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display: Make check-alive timeout configureable

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The check-alive feature is there for the user to be able to terminate
frozen applications more easily. However, sometimes applications are
implemented in a way where they fail to be reply to ping requests in a
timely manner, resulting in that, to the compositor, they are
indistinguishable from clients that have frozen indefinitely.

When using an application that has these issues, the GUI showed in
response to the failure to respond to ping requests can become annoying,
as it disrupts the visual presentation of the application.

To allow users to work-around these issues, add a setting allowing them
to configure the timeout waited until an application is considered
frozen, or disabling the check completely.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/1080
This commit is contained in:
Jonas Ådahl
2020-02-21 21:03:16 +01:00
parent f9326cfa3d
commit 2da27720ca
4 changed files with 91 additions and 9 deletions
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10
data/org.gnome.mutter.gschema.xml.in
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@ -137,6 +137,16 @@
</description>
</key>
<key name="check-alive-timeout" type="u">
<default>5000</default>
<summary>Timeout for check-alive ping</summary>
<description>
Number of milliseconds a client has to respond to a ping request in
order to not be detected as frozen. Using 0 will disable the alive check
completely.
</description>
</key>
<child name="keybindings" schema="org.gnome.mutter.keybindings"/>
</schema>