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Hi I Have a Pi 3 running openplotter (http://sailoog.com/en/openplotter) and a 7" 800x480 touch screen. the desktop displays top to bottom but only about 80% from left to right. BUT the tough screen thinks the desktop is the whole screen (i.e. if it tap top left it is in the right place but if I tap off the desktop top right it puts the curser on the edge of the desktop. I have tried disabling overscan but no good. see photo The screen is small to begin with I want to be able to use the whole thing!

  • What make and model of screen is that ? Is the screen connected by hdmi (for image) and usb (for touch) ? – CoderMike Sep 20 '17 at 7:30
  • The screen is:raspberry.piaustralia.com.au/… – Electroviolin Sep 21 '17 at 8:14
  • Yes on HDMI and USB – Electroviolin Sep 21 '17 at 8:14
  • Also FYI I tried it on Raspbian NOOBS_v2_3_0. and it did the same thing only the resolution was worse almost unreadable – Electroviolin Sep 21 '17 at 8:19
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Added the following to /boot/config.txt should correct the visual screen size :

hdmi_group=2
hdmi_mode=1
hdmi_mode=87
hdmi_cvt 800 480 60 6 0 0 0
| improve this answer | |
  • @Electroviolin If this comment solved your problem be sure to mark the answer as right ;) – Luis Diaz Sep 22 '17 at 11:39
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Added the following to /boot/config.txt should correct the visual screen size :

hdmi_group=2 hdmi_mode=1 hdmi_mode=87 hdmi_cvt 800 480 60 6 0 0 0

| improve this answer | |
  • Chris, friend, you misunderstood how Stack Exchange works ;) You must accept his @CoderMike's answer and delete the one you just posted – NaturalBornCamper Sep 23 '17 at 4:20

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