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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [GTK] Allow applications to disable Accelerated Compositing mode"
href="https://bugs.webkit.org/show_bug.cgi?id=154147">154147</a>
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<th>Summary</th>
<td>[GTK] Allow applications to disable Accelerated Compositing mode
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<th>Classification</th>
<td>Unclassified
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<th>Product</th>
<td>WebKit
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<th>Version</th>
<td>Other
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<th>Hardware</th>
<td>Unspecified
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<th>OS</th>
<td>Unspecified
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<th>Status</th>
<td>NEW
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<th>Severity</th>
<td>Normal
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<th>Priority</th>
<td>P2
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<th>Component</th>
<td>WebKit Gtk
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<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
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<th>Reporter</th>
<td>clopez@igalia.com
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<th>CC</th>
<td>bugs-noreply@webkitgtk.org, cgarcia@igalia.com, mario@webkit.org, mcatanzaro@igalia.com
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<pre>In <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [GTK] Allow applications to force Accelerated Compositing mode"
href="show_bug.cgi?id=150558">bug 150558</a> we added the possibility to force AC to be always on if the environment variable WEBKIT_FORCE_COMPOSITING_MODE is defined.
Sometimes, because of bad graphics drivers or other grahpic related bugs (for example see <a class="bz_bug_link
bz_status_NEW "
title="NEW - [GTK] Particular sites may hang entire desktop"
href="show_bug.cgi?id=126122">bug 126122</a>) it may be desirable to do the contrary thing: force AC to be off.
So I'm proposing here to add another variable, lets name it WEBKIT_DISABLE_COMPOSITING_MODE for consistency with the previous one to disable AC.</pre>
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