[Bug 1586539] Re: Major screen flickering in Chromium and Google Chrome

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On 2016-04-18T10:50:16+00:00 Arkadiusz Miśkiewicz wrote:

Created attachment 123024
xorg log

Dell XPS 15 9530

kernel 4.6.0-rc3-00182-gb9f5dba (and many older versions)
Mesa 11.2.0
intel driver: SNA compiled from 2.99.917-634-g81029be
xserver 1.18.3


google chrome 49.0.2623.112 (with default flags in flags://) and when viewing 
youtube in fullscreen there is flickering visible depending on mouse movements 
(mouse over youtube overlayed texts/menus).

Problem is visible here:
http://ixion.pld-linux.org/~arekm/p2/intel-bug-x1.avi


This problem is there for many months, so older versions of kernel, mesa, intel 
ddx, xserver, google chrome were also exhibiting this behaviour here.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1586539/comments/0


On 2016-04-18T10:56:28+00:00 Chris Wilson wrote:

Dirty cache lines are here again. To rule out the ddx mocs, can you
please try

diff --git a/src/sna/gen7_render.c b/src/sna/gen7_render.c
index f707d39..a3c5007 100644
--- a/src/sna/gen7_render.c
+++ b/src/sna/gen7_render.c
@@ -163,7 +163,7 @@ static const struct gt_info hsw_gt2_info = {
1 << HSW_PS_SAMPLE_MASK_SHIFT,
.urb = { 256, 1664, 640, 8 },
.gt = 2,
-   .mocs = 5,
+   //.mocs = 5,
 };
 
 static const struct gt_info hsw_gt3_info =

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On 2016-04-18T10:57:31+00:00 Chris Wilson wrote:

See also bug 80948

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1586539/comments/2


On 2016-04-18T11:12:22+00:00 Arkadiusz Miśkiewicz wrote:

(In reply to Chris Wilson from comment #1)
> Dirty cache lines are here again. To rule out the ddx mocs, can you please
> try
> 
> diff --git a/src/sna/gen7_render.c b/src/sna/gen7_render.c
> index f707d39..a3c5007 100644
> --- a/src/sna/gen7_render.c
> +++ b/src/sna/gen7_render.c
> @@ -163,7 +163,7 @@ static const struct gt_info hsw_gt2_info = {
> 1 << HSW_PS_SAMPLE_MASK_SHIFT,
> .urb = { 256, 1664, 640, 8 },
> .gt = 2,
> -   .mocs = 5,
> +   //.mocs = 5,
>  };
>  
>  static const struct gt_info hsw_gt3_info =

Doesn't help unfortunately.

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On 2016-04-18T11:30:42+00:00 Chris Wilson wrote:

Ok, try patching it out of mesa as well:

diff --git a/src/mesa/drivers/dri/i965/brw_defines.h 
b/src/mesa/drivers/dri/i965/brw_defines.h
index 60b696c..522a75a 100644
--- a/src/mesa/drivers/dri/i965/brw_defines.h
+++ b/src/mesa/drivers/dri/i965/brw_defines.h
@@ -2864,13 +2864,13 @@ enum brw_wm_barycentric_interp_mode {
  * On Ivybridge, the PTEs do have a cache-in-L3 bit, so setting MOCS to 0
  * may still respect that.
  */
-#define GEN7_MOCS_L31
+#define GEN7_MOCS_L30
 
 /* Ivybridge only: cache in LLC.
  * Specifying zero here means to use the PTE values set by the kernel;
  * non-zero overrides the PTE values.
  */
-#define IVB_MOCS_LLC(1 << 1)
+#define IVB_MOCS_LLC0
 
 /* Baytrail only: snoop in CPU cache */
 #define BYT_MOCS_SNOOP  (1 << 1)


If that fails, we have to start questioning the kernel.

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On 2016-04-18T12:05:39+00:00 Arkadiusz Miśkiewicz wrote:

Unfortunately it fails (ddx + mesa patches applied).

