monitor to 1.4 and back to 2.1 made it come back. Changing back to 1.4 fixed it, but then coming back to 2.1 made it come back. So, perhaps the DisplayPort renegotiation is enough to reset whatever is happening as well. I turned off VRR / FreeSync Premium on the monitor side BEFORE switching back to DisplayPort 2.1 this time; so I'll be curious to see if it comes back / if perhaps that itself did something. Do you want a screen recording in software, or a video on my phone next time it happens? -- You are receiving this mail because: You are watching all bug changes.
