[Ubuntu-x-swat] [Bug 1507255] Re: Garbled graphics in Wily with Intel GMA4500 chip

[Paul White]

Closing as seems this issue was fixed in Ubuntu 16.04.

** Changed in: hundredpapercuts
   Status: Incomplete => Fix Released

** Changed in: xserver-xorg-video-intel
   Status: New => Fix Released

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[Ubuntu-x-swat] [Bug 1507255] Re: Garbled graphics in Wily with Intel GMA4500 chip

[jerrylamos]

A couple weeks ago I did a fresh install of ubuntu-14.04.desktop.iso LTS
and the garbled text bug 1507255 was back.  Usual fix of

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

worked.

Xenial new installs have been fine lately.  Putting that uxa fix in
Xenial prevents X windows from running.

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[Ubuntu-x-swat] [Bug 1507255] Re: Garbled graphics in Wily with Intel GMA4500 chip

[Erick Brunzell]

** Changed in: xserver-xorg-video-intel (Ubuntu)
 Assignee: Kyle Brophy (kylebrophy) => (unassigned)

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[Ubuntu-x-swat] [Bug 1507255] Re: Garbled graphics in Wily with Intel GMA4500 chip

[Kyle Brophy]

** Changed in: xserver-xorg-video-intel (Ubuntu)
 Assignee: (unassigned) => Kyle Brophy (kylebrophy)

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[Ubuntu-x-swat] [Bug 1507255] Re: Garbled graphics in Wily with Intel GMA4500 chip

[Timo Aaltonen]

in a few months you'll have lts-xenial stack, and that is supported
until 2019, not lts-wily

if you want it fixed quicker then someone needs to bisect the driver

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[Ubuntu-x-swat] [Bug 1507255] Re: Garbled graphics in Wily with Intel GMA4500 chip

[jerrylamos]

Starting in November 2014 Ubuntu X windows screwed up with 
VGA compatible controller: Intel Corporation 4 Series Chipset Integrated 
Graphics Controller (rev 03)
making Wallpaper badly hashed.  
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1507255
Then a couple months later even Ubuntu text badly garbled, illegible.
Workarond was:

/usr/share/X11/xorg.conf.d/20-intel.conf
Section "Device"
   Identifier "Intel Graphics"
   Driver "intel"
Option "AccelMethod" "uxa"
EndSection

So in every install since Nov. 2014 I've been making that change.
As of March 2016, that change screws up X windows and can't get desktop.

Voila, not needed, Xwindows now running fine.  That took Ubuntu a year and a 
half to fix.
Wonder how long ubuntu Xwindows will stay fixted

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[Ubuntu-x-swat] [Bug 1507255] Re: Garbled graphics in Wily with Intel GMA4500 chip

[Erick Brunzell]

@ jerrylamos, which HWE stack is in use? It mostly depends on what
installation media is used (unless physical action is taken to upgrade
the HWE stack):

https://wiki.ubuntu.com/Kernel/LTSEnablementStack#Kernel.2FSupport.A14.04.x_Ubuntu_Kernel_Support

Based on my most recent results it seemed to be more of a kernel issue
than X itself.

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[Ubuntu-x-swat] [Bug 1507255] Re: Garbled graphics in Wily with Intel GMA4500 chip

[jerrylamos]

Not fixed in 14.04.4 LTS.  14.04 originally did not have this garbled
problem, but a fresh install of 14.04 does.

Should I enter a new bug against 14.04 LTS since this Xenial bug is
fixed?  14.04 is supposed to be supported until 2019 I think.

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[Ubuntu-x-swat] [Bug 1507255] Re: Garbled graphics in Wily with Intel GMA4500 chip

[Timo Aaltonen]

Redhat is not the upstream

And since it's fixed in xenial I'm closing this. Upgrade or bisect the
driver and propose patches.

