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August 24, 2022 05:45
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How I got 4K video resolution working with an older Intel graphics chipset (Ubuntu 20.04, Samsung U32R59x)
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| #!/bin/bash | |
| # cvt 2560 1440 30 | |
| # xrandr --newmode "2560x1440_30.00" 146.25 2560 2680 2944 3328 1440 1443 1448 1468 -hsync +vsync | |
| # xrandr --addmode HDMI-1 2560x1440_30.00 | |
| # xrandr --output HDMI-1 --mode 2560x1440_30.00 | |
| # This one is easier on the eyes than 3840x2160 @24Hz: | |
| # cvt -r 2560 1440 60 | |
| # 2560x1440 59.95 Hz (CVT 3.69M9-R) hsync: 88.79 kHz; pclk: 241.50 MHz | |
| xrandr --newmode "2560x1440R" 241.50 2560 2608 2640 2720 1440 1443 1448 1481 +hsync -vsync | |
| xrandr --addmode HDMI-1 2560x1440R | |
| xrandr --output HDMI-1 --mode 2560x1440R | |
| # cvt -r 3840 2160 60 | |
| # 3840x2160 59.97 Hz (CVT 8.29M9-R) hsync: 133.25 kHz; pclk: 533.00 MHz | |
| # xrandr --newmode "3840x2160R" 533.00 3840 3888 3920 4000 2160 2163 2168 2222 +hsync -vsync | |
| # xrandr --addmode HDMI-1 3840x2160R | |
| # xrandr --output HDMI-1 --mode 3840x2160R | |
| # Doesn't work for me: xrandr: Configure crtc 0 failed | |
| # cvt 3840 2160 60 | |
| # 3840x2160 59.98 Hz (CVT 8.29M9) hsync: 134.18 kHz; pclk: 712.75 MHz | |
| # xrandr --newmode "3840x2160_60.00" 712.75 3840 4160 4576 5312 2160 2163 2168 2237 -hsync +vsync | |
| # xrandr --addmode HDMI-1 3840x2160_60.00 | |
| # xrandr --output HDMI-1 --mode 3840x2160_60.00 | |
| # Doesn't work for me: xrandr: Configure crtc 0 failed | |
| # cvt 3840 2160 30 | |
| # 3840x2160 29.98 Hz (CVT) hsync: 65.96 kHz; pclk: 338.75 MHz | |
| # xrandr --newmode "3840x2160_30.00" 338.75 3840 4080 4488 5136 2160 2163 2168 2200 -hsync +vsync | |
| # xrandr --addmode HDMI-1 3840x2160_30.00 | |
| # xrandr --output HDMI-1 --mode 3840x2160_30.00 | |
| # Doesn't work for me: xrandr: Configure crtc 0 failed | |
| #cvt 3840 2160 24 | |
| # 3840x2160 23.99 Hz (CVT) hsync: 52.59 kHz; pclk: 266.75 MHz | |
| xrandr --newmode "3840x2160_24.00" 266.75 3840 4056 4456 5072 2160 2163 2168 2192 -hsync +vsync | |
| xrandr --addmode HDMI-1 3840x2160_24.00 | |
| xrandr --output HDMI-1 --mode 3840x2160_24.00 |
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| # After determing that 3840x2160 worked at 24Hz, I created this file as | |
| # /usr/share/X11/xorg.conf.d/10-monitor.conf | |
| # in order to have the settings survive reboots. | |
| Section "Monitor" | |
| Identifier "HDMI-1" | |
| Modeline "2560x1440R" 241.50 2560 2608 2640 2720 1440 1443 1448 1481 +hsync -vsync | |
| Modeline "3840x2160_24.00" 266.75 3840 4056 4456 5072 2160 2163 2168 2192 -hsync +vsync | |
| Option "PreferredMode" "3840x2160_24.00" | |
| # Option "PreferredMode" "2560x1440R" | |
| EndSection |
where does one put/execute these files to test this out?
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Thanks a lot! It helped me.
This mode is a little bit better:
Modeline "3840x2160U" 297.0 3840 4016 4104 4400 2160 2168 2178 2250 +hsync +vsync