Olimex Support Forum

OLinuXino Android / Linux boards and System On Modules => A20 => Topic started by: armandob on September 26, 2013, 10:21:20 AM

Title: [SOLVED] 4:3 resolution on HDMI
Post by: armandob on September 26, 2013, 10:21:20 AM
Hi all,
i trying to set hdmi script.fex to 1024x768 resolution but after script.bin generation and reboot, resolution don't change.
Is there a procedure to do it ?
i have a 4:3 monitor with hdmi input so i see stretched image using 1024x600

thanks
Title: Re: [SOLVED] 4:3 resolution on HDMI
Post by: armandob on September 26, 2013, 04:58:26 PM
I solved my problem:
as describe this post http://www.the-greathouses.net/blog/2013/03/setting-pcduino-display-resolution/
setting screen0_output_mode = 27 monitor is setting to 1280x1024p60.

So i modified change_display.sh script to set this resolution
http://pastebin.com/77vnC9Uq

i added at line 54 and line case 27 at line 260

bye
Title: Re: [SOLVED] 4:3 resolution on HDMI
Post by: hkramski on February 15, 2014, 01:03:30 PM
Thanks, that was exactly what I needed for my old Eizo L568 LCD Monitor which didn't accept the default HDMI modes.

I simply added your sections to the current change_display_a20.sh and all works well.

I only get a static purple/blueish border approx 2 pixels wide on the left and on the bottom of the screen. Any idea how to get rid of this and center the active screen correctly?

Regards,
   Heinz

Title: Re: [SOLVED] 4:3 resolution on HDMI
Post by: armandob on February 17, 2014, 11:27:38 AM
Hi Heinz,
have you tryed latest Debian Image (R5) ?
Also i had some strange video problems using first images but from R3 it work fine.
Title: Re: [SOLVED] 4:3 resolution on HDMI
Post by: hkramski on February 17, 2014, 11:14:27 PM
Yes, I'm on R5 (this is my first, brand new board with an SD card from the shop).

But it's only a small cosmetic issue; HDMI output in general is much better than VGA on my monitor.

Regards,
   Heinz
Title: Re: [SOLVED] 4:3 resolution on HDMI
Post by: JakobKrainz on March 26, 2014, 08:51:25 PM
Quote from: armandob on September 26, 2013, 10:21:20 AM
Hi all,
i trying to set hdmi script.fex to 1024x768 resolution but after script.bin generation and reboot, resolution don't change.
Is there a procedure to do it ?
i have a 4:3 monitor with hdmi input so i see stretched image using 1024x600

thanks

Are you sure the original resolution was 1024x600?

I have a display with that resolution, and i can not find a way to get it to use that resolution...