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

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[Ubuntu-x-swat] [Bug 1507255] Re: Garbled graphics in Wily with Intel GMA4500 chip

[Erick Brunzell]

Xenial looks good testing Ubuntu GNOME 20160218 amd64:

ubuntu-gnome@ubuntu-gnome:~$ uname -a
Linux ubuntu-gnome 4.4.0-6-generic #21-Ubuntu SMP Tue Feb 16 20:32:27 UTC 2016 
x86_64 x86_64 x86_64 GNU/Linux
ubuntu-gnome@ubuntu-gnome:~$ apt-cache policy xserver-xorg-video-intel
xserver-xorg-video-intel:
  Installed: 2:2.99.917+git20160127-1ubuntu1
  Candidate: 2:2.99.917+git20160127-1ubuntu1
  Version table:
 *** 2:2.99.917+git20160127-1ubuntu1 500
500 http://archive.ubuntu.com/ubuntu xenial/main amd64 Packages
100 /var/lib/dpkg/status
ubuntu-gnome@ubuntu-gnome:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:Ubuntu Xenial Xerus (development branch)
Release:16.04
Codename:   xenial

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[Ubuntu-x-swat] [Bug 1507255] Re: Garbled graphics in Wily with Intel GMA4500 chip

[Erick Brunzell]

It took a considerable amount of searching but the sna vs uxa issue does
have at least two upstream bug reports:

https://bugzilla.redhat.com/show_bug.cgi?id=1226531

https://bugzilla.redhat.com/show_bug.cgi?id=1226743

I believe that should be sufficient. It's a known issue. I'll have to
look at these newer (proposed) kernel changelogs to see if I can figure
what exactly they changed.

** Bug watch added: Red Hat Bugzilla #1226531
   https://bugzilla.redhat.com/show_bug.cgi?id=1226531

** Bug watch added: Red Hat Bugzilla #1226743
   https://bugzilla.redhat.com/show_bug.cgi?id=1226743

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

** Tags added: linux

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[Ubuntu-x-swat] [Bug 1507255] Re: Garbled graphics in Wily with Intel GMA4500 chip

[Erick Brunzell]

Ubuntu Trusty 20160217 amd64 is still affected so I doubt that a fix
will land for 14.04.4. That will be problematic for less advanced users
affected because both the Wily and the updated Trusty images offered
from the main download page(s) will fail to work.

To me the obvious simple "workaround" is to recommend using the archived
14.04.1 images that still use the 3.13 series kernel as these are not
affected. The one caveat that those writing release notes and/or release
announcements is when we recommend using the archived 14.04.1 images we
must be certain to warn of ubiquity bug #1265192 so users don't
inadvertently wipe out existing data.

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[Ubuntu-x-swat] [Bug 1507255] Re: Garbled graphics in Wily with Intel GMA4500 chip

[Erick Brunzell]

As far as reporting upstream to move the status from incomplete back to
confirmed - I have no idea what I'm doing :^(

Is this an X bug as originally thought? Or a kernel bug as now seems to
be the case? I clearly can't create a new bugzilla account and file a
bug report when I have no idea what I'm doing.

AFAIK incomplete bugs expire? Why should we let this expire just because
I lack the tech know-how to file upstream?

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[Ubuntu-x-swat] [Bug 1507255] Re: Garbled graphics in Wily with Intel GMA4500 chip

[Erick Brunzell]

I took time to check Wily and the results are similar. This bug is
present with the 4.2.0-27.30 kernel but the 4.2.0-29.31 kernel is OK.

So I'm guessing the updated intel driver fails to build properly with
kernels prior to 4.2.0-29

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[Ubuntu-x-swat] [Bug 1507255] Re: Garbled graphics in Wily with Intel GMA4500 chip

[Erick Brunzell]

Looking at the 14.04.4 RC again this AM I find that the 4.2.0-29.23
kernel is OK, but this bug is present with 4.2.0-27.21. So this is
apparently not so much an X bug as a kernel bug??

AFAIK Xenial is (or at least has been) affected by this also and I'll be
testing the Beta 1 candidates next week. I haven't tried testing Wily
any further but it's time for me to revisit that and see if a kernel
upgrade in Wily fixes the issue or not.

