From: nospam@needed.invalid   
      
   On Tue, 11/25/2025 5:42 AM, Edmund wrote:   
   > On 11/25/25 10:25, Paul wrote:   
   >> On Tue, 11/25/2025 3:19 AM, Edmund wrote:   
   >>> On 11/24/25 17:52, Paul wrote:   
   >>>> On Mon, 11/24/2025 8:43 AM, Edmund wrote:   
   >>>>> Created Monitor Profiles are not shown.   
   >>>>>   
   >>>>> Trying to create a new one and it says : a profile of this name already   
   exists.   
   >>>>>   
   >>>>> How to solve this?   
   >>>   
   >>> Oh dear, that seems complicated.   
   >>>>   
   >>>> You are here ?   
   >>>>   
   >>>>      [Picture]   
   >>>>   
   >>>>       https://i.postimg.cc/d0rLd87G/LM222-Settings-Col   
   r-Gnome-Color-Manager.gif   
   >>>   
   >>> Nope, I am here :   
   >>> https://imgur.com/a/pLvgMHS   
   >>>   
   >>> In my Mint XFCE menu settings display.   
   >>> Here is a option to save profiles, it even seem to do so but it is   
   invisible.   
   >>   
   >> You've used the wrong port on the TV set.   
   >>   
   >> TV sets with multiple HDMI, only *one* of the ports   
   >> is for a PC. The PC port support multisync and   
   >> should be able to display anywhere from 640x480 to 1920x1080.   
   >   
   > Never heard of this.   
   >   
   >   
   >>   
   >> You've probably noticed, while the PC was booting, that the   
   >> TV set does not respond, until the desktop appears.   
   >   
   > Correct!   
   >   
   >> You're   
   >> on a "multimedia" HD input on the TV set. If there were   
   >> four HDMI, three would be multimedia type (connect to set top   
   >> box player for example), only one of the ports is PC   
   >> type and *has an EDID*.   
   >   
   > Don't know what that is.   
   >   
   >>   
   >> If the TV set will not report its details to the PC, the   
   >> EDID is the plug and play information it might like. This   
   >> is why you need to read the manual on the TV set and   
   >> identify the port to use.   
   >>   
   >> At some time in the past, they used a VGA connector for the PC   
   >> input, but today at 1920x1080, they use HDMI (or DisplayPort)   
   >> for the inputs. And there may be little in the way of   
   >> distinction except to see "PC" under one of them.   
   >>   
   >> *******   
   >>   
   >> So far, I know the unit as   
   >>   
   >>      samsung electric company 64"  120hz   
   >>   
   >> Do you have a model string for the thing ?   
   >> It would have a long string of letters.   
   >>   
   >>      Samsung QN65S90FAFXZC   
   >   
   >   
   > SAMSUNG GQ65Q9FNG   
   >>   
   >> If you give me a model number, I'll see if I can find   
   >> the manual with the I/O connector diagram on it. Since   
   >> you have the paper manual in hand though, you can   
   >> have a flip through to the short paragraph   
   >> on "PC operation".   
   >>   
   >> Once you're on the PC port, the behavior during boot   
   >> should change, and just maybe your menu will be populated.   
   >>   
   >>     Paul   
   >>   
   >   
      
   https://downloadcenter.samsung.com/content/UM/202011/20201116153   
   00517/KM2ATSCN-3.1.0_EM_Kant-M2_USA_ENG_201023.0.pdf   
      
      Page30 bottom   
      
     "When you have connected a PC, go to "Home" "->Source"   
      and then select the PC icon from the external device icon list.   
      
      For more information about the port settings,   
      refer to "Editing the name and icon of an external device". [Page34 top]   
     "   
      
   On Page 34   
      
      "Move the focus to the connected external device   
       [using the remote control, highlight the monitor icon near the   
        lower row of devices icons]   
      
       Press the up-directional button.   
      "   
      
   This is supposed to show some information about device characteristics, I   
   would guess.   
   As the manual in question is generic, that's all the help they give.   
      
   You can try different HDMI ports, until things improve I would guess.   
   But there really should be some text or a graphic under the "PC" HDMI input   
   which labels that the port is special.   
      
   Naturally, this is not what I was expecting. I was expecting one of the   
   HDMI or DP to be labeled "PC", and the wiring of the plug is slightly   
   different than the other inputs.   
      
   *******   
      
   Monitor devices have "SCLK" and "SDA" which is a clock with data interface   
   with a flow of serial information. This allows the IBM PC compatible, to   
   read the ROM inside the monitor, and extract the native resolution   
   information. Also inside the EDID table, is a namestring for the monitor.   
      
      https://en.wikipedia.org/wiki/Extended_Display_Identification_Data   
      
   This is a software primitive that Linux uses to acquire information   
   from the TV set, assuming the TV set has a "PC" port. read-edid should   
   extract 128 bytes or whatever. The amount of data is small, sort   
   of like how the SPD table on a DIMM is small.   
      
      https://manpages.ubuntu.com/manpages/jammy/man1/get-edid.1.html   
      
   *******   
      
   1 	TMDS Date 2+   
   2 	TMDS Data 2 shield   
   3 	TMDS Data 2-   
   4 	TMDS Data 1+   
   5 	TMDS Data 1 shield   
   6 	TMDS Data 1-   
   7 	TMDS Data 0+   
   8 	TMDS Data 0 shield   
   9 	TMDS Data 0-   
   10 	TMDS Clock+   
   11 	TMDS Clock shield   
   12 	TMDS Clock-   
   13 	CEC   
   14 	HEC Data-   
   15 	SCL (Serial Clock for DDC         \___ The PC fetches the EDID table from   
   16 	SDA (Serial Data Line for DDC     /    the monitor, via these two pins   
   17 	DDC / CEC / HEC Ground   
   18 	+5 V Power (50 mA max)   
   19 	Hot Plug Detect (1.3) / HEC Data+ (1.4)   
      
   The multimedia ports, might not have the pin 15 / pin 16 function,   
   which is why the "PC" HDMI port is the one to use.   
      
      Paul   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)