Due to hardware driver support issues, the upgrade of the 4.7.0 kernel is mainly to be able to use the Intel HD Graphics 630 driver, but there are problems, such as Compiz effect caused by the desktop if more than one of the same programs start, and then click again when there will be flashing and crash issues. The lookup logs are as follows:
COMPIZ[4852]: Segfault at the IP 00007f88cae087f0 SP 00007ffce354c268 error 4 in libscale.so[7f5ce70cb000+24000]
Workaround:
These methods can only be tried, not necessarily every machine is effective.
1. Re-install the desktop
sudo apt install--reinstall ubuntu-desktop
2, install the CCSM, and then remove the special effects
sudo apt-get install Compizconfig-settings-manager
Reference:
https://www.howtoing.com/install-compiz-on-the-unity-desktop-on-ubuntu-12.04-precise-pangolin/
https://ubuntuforums.org/showthread.php?t=2349176
Ubuntu 16.04 Upgrade 4.7.0 kernel causes Compiz to crash, problem: compiz[4852]: Segfault at IP 00007f88cae087f0 SP 00007ffce354c268 error 4 in Libsca Le.so