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[Ubuntu-x-swat] [Bug 1507255] Re: Garbled graphics in Wily with Intel GMA4500 chip

[Erick Brunzell]

Lubuntu Trusty is affected to a much lesser degree so I was at least
able to install it. I'm going to try the newest kernel from proposed
tomorrow.

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[Ubuntu-x-swat] [Bug 1507255] Re: Garbled graphics in Wily with Intel GMA4500 chip

[Erick Brunzell]

The Trusty images had been good up through 20160214 but the 20160215
image is affected again. They appear to be using:

xserver-xorg-video-intel-lts-wily
2:2.99.917+git20150808-0ubuntu4~trusty2

So I need to dig a bit deeper.

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[Ubuntu-x-swat] [Bug 1507255] Re: Garbled graphics in Wily with Intel GMA4500 chip

[Erick Brunzell]

I was surprised testing the Trusty Daily Ubuntu GNOME 20160207 amd64
image to find that it works OK in a live session so just making a note
for my own use regarding version:

xserver-xorg-video-intel-lts-wily
2:2.99.917+git20150808-0ubuntu4~trusty2

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[Ubuntu-x-swat] [Bug 1507255] Re: Garbled graphics in Wily with Intel GMA4500 chip

[Erick Brunzell]

Not surprisingly this also affects the Trusty dailies based on testing
Ubuntu GNOME Trusty 20160124 amd64 since they have the Wily HWE. So the
flavors participating may want to mention it in their release notes,
recommending that users affected use the archived 14.04.1 images.

** Tags added: 14.04.4

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[Ubuntu-x-swat] [Bug 1507255] Re: Garbled graphics in Wily with Intel GMA4500 chip

[Erick Brunzell]

Still affects Ubuntu GNOME Xenial 20160121 amd64. So I guess I'll have
to create a Bugzilla account and try to figure out their bug filing
process when I have time.

** Tags added: amd64 xenial

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[Ubuntu-x-swat] [Bug 1507255] Re: Garbled graphics in Wily with Intel GMA4500 chip

[Timo Aaltonen]

best to try the new xenial snapshot before filing a bug upstream (once
it's built):

https://launchpad.net/ubuntu/+source/xserver-xorg-video-
intel/2:2.99.917+git20151217-1~exp1ubuntu1

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[Ubuntu-x-swat] [Bug 1507255] Re: Garbled graphics in Wily with Intel GMA4500 chip

[Alberto Salvia Novella]

Please:

1. Report this bug to .
2. Paste the new report URL here.
3. Set this bug status back to "confirmed".

Thank you.

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

** Also affects: xserver-xorg-video-intel
   Importance: Undecided
   Status: New

** Also affects: hundredpapercuts
   Importance: Undecided
   Status: New

** Changed in: hundredpapercuts
   Status: New => Triaged

** Changed in: hundredpapercuts
   Importance: Undecided => Critical

** Changed in: hundredpapercuts
   Status: Triaged => Incomplete

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[Ubuntu-x-swat] [Bug 1507255] Re: Garbled graphics in Wily with Intel GMA4500 chip

[MyResolve]

#5 with #8 worked for me fine.

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[Ubuntu-x-swat] [Bug 1507255] Re: Garbled graphics in Wily with Intel GMA4500 chip

[The Great Gazauga]

Solution in #8 worked for me as well. Upgraded to 15.10 and had the
garbled screen. The config file fixed it.

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Re: [Ubuntu-x-swat] [Bug 1507255] Re: Garbled graphics in Wily with Intel GMA4500 chip

[José do Nascimento Dias]

Could you, please, help me with this "solution #8 ? I don't know what it
is. Which is the "config file" you referrer to?Thanks.

