[Mini 2] HDMI-DVI converter failure (no screen)

xiaoli

@jamante @dni hi, did anybody really test 1024*768 with HDMI2dvi converter?

xiaoli

the resolution is required for my business. If anybody has solution, pls drop me an email. I d like to pay for your efforts once it works.

bronco

I just tried to add

1. hdmi_cts_compatibility = 0

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to the fex file and interchanged script.bin using a script I've written the last minutes: http://pastebin.com/5GLU7FgV

Then installed fbset and added

1. fbset "1024x768-60"

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to /etc/rc.local. Now I get 1024x768 on my display (its native resolution is 2560x1600), but the HDMI resolution still seems to be 1920x1080 and colors look a bit strange:

dni

Hi,

sorry i cant test it anymore, because my hdmi is also dead

But for me it worked with a hdmi2vga converter in 1024x768 and 1280x1024 with my kernel and script.bin.

I uploaded my latest Kernel one more time, maybe the other one was not the actuell one...

https://www.sendspace.com/file/936lid

xiaoli

hi guys, many thanks for your help! we'll try it.

bronco

dni replied at 2015-11-30 15:57
for me it worked with a hdmi2vga converter in 1024x768 and 1280x1024 with my kernel and script.bin

I tried it with your kernel and 1024x768 settings:

1. [disp_init]
   
2. disp_init_enable = 1
   
3. disp_mode = 0
   
4. screen0_output_type = 3
   
5. screen0_output_mode = 4
   
6. screen1_output_type = 3
   
7. screen1_output_mode = 10
   
8. fb0_format = 0
   
9. fb0_width = 0
   
10. fb0_height = 0
    
11. fb1_format = 0
    
12. fb1_width = 0
    
13. fb1_height = 0
    
14. 
    
15. [hdmi_para]
    
16. hdmi_used = 1
    
17. hdmi_power = "vcc-hdmi-18"
    
18. hdmi_cts_compatibility = 0

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It gets closer

roger_gz

dni replied at 2015-11-30 15:57
Hi,

sorry i cant test it anymore, because my hdmi is also dead

I have tried your image, the output is 1280*768. It seems the 1280 cannot be changed to 1024, maybe is is because HDMI supported resolution is 1280*720, there is not 1024*xxx supported in HDMI spec. Any idea?
Thanks!

Roger

dni

well, maybe its because of hdmi2dvi...
with my hdmi2vga adapter its definitly working with this kernel...
what is the value for pll_video in your script.fex?

try setting it to

1. pll_video = 432

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or try setting it to

1. pll_video = 260

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i cant remember :-)

btw.
has anyone tried to use gert vga 666 with orange pi?

bronco

dni replied at 2015-11-30 20:56
what is the value for pll_video in your script.fex?

I rely on loboris' settings (except of dvfs entries since I don't like overclocking/overvolting): https://github.com/loboris/Orang ... pi_pc.fex#L163-L169

roger_gz

dni replied at 2015-11-30 20:56
well, maybe its because of hdmi2dvi...
with my hdmi2vga adapter its definitly working with this kern ...

Hi Dni:

After change the PLL video to 260, it works ! The orange PI PC can display 1024*768 resolution through the HDMI to DVI converter without any issue. Is it the PLL video equals to the Pixel clock*4 such as 1024*768's pixel clock is 65, so the PLL_video is 65*4=260?
Really appreciated your help! Thanks a lot!

Roger