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From 122d7726e450712b8b2fc85db41e3c8ab7b6ad56 Mon Sep 17 00:00:00 2001
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From: Ray Strode <rstrode@redhat.com>
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Date: Tue, 15 Jan 2019 10:29:55 -0500
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Subject: [PATCH 5/9] backends/native: emit gl-video-memory-purged when
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becoming active
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The proprietary NVIDIA driver garbles memory on suspend. In order
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to work around that limitation, mutter needs to refresh all its
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textures on resuem.
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This commit lays the way toward doing that by emitting the
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"gl-video-memory-purged" signal when the compositor becomes active
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by logind (which happens on VT switch and on resume).
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---
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src/backends/native/meta-backend-native.c | 7 +++++++
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1 file changed, 7 insertions(+)
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diff --git a/src/backends/native/meta-backend-native.c b/src/backends/native/meta-backend-native.c
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index c473681cb..f593197e7 100644
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--- a/src/backends/native/meta-backend-native.c
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+++ b/src/backends/native/meta-backend-native.c
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@@ -653,8 +653,15 @@ void meta_backend_native_resume (MetaBackendNative *native)
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meta_backend_get_monitor_manager (backend);
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MetaMonitorManagerKms *monitor_manager_kms =
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META_MONITOR_MANAGER_KMS (monitor_manager);
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+ MetaDisplay *display = meta_get_display ();
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+ ClutterBackend *clutter_backend = clutter_get_default_backend ();
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+ CoglContext *cogl_context =
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+ clutter_backend_get_cogl_context (clutter_backend);
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MetaIdleMonitor *idle_monitor;
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+ if (cogl_has_feature (cogl_context, COGL_FEATURE_ID_UNSTABLE_TEXTURES))
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+ g_signal_emit_by_name (display, "gl-video-memory-purged");
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+
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meta_monitor_manager_kms_resume (monitor_manager_kms);
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clutter_evdev_reclaim_devices ();
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--
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2.21.0
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