luafox
Posts: 7
Joined: Mon Jul 02, 2012 7:08 pm

Monitor definition

Fri Nov 09, 2012 8:48 am

I have a monitor supporting 1680 x 1050 and I would like to to change the settings of the Raspberry Pi so that it uses the native resolution of the monitor. Can anyone suggest the best way to achive this? I know that I need to change the config.txt file but I am not sure in which way. For the alpha release of RISC OS I found an example for 1680 x 1050 which I tries yesterday but this looks completly blured so that it's hard to read any text on the screen, also it still shows black areas at the top and bottom of the screen.

So can anybody suggest the right settings?

Do you need an additional MDF?

Thanks,
Michael

grannyg
Posts: 22
Joined: Fri Nov 02, 2012 11:55 am

Re: Monitor definition

Fri Nov 09, 2012 2:15 pm

luafox wrote:I have a monitor supporting 1680 x 1050 and I would like to to change the settings of the Raspberry Pi so that it uses the native resolution of the monitor. Can anyone suggest the best way to achive this? I know that I need to change the config.txt file but I am not sure in which way. For the alpha release of RISC OS I found an example for 1680 x 1050 which I tries yesterday but this looks completly blured so that it's hard to read any text on the screen, also it still shows black areas at the top and bottom of the screen.
You shouldn't need to change the config.txt with the release distribution. You just need an appropriate MDF (Monitor definition file) entry.
Here's one with just 1680 x 1050 @60Hz. You can test it by saving it as a file and using 'loadmodefile <filename>'.


file_format:1
monitor_title:Test Mode
DPMS_state:0

# 1680 x 1050 (60Hz)
startmode
mode_name:1680 x 1050
x_res:1680
y_res:1050
pixel_rate:112411
h_timings:32,18,14,1680,0,20
v_timings:5,16,0,1050,0,0
sync_pol:3
endmode

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