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From 762ffddfa6157fe50bfa394ecbe4ba707d15f368 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 6/9] backends/native: update glyph cache on resume
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As mentioned in a previous commit, the proprietary NVIDIA
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driver garbles memory on suspend. That behavior, means that
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clutter's glyph cache (which is stored in GPU memory) gets
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corrupted on suspend.
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This commit ensures the glyph cache is blown away when
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the logind session becomes active (on VT switch and resume).
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---
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src/backends/native/meta-backend-native.c | 5 ++++-
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1 file changed, 4 insertions(+), 1 deletion(-)
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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 f593197e7..db9b63ac4 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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@@ -660,7 +660,10 @@ void meta_backend_native_resume (MetaBackendNative *native)
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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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+ clutter_clear_glyph_cache ();
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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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--
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2.21.0
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