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1586539/comments/5


On 2016-04-18T12:16:06+00:00 Chris Wilson wrote:

Can you please try (kernel):

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 6ce2c31..4caccd2 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -3926,12 +3926,8 @@ out:
 * object is now coherent at its new cache level (with respect
 * to the access domain).
 */
-   if (obj->cache_dirty &&
-   obj->base.write_domain != I915_GEM_DOMAIN_CPU &&
-   cpu_write_needs_clflush(obj)) {
-   if (i915_gem_clflush_object(obj, true))
-   

[Bug 1586539] Re: Major screen flickering in Chromium and Google Chrome

[Kerry Martin]

** Changed in: linux (Ubuntu)
 Assignee: (unassigned) => Kerry Martin (kerryg)

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[Bug 1586539] Re: Major screen flickering in Chromium and Google Chrome

[Fabio A.]

Affects me too.

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[Bug 1586539] Re: Major screen flickering in Chromium and Google Chrome

[Gakaza]

Hello guys, thanks for the support, I was busy and wasn't tracking this
issue recently. However, the problem has been fixed after some later
updates, so Chrome in ubuntu 14.04 no longer flickers for me, though I'm
not certain which update fixes the issue hmmm...

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[Bug 1586539] Re: Major screen flickering in Chromium and Google Chrome

[Julian Liu]

** Changed in: oem-priority
   Status: In Progress => Fix Released

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[Bug 1586539] Re: Major screen flickering in Chromium and Google Chrome

[Timo Aaltonen]

That's a kernel change which is included in v4.10.

Closing as fixed, on 16.04 the hwe-16.04 kernel will be updated to it
before 16.04.3, and before that happens you can use the -edge kernel
which is on v4.10 already.

** Package changed: xserver-xorg-video-intel (Ubuntu) => linux (Ubuntu)

** Changed in: linux (Ubuntu)
   Status: Incomplete => Fix Released

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[Bug 1586539] Re: Major screen flickering in Chromium and Google Chrome

[Julian Liu]

** Changed in: oem-priority
   Status: New => In Progress

** Changed in: oem-priority
   Importance: Undecided => Critical

** Changed in: oem-priority
 Assignee: (unassigned) => Julian Liu (julian-liu)

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[Bug 1586539] Re: Major screen flickering in Chromium and Google Chrome

[Julian Liu]

** Also affects: oem-priority
   Importance: Undecided
   Status: New

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[Bug 1586539] Re: Major screen flickering in Chromium and Google Chrome

[Jacob Doherty]

The Xorg team people believe they have resolved this now:

https://bugs.freedesktop.org/show_bug.cgi?id=94987


commit 7aa6ca61ee5546d74b76610894924cdb0d4a1af0
Author: Chris Wilson 
Date:   Mon Nov 7 16:52:04 2016 +

drm/i915: Mark CPU cache as dirty when used for rendering

No idea of the release / version this has been resolved in though - and
guessing the Ubuntu 16.04 packages won't be carrying the very latest
commits and releases.

Any chance the Ubuntu package maintainers can reach out to their
upstream to discuss and look at including?

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[Bug 1586539] Re: Major screen flickering in Chromium and Google Chrome

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** Changed in: xorg-server
   Status: Confirmed => Fix Released

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[Bug 1586539] Re: Major screen flickering in Chromium and Google Chrome

[spike speigel]

I've done the same here:

https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1666994

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[Bug 1586539] Re: Major screen flickering in Chromium and Google Chrome

[Juraj]

I was reading Brandon's (maceach-b) bug report
(https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1657875). Besides
the very entertaining flaming of Christopher (penalvch) by Brandon over
there, I've found out in that report that this has been fixed in the
newer Xorg stack, which can be installed on 16.04 by running the
following, as mentioned in
https://wiki.ubuntu.com/Kernel/LTSEnablementStack:

 sudo apt-get install --install-recommends linux-generic-hwe-16.04
xserver-xorg-hwe-16.04

This also fixed the issue for me on Thinkpad W520.

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[Bug 1586539] Re: Major screen flickering in Chromium and Google Chrome

[Bug Watch Updater]

** Changed in: xorg-server
   Status: Unknown => Confirmed

** Changed in: xorg-server
   Importance: Unknown => Medium

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[Bug 1586539] Re: Major screen flickering in Chromium and Google Chrome

[Christopher M. Penalver]

Gakaza (gakaza), to track your hardware, it will help immensely if you 
filed a new report with Ubuntu by ensuring you have the package xdiagnose 
installed, and that you click the Yes button for attaching additional debugging 
information running the following from a terminal:
ubuntu-bug xorg

Also, please feel free to subscribe me to it.

