# Touch screen does not match resolution

**URL:** <https://forums.plex.tv/t/touch-screen-does-not-match-resolution/224704>\
**Category:** Apps & Creations\
**Created:** [February 8, 2018, 2:33pm UTC](https://forums.plex.tv/t/touch-screen-does-not-match-resolution/224704 "2018-02-08T14:33:17Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Plexplorer](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/plexplorer/32/289803_2.png) [@Plexplorer](https://forums.plex.tv/u/Plexplorer)\
**Post date:** [February 8, 2018, 2:33pm UTC](https://forums.plex.tv/t/touch-screen-does-not-match-resolution/224704/1 "2018-02-08T14:33:17Z")

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Hi there,

I’ve got 1.8.0 running beautifully on RPI2 using a [5" TFT LCD Touchscreen](https://www.amazon.com/gp/product/B072813CS7/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1). All is well, except for the touchscreen system preference located at [**Preferences \> System \> Input devices \> Enable mouse and Touch Screen support**](https://drive.google.com/open?id=1kUlq2-2-rYsoXWlW2MGBckp5EUNcHlMo).

([See video](https://drive.google.com/open?id=1Hpch5mPRtiaWjtOfbYSno55ZCPtLxrhS)) When enabled, my bluetooth mouse trackpad works flawlessly. My touchscreen, however, is limited to and will only respond to the top-left corner of the screen. [This gentleman](https://www.youtube.com/watch?v=ZB7KGmD9GsA&t=333s) is using what appears to the the [Official Raspberry Pi 7" touchscreen](https://www.raspberrypi.org/products/raspberry-pi-touch-display/) and does not replicate my issue. I imagine his setup was entirely plug-and-play.

This device works natively with HDMI ([screenshot](https://drive.google.com/open?id=1ibn8BJXMEhYjlBbPHqDL1chuDxPIOD_h)). Upon first boot ([screenshot](https://drive.google.com/open?id=1TQLZnJj7Z4DSO5p9JWj1KWs0Jdv3dN9T)), the native resolution is incorrect and can be easily fixed ([screenshot](https://drive.google.com/open?id=1dTcVTIg5-K4j5Xe23NpHrU4SOcTj07FD)) by editing /boot/config.txt. The LCD manufacturer offers its own Debian touchscreen drivers involving /etc/xorg.conf and the RPI GPIO pins which, to my understanding, is either excluded from RasPlex or buried in the OS somewhere (/storage/.config, maybe?) Additionally, /etc is readonly in LibreELEC, and I am not confident that [uncompressing squashfs](https://sites.google.com/site/andreierdei/openelec-addons/squashfs-howto) and adding my own xorg.conf will work. For reference, touchscreen calibration instructions by the manufacturer say to include these lines in xorg.conf -  
Section “InputClass”  
Identifier “calibration”  
MatchProduct “ADS7846 Touchscreen”  
Option “Calibration” “140 3951 261 3998”  
Option “SwapAxes” “0”  
EndSection

This symptom exists in all three skins - OpenPHT 1.8.0, Aeon Nox 5.4.0, and Plex - Black Edition 17.03.16. At this point, I am convinced there is a simple .conf or similar file to support touchscreen that I need help identifying and editing. The touchscreen very clearly works, just needs proper calibration. IMO, cheap Chinese LCDs + RasPlex + 3D printed case = groundbreaking DIY.

Sincere thanks

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**Author:** ![system](https://global.discourse-cdn.com/plex/original/3X/2/a/2acb9765406f63293d357b4ec509ec39aa28f2ad.png) [@system](https://forums.plex.tv/u/system)\
**Post date:** [January 8, 2020, 7:40pm UTC](https://forums.plex.tv/t/touch-screen-does-not-match-resolution/224704/2 "2020-01-08T19:40:58Z")

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