Nvidia+XFCE: Totem window is see-through during playback, colours washed out

Do you find the same problem in gedit and gnome-calculator? (bug 1760818)

gnome-calculator (3.28.0): does not have the same problem.
gedit (3.28.1): does not have the same problem.

Other video players (VLC, mplayer, parole) do not have the same problem.

What output do you get when opening the Totem player from a terminal window?

The builtin compositor can be disabled via xfwm4-tweaks-settings, and that will most likely prevent the issue from occurring. Other than that, I suggest to test with a different window manager (e.g. "marco --replace", afterwards "xfwm4 --replace").

> what output do you get when launching totem from a terminal

moses@jolyne:~/Videos$ totem vapourwave.mp4

(totem:27938): Gtk-WARNING **: 15:09:23.719: Calling org.xfce.Session.Manager.Inhibit failed: GDBus.Error:org.freedesktop.DBus.Error.UnknownMethod: Method "Inhibit" with signature "susu" on interface "org.xfce.Session.Manager" doesn't exist

... nothing else while the video is playing. After quitting totem I see this:

(totem:27938): GLib-GObject-WARNING **: 15:10:38.356: invalid (NULL) pointer instance

(totem:27938): GLib-GObject-CRITICAL **: 15:10:38.356: g_signal_handlers_disconnect_matched: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed

(totem:27938): GLib-GObject-WARNING **: 15:10:38.356: invalid (NULL) pointer instance

(totem:27938): GLib-GObject-CRITICAL **: 15:10:38.356: g_signal_handlers_disconnect_matched: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed

(totem:27938): GLib-GObject-WARNING **: 15:10:38.356: invalid (NULL) pointer instance

(totem:27938): GLib-GObject-CRITICAL **: 15:10:38.356: g_signal_handlers_disconnect_matched: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed

(totem:27938): Totem-CRITICAL **: 15:10:38.356: totem_object_empty_menu_section: assertion 'TOTEM_IS_OBJECT (totem)' failed

> the builtin compositor can be disabled via xfwm4-tweaks-settings...

launched xfwm4-tweaks-settings, to Compositor tab, unchecked the box [ ] Enable display compositing. Tried totem again, and no washed-out transparency. Workaround confirmed.

Why this happens with totem and not mplayer, vlc, parole, mpv, or OpenShot, that's a head-scratcher. Especially mpv, since mpv & totem are linked to almost all the same libraries (mpv also uses libz.so.1 and linux-vdso.so.1)

Forgot to mention: after turning off display compositing in xfwm4-tweaks-settings, and running parole, the output to stderr is exactly the same as when display compositing was turned on.

I suggested to test with MATE's compositing window manager "marco" also. Any results?

Another test case would be to use xfwm4 with disabled compositor plus "compton" (standalone compositing manager).

I didn't try 'marco' because I didn't know what that is. Installing it now.

totem used with 'marco' and 'compton' are not washed out, but strangely transparent. See attached image for 'marco' -- compton is the same just no messages on stderr from compton.

Looks like the next step would be to test with an older NVIDIA driver version from the Ubuntu repository, and maybe with the slightly newer version 390.77 from the NVIDIA website also.

What does "status: invalid" mean?

In XFCE > Settings > Additional Drivers > Additional Drivers, it's
currently set to "NVIDIA Corporation GF106M [GeForce GTX 460M] "[x] Using
NVIDIA driver metapackage from nvidia-driver-390 (proprietary, tested)".
Other options are "[ ] Using NVIDIA bindary driver - version 340.106
from nvidia-340 (proprietary)" and "[ ] Using X.Org server - Nouveau
display driver from xserver-xorg-video-nouveau (open source)"

Tried to install nvidia-340, but it cocked up and left the system
in a bad state. I couldn't even revert to nvidia-driver-390 without
doing a lot of "apt --fix-broken install ... dpkg-divert --remove" loops.

Installed the nouveau driver, doesn't send output to the primary display,
had to plug in a second display. (???) used "xfwm4-tweaks-settings"
to make sure Compositing is turned on. Started "totem vapourwave.mp4"
and... no transparency. does_not_reproduce

NVIDIA website says the latest "long lived" (stable?) version is 390.77
(2018-07-16). https://www.nvidia.com/Download/driverResults.aspx/136120/en-us .
It won't let me install it because of the kernel modules already
installed, which I can't remove with modprobe nor rmmod because "resource
is in use" despite no dependencies and I already stopped X.Org. I'll keep trying.

Looking like it's a bad interaction between Totem and the NVIDIA
proprietary driver (nvidia-driver-390). Weird that the other video
players, even the gstreamer-based ones, don't suffer the same problem.

xfce4 (Ubuntu) → Invalid means that Theo believes this bug is not a bug in xfce4. But it is still a bug in another component(s).

See that task and others at the top of the page.

Status changed to 'Confirmed' because the bug affects multiple users.

I found out that disabling FXAA (NVIDIA X Server Settings -> X Screen 0 -> Antialiasing Settings) solves this issue.
Ubuntu 18.10, Gnome 3.30, NVIDIA Driver: 390.87, X-Server: 11.0, GTX 950.

"turn off FXAA" workaround works here too.
Ubuntu 18.10, Nvidia driver 390.87-0ubuntu1

Same problem on Ubuntu 18.04 (with Gnome Shell).
"turn off FXAA" workaround works here too.

18.04.02... Gnome Shell. Turning off FXAA works.