For more on why this is helpful, please see
https://wiki.ubuntu.com/ReportingBugs.

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[Bug 1586539] Re: Major screen flickering in Chromium and Google Chrome

[Gakaza]

Hello guys, does this only affect Unbuntu 16.04? I have seen my Ubuntu
14.04 Chromium having the same issue shown in the same video that Vasya
Pupkin (the user of the original post) posted.

I just happened to have my Chromium flickering whenever I'm watching
YouTube videos or sometimes even pdf (rarely), and I have intel HD
graphic as well with no additional graphic cards.

I tried to follow the above solution and edit the
/usr/share/X11/xorg.conf/20-intel.conf but the file doesn't exist. I
also tried to disabled the "Override software rendering list" option in
chrome://flags but it doesn't work either.

Sorry if I made this confusing, I'm a newbie to Ubuntu and hopefully
could find a solution for this problem.


System: Ubuntu 14.04.5 LTS
CPU: Intel(R) Core(TM) i7-4770 CPU @ 3.40GHz
GPU: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor Integrated 
Graphics Controller (rev 06)

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[Bug 1586539] Re: Major screen flickering in Chromium and Google Chrome

[Brandon MacEachern]

Christopher M. Penalver (penalvch), why do we both need to file a new
report?  What exactly is wrong with this one?

Anyways, here:
https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1657875

I don't have time to go back and forth on this as I have a lot to do
daily, even the weekends.  I just need a non seizure inducing system,
thank you.

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[Bug 1586539] Re: Major screen flickering in Chromium and Google Chrome

[Jacob Doherty]

One thing I found during troubleshooting - for my hardware at least the
fix in #8:

Section "Device"
   Identifier "Intel Graphics"
   Driver "intel"
   Option "AccelMethod" "sna"
   Option "TearFree" "true"
   Option "DRI" "3"
EndSection

For me adding the Option "DRI" "3 line caused Chrome to begin locking up
when right clicking on pages (the menu would begin to display then
Chrome would freeze requiring it to be killed - I think it was also
causing issues with Xorg / Unity as the desktop itself would not be
responsive at the time.

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[Bug 1586539] Re: Major screen flickering in Chromium and Google Chrome

[Christopher M. Penalver]

Brandon MacEachern (maceach-b) / agoodm (alan-goodmanemail), so your hardware 
may be tracked, it will help immensely if you filed a new report with Ubuntu by 
ensuring you have the package xdiagnose installed, and that you click the Yes 
button for attaching additional debugging information running the following 
from a terminal:
ubuntu-bug xorg

Also, please feel free to subscribe me to it.

For more on why this is helpful, please see
https://wiki.ubuntu.com/ReportingBugs.

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[Bug 1586539] Re: Major screen flickering in Chromium and Google Chrome

[Christopher M. Penalver]

Vasya Pupkin, to clarify, if you undid your WORKAROUND, and use UXA
instead of SNA, does this also provide another WORKAROUND?

** Changed in: xserver-xorg-video-intel (Ubuntu)
   Status: Triaged => Incomplete

** Tags added: needs-zesty-test

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[Bug 1586539] Re: Major screen flickering in Chromium and Google Chrome

[agoodm]

1 fixes this for me with Ubuntu 16.04 on Thinkpad X250 with the i7 CPU.

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[Bug 1586539] Re: Major screen flickering in Chromium and Google Chrome

[Brandon MacEachern]

Yes as a first responder I would like to see this fixed in 16.04. My
radio equipment only supports LTS releases and has no support for 16.10.

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[Bug 1586539] Re: Major screen flickering in Chromium and Google Chrome

[Jacob Doherty]

Just some updated information that I hope is useful. This issue is still 
occurring.
I understand it may be fixed going forward from 16.10 but I know 16.04 LTS will 
be around for a long time! 

Any chance Ubuntu Xorg package maintainers can reach out to their
upstream?

