Ripples While Scrolling/Streaming Video

doxa · 2018-07-01 23:10:41

stevep wrote:

With a normal Optimus system, the Intel GPU is always handling the 2D output, such as for browsers and video. Bumblebee just allows the system to hand off the 3D rendering work to the Nvidia card, but it still goes back to the integrated GPU for the display. The "inxi -G" command lets you see this...if you'd ever run it and post the results like I asked.
Anyway, to make sure you're running the "intel" instead of the kernel modesetting driver, make sure you have xserver-xorg-video-intel, and put a file named "20-intel.conf" in /etc/X11/xorg.conf.d with the contents:
Section "Device"
   Identifier  "Intel Graphics"
   Driver      "intel"
#  Option      "AccelMethod" "uxa"  #could also use the default "sna"
   Option      "TearFree"     "true"
EndSection
and reboot. Inxi should show that you are now using the intel driver.

Alright, man. It took me a while to get it together, but I installed inxi and inxi -G shows the following:

$ inxi -G
Graphics:  Card-1: Intel 2nd Generation Core Processor Family Integrated Graphics Controller
           Card-2: NVIDIA GF119M [Quadro NVS 4200M]
           Display Server: X.Org 1.19.2 drivers: modesetting,nouveau (unloaded: fbdev,vesa)
           Resolution: 1600x900@60.04hz
           GLX Renderer: Mesa DRI Intel Sandybridge Mobile
           GLX Version: 3.0 Mesa 13.0.6

I just reinstalled the system, so I'm on the stock kernel. I am going to create the file you mentioned and see if there's a difference.

doxa · 2018-07-01 23:25:34

Alright, very good news. Following stevep's instructions has made a big difference. Not seeing any tearing now, and miraculously it also solved the issue with the display brightness!

$ inxi -G
Graphics:  Card-1: Intel 2nd Generation Core Processor Family Integrated Graphics Controller
           Card-2: NVIDIA GF119M [Quadro NVS 4200M]
           Display Server: X.Org 1.19.2 driver: intel
           Resolution: 1600x900@60.04hz
           GLX Renderer: Mesa DRI Intel Sandybridge Mobile
           GLX Version: 3.0 Mesa 13.0.6

Thanks stevep!

doxa · 2018-07-02 02:05:12

stevep wrote:

Anyway, to make sure you're running the "intel" instead of the kernel modesetting driver, make sure you have xserver-xorg-video-install, and put a file named "20-intel.conf" in /etc/X11/xorg.conf.d with the contents:
Section "Device"
   Identifier  "Intel Graphics"
   Driver      "intel"
#  Option      "AccelMethod" "uxa"  #could also use the default "sna"
   Option      "TearFree"     "true"
EndSection
and reboot. Inxi should show that you are now using the intel driver.

A note for posterity in case this is helpful for anyone: The above-quoted program was written with a typo, it's actually xserver-xorg-video-intel.

hhh · 2018-07-02 02:22:49

doxa wrote:

A note for posterity in case this is helpful for anyone: The above-quoted program was written with a typo, it's actually xserver-xorg-video-intel.

Nice catch, I've corrected stevep's post and your follow-up.

ohnonot · 2018-07-02 07:50:43

doxa wrote:

Not seeing any tearing now, and miraculously it also solved the issue with the display brightness!

what i said in post #4!

but it looks like now the nvidia card remains unused.

so once again, you should make sure to set up the dual graphics properly. not sure if it's bumblebee; debian wiki surely has a tut for that.

doxa · 2018-07-02 15:01:31

ohnonot wrote:

doxa wrote:
Not seeing any tearing now, and miraculously it also solved the issue with the display brightness!
what i said in post #4!
but it looks like now the nvidia card remains unused.
so once again, you should make sure to set up the dual graphics properly. not sure if it's bumblebee; debian wiki surely has a tut for that.

Good call, but I am rather reluctant as every time I attempt to install bumblebee and the nvidia drivers, the system crashes and won't get past boot. Not sure what the deal is..

stevep · 2018-07-02 18:10:42

ohnonot wrote:

doxa wrote:
Not seeing any tearing now, and miraculously it also solved the issue with the display brightness!
what i said in post #4!
but it looks like now the nvidia card remains unused.
so once again, you should make sure to set up the dual graphics properly. not sure if it's bumblebee; debian wiki surely has a tut for that.

