As analyzed, it has the same root cause of this bug:
https://bugs.launchpad.net/ubuntu/+source/unity-settings-
daemon/+bug/1503758
** Also affects: unity-settings-daemon (Ubuntu)
Importance: Undecided
Status: New
** Description changed:
CPU: Intel(R) Core(TM) i7-6600U CPU @ 2.60GHz
Integrated GPU: Intel Corporation Device [8086:1916]
Discrete GPU: NVIDIA Corporation Device [10de:1349] (Working)
BIOS: N1CET33W (1.01 )
Steps:
- 1. Install Sutton OEM image
+ 1. Install stock Ubuntu 14.04.3 image
2. Make sure GPU NVIDIA Corporation Device [10de:1349] working.
3. Adjust system resolution / DP / HDMI.
Expected result:
Adjust successfully.
Actual result:
System log out;
Log in interface pops up;
Log in system, all prior sessions are killed. That is a brandnew LOGIN.
Notes:
When DP / HDMI connect, internal, extand and mirrow modes work normally. Only
externall mode makes system log out.
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https://bugs.launchpad.net/bugs/1575465
Title:
Adjusted resolution / DP / HDMI makes system log out ( NVIDIA
[10de:1349] is working )
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