See these bugs for more info as well:
Chromium Bug here: https://bugs.chromium.org/p/chromium/issues/detail?id=606152
Freedesktop Bug here: https://bugs.freedesktop.org/show_bug.cgi?id=94987

I can replicate with:

Ubuntu 16.04.1 (xenial)
Chrome 55.0.2883.87
Kernel: 3.10.18

X.Org X Server 1.18.4
xorg-server 2:1.18.4-0ubuntu0.2 
Current version of pixman: 0.33.6

MESA info:

Extended renderer info (GLX_MESA_query_renderer):
Vendor: Intel Open Source Technology Center (0x8086)
Device: Mesa DRI Intel(R) Bay Trail  (0xf31)
Version: 11.2.0
Accelerated: yes
Video memory: 1536MB
Unified memory: yes
Preferred profile: core (0x1)
Max core profile version: 3.3
Max compat profile version: 3.0
Max GLES1 profile version: 1.1
Max GLES[23] profile version: 3.0


Related package information:

http://pastebin.com/6A5ebWTJ


Video information:

 *-display   
   description: VGA compatible controller
   product: Atom Processor Z36xxx/Z37xxx Series Graphics & Display
   vendor: Intel Corporation
   physical id: 2
   bus info: pci@:00:02.0
   version: 0e
   width: 32 bits
   clock: 33MHz
   capabilities: pm msi vga_controller bus_master cap_list rom
   configuration: driver=i915 latency=0
   resources: irq:104 memory:d000-d03f memory:c000-cfff 
ioport:1000(size=8)

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[Bug 1586539] Re: Major screen flickering in Chromium and Google Chrome

[Joakim Koed]

Masi:

I think you misunderstood what I meant :)

The issue / workaround is not related to

   Option "Backlight" "intel_backlight"

but to:

   Option "TearFree" "true"
   Option "DRI" "3"

The reason it was not working for you before, was that you had "Section
"Device" two times, so Xorg was using the first one, without the
TearFree + DRI 3.

This is not an issue Ubuntu can fix really, since its a bug in Xorg +
"AccelMethod" "sna" without the above workarounds to make it stop.

I fear if you jump to 16.10 you wont have the issue, but you will NOT be
able to use intel_backlight since xserver-xorg-video-intel is being
removed by default in the future. But I would guess by then your laptop
will probably have better support, without the need for these "hacks"

Hope all that made sense. Glad I was able to help you out :)

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[Bug 1586539] Re: Major screen flickering in Chromium and Google Chrome

[Masi]

Origin of the bug: xserver-xorg-video-intel

1) Adjustment in `/usr/share/X11/xorg.conf/20-intel.conf` when the bug
does not occur in the internet browsers:

# Joakim
Section "Device"
   Identifier "Intel Graphics"
   Driver "intel"
   Option "AccelMethod" "sna"
   Option "TearFree" "true"
   Option "DRI" "3"
   Option "Backlight" "intel_backlight"
EndSection   

The resolution is somehow related to `intel_backlight` but we do not
know how.

2) Another option is to purge the package but then you cannot make the
other fixes (etc of F5/F6 keys) with the file 20-intel.conf.


Conclusion
---
(1) works such that you can use 20-intel.conf for other fixes. However, we do 
not understand how. Please, confirm if you can fix the case with (1) such that 
we can understand better the origin of the bug. 

Hardware: Asus Zenbook UX303UA R4028T   
Ubuntu: 16.04 64 bit
Linux kernel: 4.7
Related: http://askubuntu.com/q/816631/25388

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Title:
  Major screen flickering in Chromium and Google Chrome

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[Bug 1586539] Re: Major screen flickering in Chromium and Google Chrome

[Masi]

It affects also non-maximised windows. Related:
http://askubuntu.com/q/816631/25388

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Title:
  Major screen flickering in Chromium and Google Chrome

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[Bug 1586539] Re: Major screen flickering in Chromium and Google Chrome

[Vasya Pupkin]

** Description changed:

  On a fresh installation of Ubuntu 16.04 I noticed major screen
  flickering issues in Chromium and Google Chrome browsers. Since this
  never happened in Ubuntu 15.10 with exactly the same Google Chrome
  binary, I believe, bug is caused by something that was added/updated in
  16.04. I came across some discussions where different people suggested
  that it is related to new X.Org version.
  
  Here's a video to show what is happening:
  https://youtu.be/l21WsKz3fZc?t=45s
  
  I could fix this flickering with --disable-gpu-compositing switch, but
  this slows down page drawing significantly so it can't be considered a
  workaround. There is also a Chromium bug report:
  https://bugs.chromium.org/p/chromium/issues/detail?id=606152, but I
  don't think they will fix an Ubuntu-specific bug.
  
  Update: this indeed happens only when browser window is maximized.
  
