I would like to change resolution with my HDMI monitor

Discussion in 'Android' started by zaccy, Apr 21, 2014.

  1. zaccy

    zaccy New Member

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    Dear all,

    Can I change the resolution for my HDMI monitor with android 4.3..
    should I compile kernel or source..?
    I have no LCD...
    for example, I want to change my monitor to 1440x900...

    if anyone aleady have the solution, give me some about it... please...

    Sorry for my poor English..
    Thanks...
     
  2. iddqd

    iddqd Member

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  3. sumotoy

    sumotoy New Member

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    I followed the link and in terminal I sent this command:
    Code:
    root@udoo:/# setenv bootargs console=ttymxc1,115200 init=/init video=mxcfb0:dev=hdmi,1280x1024M@60,if=RGB24,bpp=32 video=mxcfb1:off video=mxcfb2:off fbmem=28M vmalloc=400M androidboot.console=ttymxc1 androidboot.hardware=freescale mem=1024M
    As result I got:
    Code:
    root@udoo:/#
    The I've tried to send the save environment command as proposed:
    Code:
    root@udoo:/# saveenv
    But gived this error:

    Code:
    /system/bin/sh: saveenv: not found 127|
    Rebooting will not help, I got the same screen resolution as before. Would you tell me exactly where I'm wrong?
     
  4. zaccy

    zaccy New Member

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  5. zaccy

    zaccy New Member

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    MX6DL UDOO U-Boot > saveenv
    Saving Environment to MMC...
    Writing to MMC(2)... done

    You should execute command "saveenv" on [u-boot consol] like this...
    For access to [u-boot consol],
    you can see the file "http://udoo.org/download/files/Documents/UDOO_Starting_Manual_beta0.4_11_28_2013.pdf"
    page 18... Gook luck..
     
  6. sumotoy

    sumotoy New Member

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    thanks, I'll try !
     
  7. zaccy

    zaccy New Member

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    i've tried those commands..

    # setenv bootargs console=ttymxc1,115200 init=/init video=mxcfb0:dev=hdmi,1440x900M@60,if=RGB24,bpp=32 ...
    # saveenv
    # boot

    everything was ok..

    But after boot, it was displayed only 600x480 resolution...

    and then i have do several test... like this..
    < Udoo Android Version> <Monitor that we have> <Result>
    1. udoo_dual_android_2.0/2.0.1 1400x900 X
    2. udoo_dual_android_2.0/2.0.1 1280x1024 X
    3. udoo_dual_android_2.0/2.0.1 1920x1080 O
    4. udoo_dual_android_1.4.1 1400x900 O

    and then i had another test to change the resolution on the android consol with udoo_dual_android_2.0/2.0.1
    # wm size 1440x900
    # wm density XXX
    i could change the size(1440x900), but i can't get the exactly density for my monitor....

    Does anybody know about this result? help me.. plz....
     
  8. zaccy

    zaccy New Member

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    i have found another issue....
    http://www.element14.com/community/thre ... ed-android

    By using HDMI <-> DVI convert will not work....
    But i don't know why the previous UDOO_Android version did work for my same monitor(1440x900)..
    I think there is a little difference in kernel between 4.3 and 4.2....
     

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