LinuxQuestions.org - Samsung LCD TFT monitor Not Optimum Mode

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Samsung LCD TFT monitor Not Optimum Mode

In the Samsung 710n ou 510n, the messagem "not optimum mode - recommended 1280 x 1024 60Hz" is a hardware problem.
There is no configuration to solve this problem.

I've tried to reply the question in a forum, but it's my first post and you know... Couldn't reply.

Important: The warranty solves the problem without any cost.

Third post. Can I answer now?

Check the display settings in your X config file. make sure it is set to deafult to 1280x1024 in teh Modes seciton.

/etc/X11/xorg.conf is the config file.. or your distro may have a graphical tool you can use to make the changes but you didn't mention what you are running so....

Code:

Section "Monitor"

        Identifier      "Visual SensatKDS"

        HorizSync      30-64

        VertRefresh    50-60

        Option          "DPMS"

EndSection



Section "Screen"

        Identifier      "Default Screen"

        Device          "Generic Video Card"

        Monitor        "Visual SensatKDS"

        DefaultDepth    16

        SubSection "Display"

                Depth          1

                Modes          "800x600" "640x480"

        EndSubSection

        SubSection "Display"

                Depth          4

                Modes          "800x600" "640x480"

        EndSubSection

        SubSection "Display"

                Depth          8

                Modes          "1024x768" "800x600" "640x480"

        EndSubSection

        SubSection "Display"

                Depth          15

                Modes          "1024x768" "800x600" "640x480"

        EndSubSection

        SubSection "Display"

                Depth          16

                Modes          "1280x1024" "1024x768" "800x600" "640x480"

        EndSubSection

        SubSection "Display"

                Depth          24

                Modes          "1280x1024" "1024x768" "800x600" "640x480"

        EndSubSection

EndSection

the config above defaults to 16 Bit color at a res of 1280x1024.. at 60 Hz... of course the vrt and horiz rates in this config are for my LCD display your's may be a little different.

Hello I am from Brazil and work with monitor repair.
I wold like to know how to solve this not optimum mode bug on 510n! wich interface i use to acess the lcd config?
thank you!:cry:

please! This is an assamble code?

Code:

Section "Monitor"

        Identifier      "Visual SensatKDS"

        HorizSync      30-64

        VertRefresh    50-60

        Option          "DPMS"

EndSection



Section "Screen"

        Identifier      "Default Screen"

        Device          "Generic Video Card"

        Monitor        "Visual SensatKDS"

        DefaultDepth    16

        SubSection "Display"

                Depth          1

                Modes          "800x600" "640x480"

        EndSubSection

        SubSection "Display"

                Depth          4

                Modes          "800x600" "640x480"

        EndSubSection

        SubSection "Display"

                Depth          8

                Modes          "1024x768" "800x600" "640x480"

        EndSubSection

        SubSection "Display"

                Depth          15

                Modes          "1024x768" "800x600" "640x480"

        EndSubSection

        SubSection "Display"

                Depth          16

                Modes          "1280x1024" "1024x768" "800x600" "640x480"

        EndSubSection

        SubSection "Display"

                Depth          24

                Modes          "1280x1024" "1024x768" "800x600" "640x480"

        EndSubSection

EndSection

This is an assamble code?

That is my old X config to get default 1280x1024 @ 60 hz on my LCD flatscreen..

That is part of /etc/X11/xorg.conf

not that it mkes any difference but here is a section of my current config..

Code:

Section "Monitor"

        Identifier      "Generic Monitor"

        Option          "DPMS"

        HorizSync      30-82

        VertRefresh    50-76

EndSection



Section "Screen"

        Identifier      "Default Screen"

        Device          "NVIDIA Corporation NV20 [GeForce3]"

        Monitor        "Generic Monitor"

        DefaultDepth    24

        SubSection "Display"

                Depth          1

                Modes          "1280x1024" "1024x768" "800x600"

        EndSubSection

        SubSection "Display"

                Depth          4

                Modes          "1280x1024" "1024x768" "800x600"

        EndSubSection

        SubSection "Display"

                Depth          8

                Modes          "1280x1024" "1024x768" "800x600"

        EndSubSection

        SubSection "Display"

                Depth          15

                Modes          "1280x1024" "1024x768" "800x600"

        EndSubSection

        SubSection "Display"

                Depth          16

                Modes          "1280x1024" "1024x768" "800x600"

        EndSubSection

        SubSection "Display"

                Depth          24

                Modes          "1280x1024" "1024x768" "800x600"

        EndSubSection

EndSection

1280x1024 @ 75hz refresh is what I am getting from this config. perfect for my LCD.

Temporary FIX!!!

I found another site to night where someone seems to have found a temporary solution. "UNPLUG the monitor from the power supply for about 5 - 10 minutes". The CPU can be left on but unplug it from the power source and not just behind the monitor. Then after it comes back on, change your mode/display settings. I had to wiggle the power cord on the back of the monitor a few times when the blippen message can back again. But after a few wiggles and changing the mode lower than the recommended 1280 X 1024, I finally got it to work. This seems to be a temporary fix from what I read. After a while the problem came back for the other users since it is a problem with a switch/connection or something in the monitor plug. I guess this is a known problem with SAMSUNG. If your monitor is still under warranty, contact them and they will repair it or maybe even replace it. :) I hope this works for you as well since it took me about 4 days to find something that works other than VGA mode. Good luck and I hope this helps.

Dave

The problem is related to heating. So do not waste time on settings.

Just cool it.

I learned it with my Samsung 710N, by 34 degree Celsius.