- WORKAROUND: Add in /usr/share/X11/xorg.conf.d/20-intel.conf:
+ WORKAROUND:
  
- Section "Device"
-   Identifier "Intel Graphics"
-   Driver "intel"
-   Option "AccelMethod" "uxa"
- EndSection
+ 1. sudo apt-get purge xserver-xorg-video-intel
+ 2. sudo rm /usr/share/X11/xorg.conf.d/20-intel.conf (for those who created 
this file before)
+ 3. reboot
+ 
  
  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: xorg 1:7.7+13ubuntu3
  Uname: Linux 4.6.0-040600-generic x86_64
  .tmp.unity_support_test.0:
  
  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: amd64
  BootLog:
  
  CompizPlugins: No value set for 
`/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: compiz
  CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
  CompositorUnredirectFSW: true
  CurrentDesktop: Unity
  Date: Sat May 28 00:01:20 2016
  DistUpgraded: Fresh install
  DistroCodename: xenial
  DistroVariant: ubuntu
  DkmsStatus:
   vboxhost, 5.0.20, 4.4.0-22-generic, x86_64: installed
   vboxhost, 5.0.20, 4.6.0-040600-generic, x86_64: installed
  EcryptfsInUse: Yes
  ExtraDebuggingInterest: Yes, if not too technical
  GraphicsCard:
   Intel Corporation Haswell-ULT Integrated Graphics Controller [8086:0a2e] 
(rev 09) (prog-if 00 [VGA controller])
     Subsystem: ASUSTeK Computer Inc. Haswell-ULT Integrated Graphics 
Controller [1043:13bd]
  InstallationDate: Installed on 2016-05-01 (26 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 
(20160420.1)
  MachineType: ASUSTeK COMPUTER INC. UX301LAA
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.6.0-040600-generic 
root=UUID=172b2d49-444a-466b-ab91-b74605125b29 ro quiet splash rootfstype=ext4 
vt.handoff=7
  SourcePackage: xorg
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 06/05/2015
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: UX301LAA.211
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: UX301LAA
  dmi.board.vendor: ASUSTeK COMPUTER INC.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK COMPUTER INC.
  dmi.chassis.version: 1.0
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrUX301LAA.211:bd06/05/2015:svnASUSTeKCOMPUTERINC.:pnUX301LAA:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnUX301LAA:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
  dmi.product.name: UX301LAA
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK COMPUTER INC.
  version.compiz: compiz 1:0.9.12.2+16.04.20160415-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.67-1
  version.libgl1-mesa-dri: libgl1-mesa-dri 11.2.0-1ubuntu2
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 11.2.0-1ubuntu2
  version.xserver-xorg-core: xserver-xorg-core 2:1.18.3-1ubuntu2
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.1-1ubuntu2
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.7.0-1
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 
2:2.99.917+git20160325-1ubuntu1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 
1:1.0.12-1build2
  xserver.bootTime: Sun May 22 23:28:15 2016
  xserver.configfile: default
  xserver.errors:
  
  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:
   product id5126
   vendor SHP
  xserver.version: 2:1.18.3-1ubuntu2

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Title:
  Major screen flickering in Chromium and Google Chrome

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[Bug 1586539] Re: Major screen flickering in Chromium and Google Chrome

[byj.tea]

I had the same problem of screen flickering or tearing, not only in
Chrome but also in wine Warcraft III in opengl mode(D3D mode works
fine), and by removing package xserver-xorg-video-intel as #11 gave,
every thing just works perfectly so far.

I use this link to test, http://animated-gifs-funny.tumblr.com/archive,
mentioned by
https://bugs.chromium.org/p/chromium/issues/detail?id=606152#c44,
confirmed after the fix the problem is gone.

My system is HP xps15, Intel skylake i7-6500u, Linux mint 18, kernel
4.4.0-21-generic.

>From what apt show xserver-xorg-video-intel tells it seems it is safe to 
>remove the package if your hw is new enough.
"
This package is built from the X.org xf86-video-intel driver module.
 .
 The use of this driver is discouraged if your hw is new enough (ca.
 2007 and newer). You can try uninstalling this driver and let the
 server use it's builtin modesetting driver instead.
"

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Title:
  Major screen flickering in Chromium and Google Chrome

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[Bug 1586539] Re: Major screen flickering in Chromium and Google Chrome

[Joakim Koed]

I had alot of glitches (not using chrome, but on the desktop, unity)
using modesetting :/ Had to revert back to sna + config. I guess maybe
unity is not optimised for modesetting?

