Ubuntu
vlc package

green bar on top with vlc and vaapi hardware acceleration

Bug #1942739 reported by Götz Waschk on 2021-09-06

This bug affects 4 people

Affects		Status	Importance	Assigned to	Milestone
	vlc (Ubuntu)	Confirmed	Undecided	Unassigned

Bug Description

This is with vlc and the Intel iHD graphics driver. By default, vlc is using automatic detection for hardware accelerated video. The selected default is vaapi which produces a green bar on top of every video. The workaround is to select vaapi_drm in the settings.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: vlc 3.0.9.2-1
ProcVersionSignature: Ubuntu 5.13.0-1010.11-oem 5.13.1
Uname: Linux 5.13.0-1010-oem x86_64
ApportVersion: 2.20.11-0ubuntu27.18
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Mon Sep 6 08:23:36 2021
DistributionChannelDescriptor:
# This is the distribution channel descriptor for the OEM CDs
# For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor
canonical-oem-somerville-focal-amd64-20200502-85
InstallationDate: Installed on 2021-08-20 (16 days ago)
InstallationMedia: Ubuntu 20.04 "Focal" - Build amd64 LIVE Binary 20200502-05:58
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=de_DE.UTF-8
SHELL=/bin/zsh
SourcePackage: vlc
UpgradeStatus: No upgrade log present (probably fresh install)

Tags:

Revision history for this message

Götz Waschk (goetz-waschk) wrote on 2021-09-06:

Bildschirmfoto von 2021-09-06 08-33-34.png Edit (1.2 MiB, image/png)
Dependencies.txt Edit (26.5 KiB, text/plain; charset="utf-8")
ProcCpuinfoMinimal.txt Edit (1.7 KiB, text/plain; charset="utf-8")
RelatedPackageVersions.txt Edit (581 bytes, text/plain; charset="utf-8")

Revision history for this message

Launchpad Janitor (janitor) wrote on 2021-10-05:

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

Changed in vlc (Ubuntu):
status:	New → Confirmed

Revision history for this message

Shuhao (shuhao) wrote on 2021-10-05:

I see you have a tigerlake processor. I have a i7-1160G7 and have the same problem with VLC.

Revision history for this message

psl (slansky) wrote on 2023-08-06 (last edit on 2023-08-06):

I see this issue on my notebook too. Kernel is 5.15.0.

$ inxi -CGS
System: Host: vivobook Kernel: 5.15.0-78-generic x86_64 bits: 64 Desktop: Cinnamon 5.2.7
           Distro: Linux Mint 20.3 Una
CPU: Topology: Dual Core model: 11th Gen Intel Core i3-1115G4 bits: 64 type: MT MCP
           L2 cache: 6144 KiB
           Speed: 1060 MHz min/max: 400/4100 MHz Core speeds (MHz): 1: 1032 2: 1077 3: 1001 4: 1081
Graphics: Device-1: Intel driver: i915 v: kernel
           Display: x11 server: X.Org 1.20.13 driver: modesetting unloaded: fbdev,vesa
           resolution: 1920x1080~60Hz
           OpenGL: renderer: Mesa Intel UHD Graphics (TGL GT2) v: 4.6 Mesa 21.2.6
---

$ vlc --version
VLC media player 3.0.9.2 Vetinari (revision 3.0.9.2-0-gd4c1aefe4d)
VLC version 3.0.9.2 Vetinari (3.0.9.2-0-gd4c1aefe4d)
Compiled by buildd on lgw01-amd64-060.buildd (Apr 9 2020 19:29:44)
Compiler: gcc version 9.3.0 (Ubuntu 9.3.0-10ubuntu2)
This program comes with NO WARRANTY, to the extent permitted by law.
You may redistribute it under the terms of the GNU General Public License;
see the file named COPYING for details.
Written by the VideoLAN team; see the AUTHORS file.

