HowTo: Setting up resolution 1600x900

[Abelard]

HowTo: Setting up resolution 1600x900 & 1366x768   ?
&how can i set up other resolutions those are not in h3disp like 1600x900
board is orangepi-pc

[tommy]

There is no official support for those resolution on legacy kernel. Only mainline kernel supports those resolutions.

[Igor]

... but by observing this patch and doing some search and reading results, one can add new screen resolution on his own.

[Abelard]

On 2018/3/1 at 6:41 PM, Igor said:

... but by observing this patch and doing some search and reading results, one can add new screen resolution on his own.

which patch can add 1600x900 ?

[jernej]

3 hours ago, Abelard said:

which patch can add 1600x900 ?

I'm not sure there is one. Igor just gave you pointers to create it.

[Abelard]

I have already downloaded the patch,but there is no 1600*900.Can you help me add 1600*900 to the patch or tell me the way how to create it.Thanks

[Tido]

1 hour ago, Abelard said:

tell me the way how to create it.

you go here  https://docs.armbian.com/Process_Contribute/   to: How? 

 

on Igor's link I have collected the headlines per section:

The lines  153, 190 and 301 table look like the bit it is needed to add your screen.

Now look at those lines and ask your Monitor Vendor, the manual of your Monitor, Google, Yahoo or Bing  about this information for your device.

 

Once you have this information:

you go here  https://docs.armbian.com/Process_Contribute/   to: How? 

and Booooom  everything works.

[Abelard]

I dont know how to add in line 153,190 and 301.And i dont know how to use the link you gave,https://docs.armbian.com/Process_Contribute/, Can you help me plz.The patch i downloaded from the link that Igor gave. I really need more heip,thanks.

[Tido]

give a man a fish and you feed him for a day; teach a man to fish and you feed him for a lifetime

 

I showed you how to fish ;-)

[Abelard]

I'm trying to add something in line 153,190 and 301.But how can i get the information about those line with the resolution i want(1600*900),Can you  tell me how to find these informations,thanks. 

[Tido]

Good - you got it.

Well, I am self are looking for such information for

800x600
1024x600
1920x1200

 

I search for display timing and the  resolution.. it is a bit of a pain - but I don't know any better

[Tido]

Is your display connected to a Linux Desktop where everything works, than you can try that:

 

=== Commands to read out the EDID of the Monitor - open two terminal windows and try:

in one:
man xrandr  (here you can find a lot)

 

in the other:
xrandr --verbose

[Tido]

Haven't read it yet, looks interesting: https://en.wikipedia.org/wiki/Extended_Display_Identification_Data

[Tido]

coming closer to the solution: http://www.arunviswanathan.com/node/53

Using xrandr and gtf to add a new mode to your X configuration at runtime.

 

Now I don't know how much the difference is between x86 & ARM  in that regard, but that tool seems to calculate the appropriate numbers..

[Abelard]

I cant open the website:http://www.arunviswanathan.com/node/53,And have you find the way to add?

[Abelard]

On 2018/3/1 at 6:41 PM, Igor said:

... but by observing this patch and doing some search and reading results, one can add new screen resolution on his own.

Hi,Igor. I got some informations about 1600*900, but i dont know how to build a new patch, can you help me to build?

Thanks

 

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+    {HDMI1600_900P,      0,119000000, 0,  1600,   900,  2128,  264,   96, 168,   932,  28,  1,  3,  0,   1,   0,    0,  0},

 

pll_video = 476