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Title:
  Major screen flickering in Chromium and Google Chrome

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[Bug 1586539] Re: Major screen flickering in Chromium and Google Chrome

[Vasya Pupkin]

Looks like this issue will never be fixed because no one cares about
xf86-video-intel. Newer version of Ubuntu and Debian distributions
switched to xf86-video-modesetting, more info can be found here:
http://phoronix.com/scan.php?page=news_item=Ubuntu-Debian-Abandon-
Intel-DDX

So the solution is simple:

1. sudo apt-get purge xserver-xorg-video-intel
2. sudo rm /usr/share/X11/xorg.conf.d/20-intel.conf (for those who created this 
file before)
3. reboot

I've been testing this fix for 3 days and the only issue I found was
xbacklight tool no longer working, which is a known issue as well.

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Title:
  Major screen flickering in Chromium and Google Chrome

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[Bug 1586539] Re: Major screen flickering in Chromium and Google Chrome

[Vasya Pupkin]

This looks like a proper solution:
https://bugs.chromium.org/p/chromium/issues/detail?id=606152#c73

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  Major screen flickering in Chromium and Google Chrome

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[Bug 1586539] Re: Major screen flickering in Chromium and Google Chrome

[Justoneslave]

Thank you Joakim. Fix works perfectly.

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  Major screen flickering in Chromium and Google Chrome

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[Bug 1586539] Re: Major screen flickering in Chromium and Google Chrome

[Joakim Koed]

New and better fix if you still want to use SNA, insted of UXA.

sudo nano /usr/share/X11/xorg.conf.d/20-intel.conf

Section "Device"
   Identifier  "Intel Graphics"
   Driver  "intel"
   Option  "AccelMethod"  "sna"
   Option  "TearFree""true"
   Option  "DRI""3"
EndSection

Save and reboot.

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Title:
  Major screen flickering in Chromium and Google Chrome

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[Bug 1586539] Re: Major screen flickering in Chromium and Google Chrome

[Christopher M. Penalver]

** Description changed:

  On a fresh installation of Ubuntu 16.04 I noticed major screen
  flickering issues in Chromium and Google Chrome browsers. Since this
  never happened in Ubuntu 15.10 with exactly the same Google Chrome
  binary, I believe, bug is caused by something that was added/updated in
  16.04. I came across some discussions where different people suggested
  that it is related to new X.Org version.
  
  Here's a video to show what is happening:
  https://youtu.be/l21WsKz3fZc?t=45s
  
  I could fix this flickering with --disable-gpu-compositing switch, but
  this slows down page drawing significantly so it can't be considered a
  workaround. There is also a Chromium bug report:
  https://bugs.chromium.org/p/chromium/issues/detail?id=606152, but I
  don't think they will fix an Ubuntu-specific bug.
  
  Update: this indeed happens only when browser window is maximized.
+ 
+ WORKAROUND: Add in /usr/share/X11/xorg.conf.d/20-intel.conf:
+ 
+ Section "Device"
+   Identifier "Intel Graphics"
+   Driver "intel"
+   Option "AccelMethod" "uxa"
+ EndSection
  
  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: xorg 1:7.7+13ubuntu3
  Uname: Linux 4.6.0-040600-generic x86_64
  .tmp.unity_support_test.0:
  
  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: amd64
  BootLog:
  
