XMir support backward compatibility broken after updating OS

Bug #1646435 reported by Kris
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
xorg-server (Ubuntu)
Invalid
Undecided
Unassigned

Bug Description

/After flashing my phone and updating again, the problem is no longer /

There is no separate bug tracker for XMir so I figured that it belongs under Mir.
I installed my own Gtk native Linux arm app (a game) on my ubuntu phone and I was happily using it with the following launcher (~/.local/share/applications/lazsnake.desktop):
[Desktop Entry]
Name=lazSnake
Comment=Simple snake game written in Lazarus by Kris Jacewicz
X-Ubuntu-Touch=true
X-Ubuntu-XMir-Enable=true
Exec=/home/phablet/.local/xmir/lazSnake/lazsnake
Icon=/home/phablet/.local/xmir/lazSnake/lazsnake.png
Path=/home/phablet/.local/xmir/lazSnake
Terminal=false
Type=Application

Obviously the app folder is under ~/.local/xmir/lazSnake
Just today I updated the Ubuntu Touch on my Meizu MX4 phone.
Before update the build description was: Ubuntu 15.04-armhf (20160913-020303)
After update: Ubuntu 15.04-armhf (20161201-020304)

The very same game no longer works. Clicking on its icon in the Apps scope starts it but it immediately closes.
Whatever is the reason, I was already in the past updating my OS couple of times and always was able to use the app without any problems at all. Now, after updating, I can no longer do this. Whatever the reason is, apparently the new Ubuntu image broke some backward compatibility.

Also, I chose libertine as package only because otherwise I would not be able to even post this, but my problem is totally unrealted to Libertine.
Some error messages I was seeing are:
[xkb] Can't rename /run/user/32011/confined/ubuntu-lazsnake-app.kriscode/filewU9a3p to /tmp/server-B20D7FC79C7F597315E3E501AEF10E0D866E8E92.xkm, error: Invalid cross-device link
[xkb] Can't rename /run/user/32011/confined/ubuntu-lazsnake-app.kriscode/file0Kq8VM to /tmp/server-B20D7FC79C7F597315E3E501AEF10E0D866E8E92.xkm, error: Invalid cross-device link
XKB: Failed to compile keymap
Keyboard initialization failed. This could be a missing or incorrect setup of xkeyboard-config.
(EE)
Fatal server error:
(EE) Failed to activate core devices.(EE)
XMir has closed unexpectedly

Tags: xmir
Revision history for this message
Kris (k-k-jacewicz) wrote :

Very strange, I flashed my phone back to one of very old system versions, and then updated again. Now everything again seems to work, so I think this bug report is not valid any more.

Changed in mir (Ubuntu):
status: New → Invalid
description: updated
Revision history for this message
Kris (k-k-jacewicz) wrote :
Revision history for this message
Daniel van Vugt (vanvugt) wrote :

For future reference, Xmir tracks its bugs here using a tag:

https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bugs?field.tag=xmir

affects: mir (Ubuntu) → xorg-server (Ubuntu)
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