> Date: Sun, 15 Nov 2015 20:44:34 +
> From: eanbow...@gmail.com
> To: josef.nascime...@hotmail.com
> Subject: [Bug 1507255] Re: Garbled graphics in Wily with Intel GMA4500 chip
> 
> Solution in #8 worked for me as well. Upgraded to 15.10 and had the
> garbled screen. The config file fixed it.
> 
> -- 
> You received this bug notification because you are subscribed to a
> duplicate bug report (1509196).
> https://bugs.launchpad.net/bugs/1507255
> 
> Title:
>   Garbled graphics in Wily with Intel GMA4500 chip
> 
> Status in xserver-xorg-video-intel package in Ubuntu:
>   Confirmed
> 
> Bug description:
>   This affects both Ubuntu GNOME and Ubuntu Wily 20151017.1. The
>   graphics are so badly garbled I can only file this bug on an
>   unaffected OS where I've held back the update on just that one package
>   to about Beta 1 status:
> 
>   lance@lance-INTEL-desktop:~$ apt-cache policy xserver-xorg-video-intel
>   xserver-xorg-video-intel:
> Installed: 2:2.99.917-1ubuntu1
> Candidate: 2:2.99.917+git20150808-0ubuntu4
> Version table:
>2:2.99.917+git20150808-0ubuntu4 0
>   500 http://us.archive.ubuntu.com/ubuntu/ wily/main i386 Packages
>*** 2:2.99.917-1ubuntu1 0
>   100 /var/lib/dpkg/status
> 
>   I'll attach a picture of the garbled screen with the updated xserver-
>   xorg-video-intel package. Oddly a screenshot taken from the affected
>   OS displays perfectly OK in the unaffected OS so I used my camera.
> 
>   The info provided by lspci may not be very helpful:
> 
>   lance@lance-INTEL-desktop:~$ lspci -v -s `lspci | awk '/VGA/{print $1}'`
>   00:02.0 VGA compatible controller: Intel Corporation 4 Series Chipset 
> Integrated Graphics Controller (rev 03) (prog-if 00 [VGA controller])
>Subsystem: Intel Corporation Device 0025
>Flags: bus master, fast devsel, latency 0, IRQ 27
>Memory at d000 (64-bit, non-prefetchable) [size=4M]
>Memory at c000 (64-bit, prefetchable) [size=256M]
>I/O ports at f1c0 [size=8]
>Expansion ROM at  [disabled]
>Capabilities: 
>Kernel driver in use: i915
> 
>   The tech specs show:
> 
>   Internal Graphics:
>   • Intel ® GMA4500 onboard graphics subsystem with support for:
>   ― Analog displays (VGA)
>   ― Digital displays (DVI-D)
> 
>   I'm just using VGA ATM.
> 
>   Something else worth mentioning is this warning displayed while filing
>   the bug report:
> 
>   Your system is providing 3D via software rendering rather than
>   hardware rendering.  This is a compatibility mode which should display
>   3D graphics properly but the performance may be very poor.  If the
>   problem you're reporting is related to graphics performance, your real
>   question may be why X didn't use hardware acceleration for your
>   system.
> 
>   I did try booting an earlier kernel to no avail, but holding back just
>   this one update prevents the borkage.
> 
>   ProblemType: Bug
>   DistroRelease: Ubuntu 15.10
>   Package: xserver-xorg-video-intel 2:2.99.917-1ubuntu1
>   ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3
>   Uname: Linux 4.2.0-16-generic i686
>   ApportVersion: 2.19.1-0ubuntu2
>   Architecture: i386
>   CompizPlugins: No value set for 
> `/apps/compiz-1/general/screen0/options/active_plugins'
>   CompositorRunning: None
>   CurrentDesktop: GNOME
>   Date: Sun Oct 18 00:17:35 2015
>   DistUpgraded: Fresh install
>   DistroCodename: wily
>   DistroVariant: ubuntu
>   ExtraDebuggingInterest: Yes, if not too technical
>   GraphicsCard:
>Intel Corporation 4 Series Chipset Integrated Graphics Controller 
> [8086:2e42] (rev 03) (prog-if 00 [VGA controller])
>  Subsystem: Intel Corporation Device [8086:0025]
>  Subsystem: Intel Corporation Device [8086:0025]
>   InstallationDate: Installed on 2015-08-26 (52 days ago)
>   InstallationMedia: Ubuntu-GNOME 15.10 "Wily Werewolf" - Alpha i386 
> (20150826.1)
>   ProcEnviron:
>TERM=xterm-256color
>PATH=(custom, no user)
>XDG_RUNTIME_DIR=
>LANG=en_US.UTF-8
>SHELL=/bin/bash
>   ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-16-generic 
> root=UUID=39597a1e-90b6-4e81-ae29-4c01d28f7f17 ro quiet splash vt.handoff=7
>   Renderer: Software
>   SourcePackage: xserver-xorg-video-intel
>   UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
>   UpgradeStatus: No upgrade log present (probably fresh install)
>   dmi.bios.date: 12/23/2010
>   dmi.bios.vendor: Intel Corp.
>   dmi.bios.version: LDB4310H.86A.0037.2010.1223.1121
>   dmi.board.asset.tag: To be filled by O.E.M.
>   dmi.board.name: DB43LD
>   dmi.board.vendor: Intel Corporation
>   dmi.board.version: AAE60577-202
>   dmi.chassis.type: 3
>   dmi.modalias: 
> dmi:bvnIntelCorp.:bvrLDB4310H.86A.0037.2010.1223.1121:bd12/23/2010:svn:pn:pvr:rvnIntelCorporation:rnDB43LD:rvrAAE60577-202:cvn:ct3:cvr:
>   version.compiz: compiz N/A
>   

