Transparent pixels are rendered incorrectly by Totem (leave garbage) on the Nvidia driver.

Bug #1893572 reported by Ophir LOJKINE
8
This bug affects 1 person
Affects Status Importance Assigned to Milestone
totem (Ubuntu)
New
Low
Unassigned

Bug Description

The attached webm video causes rendering bugs on my desktop when opened with the Totem video player.

Ubuntu 20.04.1 LTS
totem 3.34.1
graphics card: Geforce GTX 1050 Ti
video driver: proprietary, nvidia-driver-440

Tags: focal nvidia
Revision history for this message
Ophir LOJKINE (pere-jobs) wrote :
Revision history for this message
Ophir LOJKINE (pere-jobs) wrote :

This is what the bug looks like. The bug does not appear on screenshots, so I filmed my screen.

affects: compiz (Ubuntu) → totem (Ubuntu)
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Ophir LOJKINE (pere-jobs) wrote :

The problem actually seems to occur with any video that contains transparent pixels. Here is for example a VP8-encoded fully transparent video with which I can reproduce the problem.

The video displays perfectly fine in vlc, mpv, and firefox (the transparent pixels are simply displayed in black).

Revision history for this message
Daniel van Vugt (vanvugt) wrote :

It looks like your graphics driver is probably relevant because with an Intel GPU and the same software the problem does not occur.

tags: added: focal nvidia
summary: - this webm video makes Totem's window flicker
+ Transparent pixels are rendered incorrectly by Totem (leave garbage) on
+ the Nvidia driver.
Changed in totem (Ubuntu):
importance: Undecided → Low
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