Dell OptiPlex 7440 AIO (Skylake) graphics bug

I have a weird bug on a Skylake machine.
When playing videos the video itself always stays on top of the display stack.
This happens no matter the choice of Window manager options in MATE Tweak.
(Even with no compositor)
It doesn't register when I take a screenshot or make a video of the screen, so I had no choice but to make a picture of my screen using my phone:

Anyone know what package I need to file the bug report against?

ouroumov@Bloc:~/Desktop$ inxi -ACDSGIMN
System:    Host: Bloc Kernel: 4.4.0-34-generic x86_64 (64 bit)
           Desktop: MATE 1.12.1  Distro: Ubuntu 16.04 xenial
Machine:   System: Dell product: OptiPlex 7440 AIO
           Mobo: Dell model: 0X2MKR v: A00
           Bios: Dell v: 1.4.7 date: 03/15/2016
CPU:       Quad core Intel Core i5-6500 (-MCP-) cache: 6144 KB 
           clock speeds: max: 3600 MHz 1: 900 MHz 2: 900 MHz 3: 899 MHz
           4: 900 MHz
Graphics:  Card: Intel Sky Lake Integrated Graphics
           Display Server: X.Org 1.18.3 drivers: intel (unloaded: fbdev,vesa)
           Resolution: [email protected]
           GLX Renderer: Mesa DRI Intel HD Graphics 530 (Skylake GT2)
           GLX Version: 3.0 Mesa 11.2.0
Audio:     Card Intel Sunrise Point-H HD Audio driver: snd_hda_intel
           Sound: Advanced Linux Sound Architecture v: k4.4.0-34-generic
Network:   Card: Intel Ethernet Connection (2) I219-LM driver: e1000e
Drives:    HDD Total Size: 500.1GB (12.7% used)
           ID-1: /dev/sda model: WDC_WD5000LPLX size: 500.1GB
Info:      Processes: 211 Uptime: 13 min Memory: 1534.1/15934.2MB
           Client: Shell (bash) inxi: 2.2.35

It's probably a bug in video overlay (ie using a separate buffer for part of the screen). I would expect it to be a bug in the display driver and not an application though. Look through the /var/log/Xorg.0.log file to see what driver is being loaded. You can try VLC with overlay on and off to isolate the problem.

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I thought it might be listed here:

… but I got lost looking through all of those bugs. Not encouraging at all.

EDIT: May be related to -


Hi @ouroumov,

did you install the Intel driver installer tool or are you using the onboard drivers that came with the kernel?. :confused:

You nailed it man.
That bug report led me to the RHEL bug:
It in turn led me to the following workaround:

  • Open SMPlayer, go to Options -> Preferences
  • Go to "Advanced", then to the "Options for MPlayer/mpv" tab
  • add -vo gl to the (empty) option list

Problem fixed in SMPlayer.

I still can't exactly understand the correct package to file the bug against, but at least it will add some meat to the bug report.

Thanks a bunch mate.

I didn't do anything more than the classic "Driver & Firmware" step of Welcome -> Getting Started

Edit: Reported bug here: Bug #1619556 “Video Stacking/Scaling issue on DELL OptiPlex 7440...” : Bugs : xserver-xorg-video-intel package : Ubuntu

Marking this thread as solved since the goal was to find how to report the bug.

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