[Ubuntu-x-swat] [Bug 1507255] Re: Garbled graphics in Wily with Intel GMA4500 chip

[jerrylamos]

My comments on entry #13:
gedit   20-intel.conf
Copy in the lines starting with Section and ending with EndSection: 
[code]
Section "Device"
   Identifier "Intel Graphics"
   Driver "intel"
   Option "AccelMethod" "uxa"
EndSection
[/code]
save
quit
sudo cp 20-intel.conf   /usr/share/X11/xorg.conf.d
enter your password

Check to see if the entry made it into the directory O.K.:
cat /usr/share/X11/xorg.conf.d/20-intel.conf

Now /usr/share/X11/xorg.conf.d is read once on boot so you have to reboot for 
it to take effect.
What this configuration does is tell X11 to use the method "uxa" an older 
section of code, since on this pc the newer code "sna" screws up.

If this configuration doesn't work for you, then delete the
20-intel.conf   entry  in  /usr/share/X11/xorg.conf.d

Now Xenial and Wily install .iso's are a real bear to read on this Lenovo M58p 
because of the garbled text.  On finish of install, before I do a reboot, I use 
the install ubunto to make the conf.d entry into the target ubuntu install.  
That's a bit tricky.
Let us know how you do.

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Title:
  Garbled graphics in Wily with Intel GMA4500 chip

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[Ubuntu-x-swat] [Bug 1507255] Re: Garbled graphics in Wily with Intel GMA4500 chip

[Yannick Mauray]

I confirm #8 works for Ubuntu MATE 15.10, with an Intel 4 Series
Chipset.

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Title:
  Garbled graphics in Wily with Intel GMA4500 chip

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[Ubuntu-x-swat] [Bug 1507255] Re: Garbled graphics in Wily with Intel GMA4500 chip

[jerrylamos]

Comment #8 works in Xenial Xerus as well.

Yay, I can read the screen, wallpaper is right, wonder how long the fix
will work.

