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4.7 vs 4.8-grsec mouse events ignored sometimes with multimedia in 4.7 work fine in 4.8-grsec
Closed, WontfixPublic


Testing stable 4.7 vs grsec 4.8, I have noticed the mouse click events are ignored under certain circumstances with 4.7, but those same circumstances to not cause the mouse click events to be ignored in 4.8-grsec

This ticket is only for reference that mouse click events under certain multimedia programs that utilize the sound card may ignore mouse click events under 4.7 while work fine under 4.8-grsec.

The kernels in question are:

todd@librem-13:~/Documents/Talent-Show-2017$ cd
todd@librem-13:~$ dpkg -l *linux-image-4.[78]* | grep ii
ii  linux-image-4.7.0-1-amd64          4.7.4-2                               amd64        Linux 4.7 for 64-bit PCs (signed)
ii  linux-image-4.8.0-2-grsec-amd64    4.8.15-2+grsec201701031913+1.1pureos1 amd64        Linux 4.8 for 64-bit PCs, Grsecurity protection

Reproduction 4.7:

  1. Either open VLC or Mixxx
  2. Play music
  3. After < 10 minutes or so, sometimes
  4. mouse click events are ignored
  5. NOTE: Mouse movement still occurs, and mouse click events are still handled ONLY to close the window (Wayland) but not anything inside any window.

Resolution in 4.7:

  1. Window close VLC or Mixxx

Reproduction in 4.8:

  1. Do the same as 4.7 above, but notice there is no mouse click event ignored

Resolution in 4.8:

  1. None required, it works.

Event Timeline

todd created this task.Mar 22 2017, 07:20
zlatan.todoric closed this task as Wontfix.Aug 19 2017, 12:11

Due to all recent events, grsec will be impossible to support and we will actually actively remove it from our archive. We will gradually improve security, probably first step by enabling AppArmor by default. Closing all grsec related packages.