[SOLVED] 2560x1440 resolution linux

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drcasper
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[SOLVED] 2560x1440 resolution linux

Post by drcasper » Thu May 28, 2015 2:36 am

Hi,

I am trying to setup the resolution on my monitor to 2560x1440 but i end up with 1920x1080.

I run:

LMDE2
NVIDIA GeForce 210
Drivers Nvidia 340.65 from LMDE2 repo
Single monitor: Benq GW2765
Using (pc) DVI to (monitor) HDMI cable

My xorg.cong:

Code: Select all

Section "ServerLayout"
    Identifier     "Layout0"
    Screen      0  "Screen0"
    InputDevice    "Keyboard0" "CoreKeyboard"
    InputDevice    "Mouse0" "CorePointer"
EndSection

Section "Files"
EndSection

Section "InputDevice"
    # generated from default
    Identifier     "Mouse0"
    Driver         "mouse"
    Option         "Protocol" "auto"
    Option         "Device" "/dev/psaux"
    Option         "Emulate3Buttons" "no"
    Option         "ZAxisMapping" "4 5"
EndSection

Section "InputDevice"
    # generated from default
    Identifier     "Keyboard0"
    Driver         "kbd"
EndSection

Section "Monitor"
    Identifier     "Monitor0"
    VendorName     "Unknown"
    ModelName      "Unknown"
    HorizSync       28.0 - 33.0
    VertRefresh     43.0 - 72.0
    Option         "DPMS"
#override
	Modeline "2560x1440_60.0"  241.50  2560 2608 2640 2720  1440 1443 1448 1481 +hsync -vsync
#end override
EndSection

Section "Device"
    Identifier     "Device0"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
EndSection

Section "Screen"
    Identifier     "Screen0"
    Device         "Device0"
    Monitor        "Monitor0"
    DefaultDepth    24
#override
	Option "IgnoreEDIDChecksum" "DFP-1"
	Option "ExactModeTimingsDVI" "TRUE"
	Option "ModeValidation" "NoDFPNativeResolutionCheck"
#end override
    SubSection     "Display"
#override
	Modes "2560x1440"
	Modes "2560x1440_60.0"
#end override
        Depth       24
    EndSubSection
EndSection
Last edited by drcasper on Thu Jun 04, 2015 1:54 pm, edited 2 times in total.
Image

DanielR
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Re: 2560x1440 resolution linux

Post by DanielR » Thu May 28, 2015 3:14 am

According to the monitor specs it should have a DVI connector as well. HDMI may be the bottleneck here depending on the specs of your DVI to HDMI converter (HDMI 1.0 supports max. 1920x1200). Please try a DVI cable and see if you can get the full resolution of your monitor.

vl1969
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Post by vl1969 » Thu May 28, 2015 5:39 am

As DanielR says, try using dvi, but even with dvi make sure you are using proper dvi type cable, capable of the resolution. I spend 2 weeks fighting with my monitor and pc, inly to find out my cable was wrong. Not only there are 2 type dvi, single and double, you will need double , but not every cable support resolution this high either.

Sent from my phone

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drcasper
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Re: 2560x1440 resolution linux

Post by drcasper » Thu May 28, 2015 8:16 am

DanielR wrote:According to the monitor specs it should have a DVI connector as well. HDMI may be the bottleneck here depending on the specs of your DVI to HDMI converter (HDMI 1.0 supports max. 1920x1200). Please try a DVI cable and see if you can get the full resolution of your monitor.
I will try DVI cable.

I did tried a high speed HDMI cable that came with the screen but with the same result.
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drcasper
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Re:

Post by drcasper » Thu Jun 04, 2015 1:51 pm

vl1969 wrote:As DanielR says, try using dvi, but even with dvi make sure you are using proper dvi type cable, capable of the resolution. I spend 2 weeks fighting with my monitor and pc, inly to find out my cable was wrong. Not only there are 2 type dvi, single and double, you will need double , but not every cable support resolution this high either.

Sent from my phone
Problem solved with DVI dual link cable.
Attachments
81189_500x500.jpg
DVI dual link
Image

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