TV Does Not Want To Play Ball

[Pauljoanss]

Have set up Config file for upstairs TV (Ferguson F2206LVD, 22" HD Ready LCD) and successfully made connection thro HDMI input.
Config File as follows :-
hdmi_group=1
hdmi_mode=19
hdmi_drive=2
# Group 1 for HDTV, Mode 19 for 720P 50 Hz., Drive 2 for HDMI voltage and audio

But have no success with main TV downstairs (Philips 32 PF 7520D/10 HD Ready LCD). This TV has only DVI input so I use an adaptor plug to connect HDMI cable. First tried tis config file:-
hdmi_group=1
hdmi_mode=20
hdmi_drive=1
# Group 1 for HDTV, Mode 20 for 1080i 50 Hz., Drive 1 for DVI voltage and no audio
Did not work so tried all sorts including no config file. Message on screen either "no input signal" or "format not supported".
Connection with composite video works ok.
I have noticed on other TV that if cable not connected at startup then connecting cable later does not work. On this TV it defaults to "TV" source so I switch on RasPI then change source to either "HD" or "PC" (not sure what the difference). Could the TV be missing some important start up data.
Any ideas would be welcome, I will try them and report back.

Regards

[drgeoff]

Try powering up the TV and selecting the DVI input before powering up the RPi.

Also see http://elinux.org/R-Pi_Troubleshooting# ... put_at_all if you haven't already.

[Pauljoanss]

Thanks for reply Drgeoff.
Have tried switching source to HD or PC before powering PI, but still nothing, have tried with & without config file.
I think I was wrong about TV defaulting back TV, the source menu always shows TV highlighted but info button shows up HD or PC in top RtH corner of screen, so believe it holds the source once switched.

Just about to post this, then at my 100th attempt stuff came up on the screen. Have found this only happens if I switch source to PC then wait about 5 secs until message displayed "no input signal" and at that point power up PI. The PC logo on screen then turns to PC-D. The display is not across the full screen (4:3?) and text is a bit small.
This only works with no config file and does not work with HD selected as the input, only PC. Do not understand the difference between these two inputs.
So this is progress, but would still like to use a config file to control size etc.

[drgeoff]

I've been trying to look at the user manual for your TV but although the Philips web site recognises the 32PF7520D/10 number it is playing silly bu**ers and jumping to a country selection page!

TVs with DVI but not HDMI are a bit uncommon. I think it is a fairly safe bet that the 'D'bit of 'PC-D' means that the digital input on the DVI connector is being used as opposed to the analogue inputs - VGA compatible - on that same connector. (PC-A would be the logo for that.)

And the 'PC' bit would signify accepting PC type resolutions (1024 by 768 etc) whereas TV would be 720p and 1080i.

None of the above solves your basic problem though! Have you tried any of:

hdmi_safe=1
hdmi_force_hotplug=1
config_hdmi_boost =n (for n from 4 to 7)
(http://elinux.org/RPiconfig)

[Pauljoanss]

Have just looked at manual and see :-

Configure the computer on 1024 x 768, 60 Hz for optimum resolution.
Here is the list of the different display resolutions available on your TV:
640x480,60Hz 800x600,56Hz 1024x768,60Hz 640x480,67Hz 800x600,60Hz 1024x768,70Hz 640x480,72Hz 800x600,72Hz 1024x768,75Hz 640x480,75Hz 800x600,75Hz
720x400,70Hz 832x624,75Hz

I had not bothered looking at this before because I assumed with HDMI connection I would be using the HD input.
Based on this information would you like to suggest a config listing.
Note I will not be able to test until tonight when wife has gone to bed and "released" the TV remote.
Thanks for the help.

[rurwin]

Using

Code: Select all

hdmi_force_hotplug=1

would remove the timing issues you have.

One of the first things the RaspPi does on boot is to check that it has something connected to HDMI. If it doesn't then it switches to composite. It doesn't hang around waiting and you don't get a second chance. So if the TV is not ready to accept a digital signal when the RaspPi boots, then the RaspPi will never send it one. "hdmi_force_hotplug=1" tells the RaspPi to use HDMI, even if it sees no ready recipient.

Of course if you put that line in, then you can't use composite.