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How to set display refresh rate to 120Hz via HDMI?

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I have a display that supports 280 Hz and although I'm limited to an old Intel HD610 via HDMI, **on Windows I'm able to set the refresh rate up to 120 Hz** (checked on display menu), but on Linux I can only go to 99 Hz maximum. What I'm doing: cvt 1920 1080 120 Which prints: # 1920x1080 119.93 Hz (CVT) hsync: 139.12 kHz; pclk: 369.50 MHz Modeline "1920x1080_120.00" 369.50 1920 2080 2288 2656 1080 1083 1088 1160 -hsync +vsync Then: xrandr --newmode "1920x1080_120.00" 369.50 1920 2080 2288 2656 1080 1083 1088 1160 -hsync +vsync And: xrandr --addmode HDMI1 1920x1080_120.00 Finally, when I try to set this custom refresh rate (via Xfce Display app), nothing happens; it goes back to the previous refresh rate. I did the same process with 90 Hz and it worked, but that's the maximum I could go. My xorg (v1.20.10) log contains this interesting information: intel(0): Using Kernel Mode Setting driver: i915, version 1.6.0 20190822 [ 3.606] (II) intel(0): Supported standard timings: [ 3.606] (II) intel(0): #0: hsize: 1280 vsize 720 refresh: 60 vid: 49281 [ 3.606] (II) intel(0): #1: hsize: 1280 vsize 720 refresh: 75 vid: 53121 [ 3.606] (II) intel(0): #2: hsize: 1280 vsize 800 refresh: 60 vid: 129 [ 3.606] (II) intel(0): #3: hsize: 1280 vsize 800 refresh: 75 vid: 3969 [ 3.606] (II) intel(0): #4: hsize: 1920 vsize 1080 refresh: 60 vid: 49361 [ 3.606] (II) intel(0): #5: hsize: 1920 vsize 1080 refresh: 85 vid: 55761 [ 3.606] (II) intel(0): #6: hsize: 1920 vsize 1080 refresh: 100 vid: 59601 [ 3.606] (II) intel(0): #7: hsize: 1920 vsize 1080 refresh: 120 vid: 64721
Asked by Fulalas (119 rep)
Feb 9, 2021, 08:21 AM
Last activity: Mar 7, 2025, 03:35 PM