changing the resolutiion

[Jakester]

Not sure if this belonged on the sold-run forums, the xbmc forums or here. So I will try here first/

I am using OpenELEC_Helix (official) Version: devel-20140711235128-r18724-g357c9d3

I am trying to connect my cubox-i4 to an older HDTV via a HDMI->DVI adapter. The TV supports 480i/480p/1080i. When I boot up the screen is a bunch of lines that just or not viewable due to what I believe is a resolution mismatch. I was able to get the splash screen to display by changing the uEnv.trxt to set the resolution to 720x480M@60 but as soon as XBMC starts up I get the messed up resolution again.
I checked the xbmc.log file and see the following:

Code:

23:16:03 T:1983680512 NOTICE: Found resolution 1280 x 720 for display 0 with 1280 x 720 @ 60.000000 Hz
23:16:03 T:1962931280 ERROR: CecLogMessage - Write: sent command error !
23:16:03 T:1983680512 NOTICE: Found resolution 720 x 576 for display 0 with 720 x 576 @ 50.000000 Hz
23:16:03 T:1983680512 NOTICE: Previous line repeats 1 times.
23:16:03 T:1983680512 NOTICE: Found resolution 720 x 480 for display 0 with 720 x 480 @ 60.000000 Hz
23:16:03 T:1983680512 NOTICE: Previous line repeats 1 times.
23:16:03 T:1983680512 NOTICE: Found resolution 640 x 480 for display 0 with 640 x 480 @ 60.000000 Hz
23:16:03 T:1983680512 NOTICE: Found (1280x720@60.000000) at 16, setting to RES_DESKTOP at 16

How can I change this so that xbmc uses 720x480? I tried editing the guisettings.xml but it seems to get overwritten. I tried adding the settings to the advancesettings.xml but that didnt seem to work but to be truthful I am not sure what values should be set .
I know on the rasPi you can add a config.txt so I tried adding the following to /flash/config.txt but that didnt see to do anything

Code:

#HDMI settings
hdmi_ignore_cec_init=1
hdmi_ignore_cec=1
hdmi_group=1
hdmi_drive=2
hdmi_mode=5

I did hook up the box via HDM->DVI to a monitor and it shows everything correctly. I thought I might be able to go the the xbmc settings and choose my preferred resolution but there were only two available and neither was what I was looking for.

Any help would be appreciated.

[Jakester]

After messing around a little I found

Code:

sys/devices/soc0/mxc_sdc_fb.27/graphics/fb0 # cat modes
S:1280x720p-60
S:720x576p-50
S:720x576p-50
S:720x480p-60
S:720x480p-60
S:640x480p-60
V:640x480p-60
D:720x480p-59
V:640x480p-60

I tried the following for each mode

Code:

echo 1 > /sys/class/graphics/fb0/blank
echo S:1280x720p-60 > /sys/class/graphics/fb0/mode
echo 0 > /sys/class/graphics/fb0/blank

The only mode I was able to see anything on was S:640x480p-60 which only displayed the upper left corner of the screen so not much was viewable.

Still not much further but it is something

[Jakester]

So....

When I originally got into xbmc I bought a raspberryPi. Hooking it up to my older screen was done via an HDMI to DVI adapter. I order to extract the audio stream I used an HDMI audio extractor (http://www.jtechdigital.com/video-access...erter.html) that was placed inline between the raspberry and the tv. After the raspberry got taken out by lightening I decided to upgrade to the cubox-i4. I just hooked up the cubox in place of the raspberry and I got the results as documented in the above posts.
Last night I was thinking that the only thing I have not tried was to remove the HDMI audio extractor and plug the cubox directly into the DVI adapter since the cubox already has the SPDIF output I really didnt need this audio extractor anymore. I reconfigured the cables and power on and while I did not see a viewable post screen once openelec started up the splash screen displayed. The display resolution is 720x480p but I can live with it for now until they fix the problems with interlacing which I hope will fix the issue with the cubox not outputting at 1080i.
I am posting this so that other who may being using a home theatre passthough will not bang their heads against the wall for as long as I did. I am not sure what the audio extractor was doing to the signal but it must have been blocking something from getting through.
If I cat the modes now I get:

Code:

OpenELEC:~ # cat /sys/devices/soc0/mxc_sdc_fb.27/graphics/fb0/modes
V:640x480p-60
D:720x480p-59
V:640x480p-60

which is what I expected before.');