  CompizPlugins: No value set for 
`/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: compiz
  CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
  CompositorUnredirectFSW: true
  CurrentDesktop: Unity
  Date: Sat May 28 00:01:20 2016
  DistUpgraded: Fresh install
  DistroCodename: xenial
  DistroVariant: ubuntu
  DkmsStatus:
   vboxhost, 5.0.20, 4.4.0-22-generic, x86_64: installed
   vboxhost, 5.0.20, 4.6.0-040600-generic, x86_64: installed
  EcryptfsInUse: Yes
  ExtraDebuggingInterest: Yes, if not too technical
  GraphicsCard:
   Intel Corporation Haswell-ULT Integrated Graphics Controller [8086:0a2e] 
(rev 09) (prog-if 00 [VGA controller])
     Subsystem: ASUSTeK Computer Inc. Haswell-ULT Integrated Graphics 
Controller [1043:13bd]
  InstallationDate: Installed on 2016-05-01 (26 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 
(20160420.1)
  MachineType: ASUSTeK COMPUTER INC. UX301LAA
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.6.0-040600-generic 
root=UUID=172b2d49-444a-466b-ab91-b74605125b29 ro quiet splash rootfstype=ext4 
vt.handoff=7
  SourcePackage: xorg
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 06/05/2015
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: UX301LAA.211
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: UX301LAA
  dmi.board.vendor: ASUSTeK COMPUTER INC.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK COMPUTER INC.
  dmi.chassis.version: 1.0
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrUX301LAA.211:bd06/05/2015:svnASUSTeKCOMPUTERINC.:pnUX301LAA:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnUX301LAA:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
  dmi.product.name: UX301LAA
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK COMPUTER INC.
  version.compiz: compiz 1:0.9.12.2+16.04.20160415-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.67-1
  version.libgl1-mesa-dri: libgl1-mesa-dri 11.2.0-1ubuntu2
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 11.2.0-1ubuntu2
  version.xserver-xorg-core: xserver-xorg-core 2:1.18.3-1ubuntu2
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.1-1ubuntu2
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.7.0-1
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 
2:2.99.917+git20160325-1ubuntu1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 
1:1.0.12-1build2
  xserver.bootTime: Sun May 22 23:28:15 2016
  xserver.configfile: default
  xserver.errors:
  
  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:
   product id5126
   vendor SHP
  xserver.version: 2:1.18.3-1ubuntu2

** Tags added: latest-bios-211

** Package changed: xorg (Ubuntu) => xserver-xorg-video-intel (Ubuntu)

** Changed in: xserver-xorg-video-intel (Ubuntu)
   Status: Confirmed => Triaged

** Changed in: xserver-xorg-video-intel (Ubuntu)
 Assignee: Manuel (marsbellini) => (unassigned)

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Title:
  Major screen flickering in Chromium and Google Chrome

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[Bug 1586539] Re: Major screen flickering in Chromium and Google Chrome

[Benjamin Gemmill]

The xorg folks are aware of this too:
https://bugs.freedesktop.org/show_bug.cgi?id=94987


** Bug watch added: freedesktop.org Bugzilla #94987
   https://bugs.freedesktop.org/show_bug.cgi?id=94987

** Also affects: xorg-server via
   https://bugs.freedesktop.org/show_bug.cgi?id=94987
   Importance: Unknown
   Status: Unknown

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  Major screen flickering in Chromium and Google Chrome

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[Bug 1586539] Re: Major screen flickering in Chromium and Google Chrome

[Vasya Pupkin]

joakimk...@gmail.com posted a real workaround on chromium bug tracker:

===
sudo nano /usr/share/X11/xorg.conf.d/20-intel.conf 

Paste this:

Section "Device"
  Identifier "Intel Graphics"
  Driver "intel"
  Option "AccelMethod" "uxa"
EndSection

Save and reboot.
===

This works for me.

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  Major screen flickering in Chromium and Google Chrome

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[Bug 1586539] Re: Major screen flickering in Chromium and Google Chrome

[Joe6832]

Affects me too. There are a lot people outside this thread having this
annoying flickering:

https://www.google.de/search?q=--disable-gpu-driver-bug-
workarounds+flicker_rd=ssl#q=%22--disable-gpu-driver-bug-
workarounds%22+flicker+chrome

So i think this bug should categorized to high-prio!

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  Major screen flickering in Chromium and Google Chrome

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[Bug 1586539] Re: Major screen flickering in Chromium and Google Chrome

[Manuel]

** Changed in: xorg (Ubuntu)
 Assignee: (unassigned) => Manuel (marsbellini)

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  Major screen flickering in Chromium and Google Chrome

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[Bug 1586539] Re: Major screen flickering in Chromium and Google Chrome

[Vasya Pupkin]

** Description changed:

  On a fresh installation of Ubuntu 16.04 I noticed major screen
  flickering issues in Chromium and Google Chrome browsers. Since this
  never happened in Ubuntu 15.10 with exactly the same Google Chrome
  binary, I believe, bug is caused by something that was added/updated in
  16.04. I came across some discussions where different people suggested
  that it is related to new X.Org version.
  
