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From: Tim Watts <tw_usenet@dionic.net>
Newsgroups: comp.os.linux.misc
Subject: Weird problem - ALPS GlidePoint touchpad disappearing after suspend/resume and xrandr operations
Date: Fri, 09 Jan 2015 23:21:17 +0000
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Just throwing a bone here on the offchance:

Ubuntu 14.04, Dell E7440 with ALPS GlidePoint touchpad:

At home and work I jack in a 2nd HDMI screen and run Xorg over both 
(left/right) with XFCE4 window manager.

Leaving either place, I switch to single screen mode with a little 
script that does:


% cat .screenlayout/Single_Laptop.sh

#!/bin/sh
# Need to reset to 1 or apps get confused when maximising???
xrandr 	--output eDP1 --scale 1x1 --output HDMI1 --scale 1x1
xrandr 	\
	--output eDP1 --mode 1920x1080 --pos 0x0 --rotate normal --dpi 158 
--scale 0.9x0.9 \
	--output HDMI1 --off \
	--output VIRTUAL1 --off --output HDMI2 --off --output DP1 --off
xfconf-query -c xfce4-panel -p /panels/panel-0/output-name -s eDP1



and then suspend using the XFCE4 knob.

Resumes fine but almost every time (but not always) after a minute or a 
few minutes (it varies), the touchpad stops working and so do the bottom 
buttons.

The mouse stick and the top buttons remain fine.

Log out of X and in again and all is well and stays well.


I even tried disabling and re-enabling the touchpad in the settings 
control panel - no avail.



Any ideas?



Cheers

Tim