Refresh all background instances after suspend if needed
NVIDIA drivers don't preserve FBO contents across suspend / resume cycles which results in broken backgrounds. We can work around that by forcing a refresh when coming out of suspend. https://bugzilla.gnome.org/show_bug.cgi?id=739178
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@ -11,6 +11,7 @@ const St = imports.gi.St;
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const Background = imports.ui.background;
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const BackgroundMenu = imports.ui.backgroundMenu;
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const LoginManager = imports.misc.loginManager;
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const DND = imports.ui.dnd;
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const Main = imports.ui.main;
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@ -248,6 +249,18 @@ const LayoutManager = new Lang.Class({
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global.screen.connect('in-fullscreen-changed',
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Lang.bind(this, this._updateFullscreen));
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this._monitorsChanged();
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// NVIDIA drivers don't preserve FBO contents across
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// suspend/resume, see
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// https://bugzilla.gnome.org/show_bug.cgi?id=739178
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if (Shell.util_need_background_refresh()) {
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LoginManager.getLoginManager().connect('prepare-for-sleep',
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function(lm, suspending) {
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if (suspending)
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return;
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Meta.Background.refresh_all();
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});
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}
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},
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// This is called by Main after everything else is constructed
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@ -5,6 +5,9 @@
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <GL/gl.h>
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#include <cogl/cogl.h>
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#include "shell-util.h"
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#include <glib/gi18n-lib.h>
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#include <gtk/gtk.h>
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@ -330,3 +333,33 @@ shell_util_cursor_tracker_to_clutter (MetaCursorTracker *tracker,
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clutter_actor_hide (CLUTTER_ACTOR (texture));
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}
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}
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typedef const gchar *(*ShellGLGetString) (GLenum);
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static const gchar *
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get_gl_vendor (void)
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{
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static const gchar *vendor = NULL;
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if (!vendor)
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{
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ShellGLGetString gl_get_string;
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gl_get_string = (ShellGLGetString) cogl_get_proc_address ("glGetString");
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if (gl_get_string)
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vendor = gl_get_string (GL_VENDOR);
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}
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return vendor;
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}
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gboolean
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shell_util_need_background_refresh (void)
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{
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if (!clutter_check_windowing_backend (CLUTTER_WINDOWING_X11))
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return FALSE;
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if (g_strcmp0 (get_gl_vendor (), "NVIDIA Corporation") == 0)
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return TRUE;
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return FALSE;
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}
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@ -44,6 +44,8 @@ GdkPixbuf *shell_util_create_pixbuf_from_data (const guchar *data,
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void shell_util_cursor_tracker_to_clutter (MetaCursorTracker *tracker,
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ClutterTexture *texture);
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gboolean shell_util_need_background_refresh (void);
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G_END_DECLS
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#endif /* __SHELL_UTIL_H__ */
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