Public bug reported: With a friend we checked the processor wakeups of my laptop with powertop. We spotted syndaemon. Investigating it, I found out that it polls, although an option was set to block and wait using some XRecord extension of X11. The option -R is also set in the current configuration of syndaemon in 12.10. Also the man page doesn't tell one about the deactivated -R option. I compiled it myself, with the option compiled in (need to install libxtst-dev) and it blocked and waited like expected. When I read about the lengthy bugreports of ancient times about polling in syndaemon.
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input- synaptics/+bug/906987 As I understand them, X11 crashes randomly when XRecord is used. And the chosen solution was to deactivate the usage of XRecord in syndaemon. I am not satisfied with the situation. * man page shouldn't list -R if it is not compiled in; it was misleading to me * syndaemon shouldnt be started with -R, when it has no affect; it was misleading to me * there should be a power measurement documented somewhere which defends polling against power drainage; the decision is weird on battery powered devices * XRecord should be deactivated in X11; who guarantees that another app than syndaemon comes by using XRecord? * XRecord should be fixed in X11 (the bug description and tried fixes arent exhaustive by far!) ** Affects: xserver-xorg-input-synaptics (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-input-synaptics in Ubuntu. https://bugs.launchpad.net/bugs/1173077 Title: syndaemon lies about its functionality, -R doesn't use XRecord To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input-synaptics/+bug/1173077/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