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  Garbled graphics in Wily with Intel GMA4500 chip

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[Ubuntu-x-swat] [Bug 1507255] Re: Garbled graphics in Wily with Intel GMA4500 chip

[Cass Stephen]

# jerrylamos (jerrylamos) wrote on 2015-10-29:  #26
# How do I tell if this Lenovo M58p has Intel GMA4500 ?

google m85p gma4500 --> cnet review stating that it does.

or

glxinfo | grep OpenGL

and see something about G45

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Title:
  Garbled graphics in Wily with Intel GMA4500 chip

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[Ubuntu-x-swat] [Bug 1507255] Re: Garbled graphics in Wily with Intel GMA4500 chip

[Cass Stephen]

Under Ubuntu-Mate 15.04 only my wallpaper, scroll-sliders, and right window 
edges were garbled. 
After do-release-upgrade to 15.10 all of the things are hashed garbled tearing 
whatever, even the text, even inside terminal windows.

Cory Davis (corzneffect) is correct;
Downgrading the video acceleration from "sna" to "uxa" works as a temporary fix:

#Create a config file;
sudo nano /usr/share/X11/xorg.conf.d/20-intel.conf

#Add the following lines
Section "Device"
   Identifier "Intel Graphics"
   Driver "intel"
   Option "AccelMethod" "uxa"
EndSection

#reboot

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Title:
  Garbled graphics in Wily with Intel GMA4500 chip

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[Ubuntu-x-swat] [Bug 1507255] Re: Garbled graphics in Wily with Intel GMA4500 chip

[Robert Di Gioia]

This also impacts me. Screen becomes garbled quicker if Firefox is
running. Screen takes a bit longer to become garbled if only Thunderbird
is running.

I tried Cory's fix above, and it hasn't garbled the screen in about 45
minutes minutes with Firefox, Thunderbird, and other graphical apps
running simultaneously. On my system the file
/usr/share/X11/xorg.conf.d/20-intel.conf didn't exist, so I created it
with the contents that Cory provided.

>From uname -a:
Linux gandalf 4.2.0-16-generic #19-Ubuntu SMP Thu Oct 8 14:46:51 UTC 2015 i686 
i686 i686 GNU/Linux

>From lspci:
00:02.0 VGA compatible controller: Intel Corporation 82945G/GZ Integrated 
Graphics Controller (rev 02) (prog-if 00 [VGA controller])
Subsystem: ASUSTeK Computer Inc. Device 817a
Flags: bus master, fast devsel, latency 0, IRQ 16
Memory at dfd0 (32-bit, non-prefetchable) [size=512K]
I/O ports at b800 [size=8]
Memory at c000 (32-bit, prefetchable) [size=256M]
Memory at dfd8 (32-bit, non-prefetchable) [size=256K]
Expansion ROM at  [disabled]
Capabilities: [90] MSI: Enable- Count=1/1 Maskable- 64bit-
Capabilities: [d0] Power Management version 2
Kernel driver in use: i915

