Fresh install of Linux Mint 20.2 Uma - 2560x1440p option not showing for external monitor

[doublehelix1118]

Problem:

As mentioned in the post title, I've done a fresh install of Linux Mint 20.2 Uma. After the install, I've tried to change the display resolution to 2560x1440p but the option is not available. It always defaults to the maximum available resolution of 1080p.

I've tried the following commands...

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cvt 2560 1440 55
xrandr --newmode "2560x1440_55.00"  284.00  2560 2744 3016 3472  1440 1443 1448 1489 -hsync +vsync
xrandr --addmode HDMI-1 2560x1440_55.00
xrandr --output HDMI-1 --mode 2560x1440_55.00

but I keep getting the error as below...

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xrandr: Configure crtc 0 failed

My system is a dual boot with Windows 10. I have no issues with displaying in 1440p resolution on Windows.

System details are as mentioned below:

Laptop Model: Lenovo ThinkPad T430s
CPU: Intel i5-3320M (4) @ 3.300GHz
GPU: Mesa DRI Intel(R) HD Graphics 4000 (IVB GT2)
OS: Linux Mint 20.2 x86_64
Kernel: 5.4.0-90-generic x86_64
Desktop Environment: Cinnamon 5.0.7
Window Manager: Muffin 5.0.2
Display Manager: LightDM 1.30.0


Any help to fix my display resolution to show in 1440p would be appreciated.

[AndyMH]

What is the monitor make and model? Assume you are connecting mini DP port to HDMI on the monitor?

[doublehelix1118]

What is the monitor make and model? Assume you are connecting mini DP port to HDMI on the monitor?

@AndyMH:
Many thanks for your response.
I'm using a Prism+ W270 Pro monitor (Product Page)
Your assumption is accurate. I am using a MiniDisplay Port to HDMI adapter to connect to the HDMI port in the monitor.

[AndyMH]

Try cvt without specifying the refresh rate cvt 2560 1440 and see if that modeline works. If not:
viewtopic.php?f=46&t=280143
It's a long thread, but basically get the modeline with read-edid direct from the monitor.

[doublehelix1118]

@AndyMH:

Thanks for your reply. I've tried both approaches that you have suggested. Still no luck.

The output from the command sudo get-edid -b 5 | parse-edid is as below.

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Section "Monitor"
        Identifier "HDMI"
        ModelName "HDMI"
        VendorName "SAC"
        # Monitor Manufactured week 28 of 2021
        # EDID version 1.3
        # Digital Display
        DisplaySize 600 330
        Gamma 2.20
        Option "DPMS" "true"
        Horizsync 50-113
        VertRefresh 48-75
        # Maximum pixel clock is 360MHz
        #Not giving standard mode: 1920x1080, 60Hz
        #Not giving standard mode: 1680x1050, 60Hz
        #Not giving standard mode: 1600x900, 60Hz
        #Not giving standard mode: 1440x900, 60Hz
        #Not giving standard mode: 1440x900, 60Hz
        #Not giving standard mode: 1280x1024, 60Hz
        #Not giving standard mode: 1024x768, 60Hz
        #Not giving standard mode: 800x600, 60Hz

        #Extension block found. Parsing...
        Modeline        "Mode 12" 296.00 2560 2568 2600 2666 1440 1443 1448 1481 +hsync -vsync 
        Modeline        "Mode 0" 246.90 2560 2608 2640 2760 1440 1443 1448 1491 +hsync +vsync 
        Modeline        "Mode 1" 148.500 1920 2008 2052 2200 1080 1084 1089 1125 +hsync +vsync
        Modeline        "Mode 2" 148.500 1920 2448 2492 2640 1080 1084 1089 1125 +hsync +vsync
        Modeline        "Mode 3" 74.250 1920 2008 2052 2200 1080 1082 1087 1125 +hsync +vsync interlace
        Modeline        "Mode 4" 74.250 1920 2448 2492 2640 1080 1082 1089 1125 +hsync +vsync interlace
        Modeline        "Mode 5" 74.250 1280 1390 1420 1650 720 725 730 750 +hsync +vsync
        Modeline        "Mode 6" 74.250 1280 1720 1760 1980 720 725 730 750 +hsync +vsync
        Modeline        "Mode 7" 27.027 720 736 798 858 480 489 495 525 -hsync -vsync
        Modeline        "Mode 8" 27.000 720 732 796 864 576 581 586 625 -hsync -vsync
        Modeline        "Mode 9" 27.027 720 736 798 858 480 489 495 525 -hsync -vsync
        Modeline        "Mode 10" 27.000 720 732 796 864 576 581 586 625 -hsync -vsync
        Modeline        "Mode 11" 25.200 640 656 752 800 480 490 492 525 -hsync -vsync
        Modeline        "Mode 13" 148.50 1920 2008 2052 2200 1080 1084 1089 1125 +hsync +vsync 
        Modeline        "Mode 14" 74.25 1920 2008 2052 2200 540 544 549 585 +hsync +vsync interlace
        Option "PreferredMode" "Mode 12"
EndSection

From this, I took "Mode 0" as the Modeline I need to add with the xrandr commands. Therefore, I typed in the following commands in the terminal.

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xrandr --newmode "2560x1440_1" 246.90 2560 2608 2640 2760 1440 1443 1448 1491 +hsync +vsync
xrandr --addmode HDMI-1 2560x1440_1
xrandr --output HDMI-1 --mode 2560x1440_1

The output from this is still the error message xrandr: Configure crtc 1 failed

Any other suggestions would be greatly appreciated.

[stevedonato]

If you are using the Nvidia video drivers try using the open source default drivers. I found Nvidia drivers would only support 1920x1080 period, and would not even support lower Res. or higher, since linux Mint 19 distribution. I have dell laptop 17 extreme processor and m3000 GPU 32Gb Ram