Based on what I and others have experienced, the Nvidia card has diddly to do with it. It seems to be a problem with the newer Mesas and using the kernel's modesetting driver for Intel GPUs instead. It occurs on non-Optimus machines. It's still a glitch with that driver on a backported Mesa 18.1.2 on Stretch and a 4.17.3 kernel on my Coffee Lake machine, too...maybe the newer xorg in Buster would solve it, but I haven't tested that...yet.

Last edited by stevep (2018-07-02 18:12:06)

ohnonot · 2018-07-02 20:32:21

stevep wrote:

Based on what I and others have experienced, the Nvidia card has diddly to do with it.

i have not claimed that.
all i'm saying is: while the problem appears solved now, the nvidia card remains unused.
which is kinda sad.

doxa · 2018-07-02 22:42:21

ohnonot wrote:

stevep wrote:
Based on what I and others have experienced, the Nvidia card has diddly to do with it.
i have not claimed that.
all i'm saying is: while the problem appears solved now, the nvidia card remains unused.
which is kinda sad.

True. Would be ideal to have it all functioning properly.

stevep · 2018-07-03 00:43:59

OK...you already have a thread for that, right?

doxa · 2018-07-05 21:10:32

stevep wrote:

OK...you already have a thread for that, right?

Not certain if this question was directed at me, but no, I haven't made another thread for that. Should I?

ohnonot · 2018-07-06 08:13:48

i think stevep was refering to this:

ohnonot wrote:

this is likely connected to your other issue that still needs solving.

doxa · 2018-07-06 17:29:27

ohnonot wrote:

i think stevep was refering to this:
ohnonot wrote:
this is likely connected to your other issue that still needs solving.

OK. Well, I suppose the moderator can mark these threads as solved, although, technically, they did yield an issue which remains to be solved, which is how I can get both graphics cards working properly together.

It's this last issue which I thought stevep was referring to. But, I'm not sure if it warrants a thread since everyone keeps referencing the Debian wikis on Nvidia Optimus and Bumblebee..

DeepDayze · 2018-07-07 02:50:53

doxa wrote:

ohnonot wrote:
i think stevep was refering to this:
ohnonot wrote:
this is likely connected to your other issue that still needs solving.
OK. Well, I suppose the moderator can mark these threads as solved, although, technically, they did yield an issue which remains to be solved, which is how I can get both graphics cards working properly together.
It's this last issue which I thought stevep was referring to. But, I'm not sure if it warrants a thread since everyone keeps referencing the Debian wikis on Nvidia Optimus and Bumblebee..

You can edit the title of the first post and put [SOLVED] before the title.

hhh · 2018-07-07 03:00:06

Leave this unsolved for now, please. This is a general issue that depends on the graphics driver, I'd personally like to see more testing/different setups before closing this.

tknomanzr · 2018-07-07 16:38:56

I would give more info on this, but this is for pretty specific hardware setups that I don't have access too. The best I can do is point to Debian's recommended way of installing the drivers.

#21 2018-07-01 23:10:41

Re: Ripples While Scrolling/Streaming Video

#22 2018-07-01 23:25:34

Re: Ripples While Scrolling/Streaming Video

#23 2018-07-02 02:05:12

Re: Ripples While Scrolling/Streaming Video

#24 2018-07-02 02:22:49

Re: Ripples While Scrolling/Streaming Video

#25 2018-07-02 07:50:43

Re: Ripples While Scrolling/Streaming Video

#26 2018-07-02 15:01:31

Re: Ripples While Scrolling/Streaming Video

#27 2018-07-02 18:10:42

Re: Ripples While Scrolling/Streaming Video

#28 2018-07-02 20:32:21

Re: Ripples While Scrolling/Streaming Video

#29 2018-07-02 22:42:21

Re: Ripples While Scrolling/Streaming Video

#30 2018-07-03 00:43:59

Re: Ripples While Scrolling/Streaming Video

#31 2018-07-05 21:10:32

Re: Ripples While Scrolling/Streaming Video

#32 2018-07-06 08:13:48

Re: Ripples While Scrolling/Streaming Video

#33 2018-07-06 17:29:27

Re: Ripples While Scrolling/Streaming Video

#34 2018-07-07 02:50:53

Re: Ripples While Scrolling/Streaming Video

#35 2018-07-07 03:00:06

Re: Ripples While Scrolling/Streaming Video

#36 2018-07-07 16:38:56

Re: Ripples While Scrolling/Streaming Video

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