---

Screenshot with the bug: https://08167fbae5cb7870.s3.fr-par.scw.cloud/VLC-BBB-green-acc-bug.png

Note that red mushroom is shifted down, about 10%; like the layer with red color is shifted down, so green area is at the top of video screen and you can see that colors are not right in the whole picture but that is not clearly visible. Compare with screenshot without this issue (later in the report)

When VLC snapshot is taken, the issue is not visible, like it is on screen only:
https://08167fbae5cb7870.s3.fr-par.scw.cloud/VLC-BBB-green-acc-bug-vlcsnap.png

---

This is the VLC setting to replicate the bug:
https://08167fbae5cb7870.s3.fr-par.scw.cloud/VLC-BBB-green-acc-bug-v1.png
https://08167fbae5cb7870.s3.fr-par.scw.cloud/VLC-BBB-green-acc-bug-c1.png

Video sample: https://08167fbae5cb7870.s3.fr-par.scw.cloud/big-buck-bunny-30sec-800x480.mp4

---

Workarround is to change HW accelerator (or to disable it) or to change Video output device; for example, "XVideo output (XCB)" works OK...

https://08167fbae5cb7870.s3.fr-par.scw.cloud/VLC-BBB-green-acc-bug-ok.png
https://08167fbae5cb7870.s3.fr-par.scw.cloud/VLC-BBB-green-acc-bug-v2.png
https://08167fbae5cb7870.s3.fr-par.scw.cloud/VLC-BBB-green-acc-bug-c1.png

I see this issue on my notebook too. Kernel is 5.15.0.

$ inxi -CGS
System:    Host: vivobook Kernel: 5.15.0-78-generic x86_64 bits: 64 Desktop: Cinnamon 5.2.7 
           Distro: Linux Mint 20.3 Una 
CPU:       Topology: Dual Core model: 11th Gen Intel Core i3-1115G4 bits: 64 type: MT MCP 
           L2 cache: 6144 KiB 
           Speed: 1060 MHz min/max: 400/4100 MHz Core speeds (MHz): 1: 1032 2: 1077 3: 1001 4: 1081 
Graphics:  Device-1: Intel driver: i915 v: kernel 
           Display: x11 server: X.Org 1.20.13 driver: modesetting unloaded: fbdev,vesa 
           resolution: 1920x1080~60Hz 
           OpenGL: renderer: Mesa Intel UHD Graphics (TGL GT2) v: 4.6 Mesa 21.2.6 
---

$ vlc --version
VLC media player 3.0.9.2 Vetinari (revision 3.0.9.2-0-gd4c1aefe4d)
VLC version 3.0.9.2 Vetinari (3.0.9.2-0-gd4c1aefe4d)
Compiled by buildd on lgw01-amd64-060.buildd (Apr  9 2020 19:29:44)
Compiler: gcc version 9.3.0 (Ubuntu 9.3.0-10ubuntu2)
This program comes with NO WARRANTY, to the extent permitted by law.
You may redistribute it under the terms of the GNU General Public License;
see the file named COPYING for details.
Written by the VideoLAN team; see the AUTHORS file.

---

Screenshot with the bug: https://08167fbae5cb7870.s3.fr-par.scw.cloud/VLC-BBB-green-acc-bug.png

When VLC snapshot is taken, the issue is not visible, like it is on screen only:
https://08167fbae5cb7870.s3.fr-par.scw.cloud/VLC-BBB-green-acc-bug-vlcsnap.png

---

This is the VLC setting to replicate the bug:
https://08167fbae5cb7870.s3.fr-par.scw.cloud/VLC-BBB-green-acc-bug-v1.png
https://08167fbae5cb7870.s3.fr-par.scw.cloud/VLC-BBB-green-acc-bug-c1.png

Video sample: https://08167fbae5cb7870.s3.fr-par.scw.cloud/big-buck-bunny-30sec-800x480.mp4

---

Workarround is to change HW accelerator (or to disable it) or to change Video output device; for example, "XVideo output (XCB)" works OK...

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green bar on top with vlc and vaapi hardware acceleration

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vlc package