Splash videos too big for 7" screen

[lackyluuk]

Sorry, I forgot to mention my hardware:

• Board: RPi 3B+

[ian57]

@lackyluuk some users reported this too... We are going to check and try to adapt video to screen. Thanks for reporting.

[ian57]

@lackyluuk the /etc/init.d/S06splash script is based on the height of the framebuffer to display the video.

# cut -d, -f2 /sys/class/graphics/fb0/virtual_size
1024

On my 4/3 1280x1024 screen the videos are well displayed. But as the videos are natively in 1920x1080, there are black stripes at the top and bottom.

As your resolution is not standard, the value returned by the function must not be good.

Try to add the following configuration at the end of the /boot/config.txt file to tune your own resolution

disable_overscan=1
hdmi_group=2
hdmi_mode=87
hdmi_cvt=1024 600 3 0 0 0

Tell me if it is better.

[lackyluuk]

hi @ian57
I have just tried your suggestions. Unfortunately if I enable all these options I only have sound but the screen stays black. And the sound is very clippering.

thanks in advance

[ian57]

@lackyluuk ok you can try to add only

hdmi_cvt=1024 600 3 0 0 0

can you give us the full reference of your screen please.

and what does the following command give on your RB without any modification of config.txt :

# cut -d, -f2 /sys/class/graphics/fb0/virtual_size

[lackyluuk]

Hi @ian57
When I only add this line, the video plays but it is still too large

The command gives the following result:

cut -d, -f2 /sys/class/graphics/fb0/virtual_size
480

Here is a link to the display I have:
https://www.pi-shop.ch/hdmi-4-pi-7-display-no-touchscreen-1024x600-mit-mini-driver

[ian57]

@lackyluuk the vertical resolution detected is not good, you should have 600 instead. I need to check how S06splash display video

sorry I missed a parameter in the previous configuration ! a important one : the refresh frequency.
please try this

# uncomment if hdmi display is not detected and composite is being output
hdmi_force_hotplug=1
 
# uncomment to force a specific HDMI mode (here we are forcing 800x480!)
hdmi_group=2
hdmi_mode=1
hdmi_mode=87
hdmi_cvt=1024 600 60 3 0 0 0

It should work better see here https://learn.adafruit.com/hdmi-uberguide/2300-hdmi-4-pi-7-display-no-touchscreen-1024x600-w-slash-mini-driver the same screen as yours

[lackyluuk]

@ian57 thanks for the adafruit link
I have changed the config accordingly (commented also things like

 #disable_overscan=1
 #hdmi_drive=2

Now it looks much better, but still the video does not match the video (at least on the sides) exactly. But it is already almost good.

[ian57]

@lackyluuk that's cool, can you post a picture of what goes wrong for splash video please.

can you retry the command

cut -d, -f2 /sys/class/graphics/fb0/virtual_size

and put the result.
thx

[lackyluuk]

Hi @ian57
The command now returns the correct value.

# cut -d, -f2 /sys/class/graphics/fb0/virtual_size
600

Here you can see a "original" recalbox splash video. This one is worse than others (I use two unofficial ones, which fits a little bit better).