  Here's a video to show what is happening:
  https://youtu.be/l21WsKz3fZc?t=45s
  
  I could fix this flickering with --disable-gpu-compositing switch, but
  this slows down page drawing significantly so it can't be considered a
  workaround. There is also a Chromium bug report:
  https://bugs.chromium.org/p/chromium/issues/detail?id=606152, but I
  don't think they will fix an Ubuntu-specific bug.
  
+ Update: this indeed happens only when browser window is maximized.
+ 
  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: xorg 1:7.7+13ubuntu3
  Uname: Linux 4.6.0-040600-generic x86_64
  .tmp.unity_support_test.0:
-  
+ 
  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: amd64
  BootLog:
-  
+ 
  CompizPlugins: No value set for 
`/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: compiz
  CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
  CompositorUnredirectFSW: true
  CurrentDesktop: Unity
  Date: Sat May 28 00:01:20 2016
  DistUpgraded: Fresh install
  DistroCodename: xenial
  DistroVariant: ubuntu
  DkmsStatus:
-  vboxhost, 5.0.20, 4.4.0-22-generic, x86_64: installed
-  vboxhost, 5.0.20, 4.6.0-040600-generic, x86_64: installed
+  vboxhost, 5.0.20, 4.4.0-22-generic, x86_64: installed
+  vboxhost, 5.0.20, 4.6.0-040600-generic, x86_64: installed
  EcryptfsInUse: Yes
  ExtraDebuggingInterest: Yes, if not too technical
  GraphicsCard:
-  Intel Corporation Haswell-ULT Integrated Graphics Controller [8086:0a2e] 
(rev 09) (prog-if 00 [VGA controller])
-Subsystem: ASUSTeK Computer Inc. Haswell-ULT Integrated Graphics 
Controller [1043:13bd]
+  Intel Corporation Haswell-ULT Integrated Graphics Controller [8086:0a2e] 
(rev 09) (prog-if 00 [VGA controller])
+    Subsystem: ASUSTeK Computer Inc. Haswell-ULT Integrated Graphics 
Controller [1043:13bd]
  InstallationDate: Installed on 2016-05-01 (26 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 
(20160420.1)
  MachineType: ASUSTeK COMPUTER INC. UX301LAA
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.6.0-040600-generic 
root=UUID=172b2d49-444a-466b-ab91-b74605125b29 ro quiet splash rootfstype=ext4 
vt.handoff=7
  SourcePackage: xorg
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 06/05/2015
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: UX301LAA.211
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: UX301LAA
  dmi.board.vendor: ASUSTeK COMPUTER INC.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK COMPUTER INC.
  dmi.chassis.version: 1.0
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrUX301LAA.211:bd06/05/2015:svnASUSTeKCOMPUTERINC.:pnUX301LAA:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnUX301LAA:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
  dmi.product.name: UX301LAA
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK COMPUTER INC.
  version.compiz: compiz 1:0.9.12.2+16.04.20160415-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.67-1
  version.libgl1-mesa-dri: libgl1-mesa-dri 11.2.0-1ubuntu2
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 11.2.0-1ubuntu2
  version.xserver-xorg-core: xserver-xorg-core 2:1.18.3-1ubuntu2
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.1-1ubuntu2
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.7.0-1
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 
2:2.99.917+git20160325-1ubuntu1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 
1:1.0.12-1build2
  xserver.bootTime: Sun May 22 23:28:15 2016
  xserver.configfile: default
  xserver.errors:
-  
+ 
  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:
-  product id5126 
-  vendor SHP
+  product id5126
+  vendor SHP
  xserver.version: 2:1.18.3-1ubuntu2

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https://bugs.launchpad.net/bugs/1586539

Title:
  Major screen flickering in Chromium and Google Chrome

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[Bug 1586539] Re: Major screen flickering in Chromium and Google Chrome

[Alberto Salvia Novella]

** Changed in: xorg (Ubuntu)
   Importance: Undecided => Medium

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https://bugs.launchpad.net/bugs/1586539

Title:
  Major screen flickering in Chromium and Google Chrome

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[Bug 1586539] Re: Major screen flickering in Chromium and Google Chrome

[Launchpad Bug Tracker]

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

** Changed in: xorg (Ubuntu)
   Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1586539

Title:
  Major screen flickering in Chromium and Google Chrome

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