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INDI Library v2.0.6 is Released (02 Feb 2024)

Bi-monthly release with minor bug fixes and improvements

Setting resolution via config.txt for tablet

  • Posts: 71
  • Thank you received: 2
I am connecting to my astropi with my samsung galaxy tab e 9.6 via vnc and the resolution is set to 656x416 and i am trying to increase it to 1280x800 via the config.txt file at the sd card with no success. The lines i am editing are the following

hdmi_force_hotplug=1
hdmi_group=2
hdmi_mode=xx (where xx i set the number form 27 to 31 since it is the resolution of my tablet)

Another thing i could try is the following line
hdmi_cvt=<width> <height> <framerate> <aspect> <margins> <interlace> <rb>
width        width in pixels
height       height in pixels
framerate    framerate in Hz
aspect       aspect ratio 1=4:3, 2=14:9, 3=16:9, 4=5:4, 5=16:10, 6=15:9
margins      0=margins disabled, 1=margins enabled
interlace    0=progressive, 1=interlaced
rb           0=normal, 1=reduced blanking

eg hdmi_cvt=1280 800 60 5 0 0 1

do i need to do anything else in the config file if i use the above line? Also from the specs of the screen i can't find the framerate of the screen
 
Screen specs
Type 	TFT capacitive touchscreen, 16M colors
Size 	9.6 inches, 267.2 cm2 (~73.9% screen-to-body ratio)
Resolution 	800 x 1280 pixels, 16:10 ratio (~157 ppi density)
Multitouch 	Yes
 

any help is much appreciated.
HEQ5 Pro Rowan Belt Mod, GSO RC8'', SW ED80, Atik 383L+, Atik EFW2, Atik OAG, SX Lodestar, ZWO ASI 120MC
5 years 7 months ago #28655

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You should set hdmi_mode to 28 because of the 60 Hz refresh rate. Then reboot the raspberry pi and you should be set. I have set the hdmi_mode to 42 and it works like a charm. No need to set hdmi_cvt.
5 years 7 months ago #28656

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sorry but it didn't work the screen resolution is still stuck at 656x416
HEQ5 Pro Rowan Belt Mod, GSO RC8'', SW ED80, Atik 383L+, Atik EFW2, Atik OAG, SX Lodestar, ZWO ASI 120MC
5 years 7 months ago #28658

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scratch that i forgot to remove the # form hdmi_force_hotplug it works like a charm now
HEQ5 Pro Rowan Belt Mod, GSO RC8'', SW ED80, Atik 383L+, Atik EFW2, Atik OAG, SX Lodestar, ZWO ASI 120MC
5 years 7 months ago #28659

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