I see these messages in the syslog that seem to correspond to each time that 
the screen becomes garbled: 
Oct 31 18:25:16 gandalf kernel: [22669.004026] [drm] stuck on render ring
Oct 31 18:25:16 gandalf kernel: [22669.006035] [drm] GPU HANG: ecode 
3:0:0x677fff41, in Xorg [960], reason: Ring hung, action: reset
Oct 31 18:25:16 gandalf kernel: [22669.006040] [drm] GPU hangs can indicate a 
bug anywhere in the entire gfx stack, including userspace.
Oct 31 18:25:16 gandalf kernel: [22669.006042] [drm] Please file a _new_ bug 
report on bugs.freedesktop.org against DRI -> DRM/Intel
Oct 31 18:25:16 gandalf kernel: [22669.006045] [drm] drm/i915 developers can 
then reassign to the right component if it's not a kernel issue.
Oct 31 18:25:16 gandalf kernel: [22669.006047] [drm] The gpu crash dump is 
required to analyze gpu hangs, so please always attach it.
Oct 31 18:25:16 gandalf kernel: [22669.006050] [drm] GPU crash dump saved to 
/sys/class/drm/card0/error
Oct 31 18:25:16 gandalf kernel: [22669.006151] [ cut here 
]
Oct 31 18:25:16 gandalf kernel: [22669.006225] WARNING: CPU: 0 PID: 357 at 
/build/linux-hXawIp/linux-4.2.0/drivers/gpu/drm/i915/intel_display.c:3294 
intel_crtc_wait_for_pending_flips+0x17c/0x220 [i915]()
Oct 31 18:25:16 gandalf kernel: [22669.006234] WARN_ON(ret)
Oct 31 18:25:16 gandalf kernel: [22669.006241] Modules linked in: ftdi_sio 
usbserial snd_hda_codec_analog snd_hda_codec_generic gpio_ich snd_hda_intel 
snd_hda_codec snd_hda_core snd_hwdep joydev snd_pcm snd_seq_midi 
snd_seq_midi_event snd_rawmidi input_leds snd_seq serio_raw snd_seq_device 
snd_timer snd 8250_fintek soundcore asus_atk0110 lpc_ich shpchp mac_hid 
parport_pc ppdev lp parport autofs4 jitterentropy_rng drbg ansi_cprng xts 
gf128mul algif_skcipher af_alg dm_crypt hid_generic usbhid hid i915 video 
firewire_ohci i2c_algo_bit drm_kms_helper firewire_core r8169 crc_itu_t 
pata_acpi drm mii
Oct 31 18:25:16 gandalf kernel: [22669.006379] CPU: 0 PID: 357 Comm: 
kworker/u8:3 Not tainted 4.2.0-16-generic #19-Ubuntu
Oct 31 18:25:16 gandalf kernel: [22669.006385] Hardware name: System 
manufacturer System Product Name/P5L8L-SE, BIOS 020110/09/2007
Oct 31 18:25:16 gandalf kernel: [22669.006439] Workqueue: i915-hangcheck 
i915_hangcheck_elapsed [i915]
Oct 31 18:25:16 gandalf kernel: [22669.006446]  c1a629a7 fc2bbb5e  
f5701d48 c175dae1 f5701d88 f5701d78 c106a687
Oct 31 18:25:16 gandalf kernel: [22669.006462]  f8d6a8e9 f5701da8 0165 
f8d5ca44 0cde f8cff22c f8cff22c f546
Oct 31 18:25:16 gandalf kernel: [22669.006478]  f5a1e434 0001 f5701d94 
c106a6fe 0009 f5701d88 f8d6a8e9 f5701da8
Oct 31 18:25:16 gandalf kernel: [22669.006493] Call Trace:
Oct 31 18:25:16 gandalf kernel: [22669.006510]  [] 
dump_stack+0x41/0x52
Oct 31 18:25:16 gandalf kernel: [22669.006523]  [] 
warn_slowpath_common+0x87/0xc0
Oct 31 18:25:16 gandalf kernel: [22669.006581]  [] ? 
intel_crtc_wait_for_pending_flips+0x17c/0x220 [i915]
Oct 31 18:25:16 gandalf kernel: [22669.006636]  [] ? 
intel_crtc_wait_for_pending_flips+0x17c/0x220 [i915]
Oct 31 18:25:16 gandalf kernel: [22669.006649]  [] 
warn_slowpath_fmt+0x3e/0x60
Oct 31 18:25:16 gandalf kernel: [22669.006707]  [] 
intel_crtc_wait_for_pending_flips+0x17c/0x220 [i915]
Oct 31 18:25:16 gandalf kernel: [22669.006753]  [] ? 
drm_modeset_lock_all_crtcs+0x84/0x90 [drm]
Oct 31 18:25:16 gandalf kernel: [22669.006809]  [] 
intel_crtc_disable_planes+0x34/0xf0 [i915]
Oct 31 18:25:16 gandalf kernel: [22669.006863]  [] 
intel_prepare_reset+0x6a/0x80 [i915]
Oct 31 18:25:16 gandalf kernel: [22669.006912]  [] 
i915_handle_error+0x147/0x6e0 [i915]
Oct 31 18:25:16 gandalf kernel: [22669.006924]  [] ? 
log_store+0x1cd/0x210
Oct 31 18:25:16 gandalf kernel: 

[Ubuntu-x-swat] [Bug 1507255] Re: Garbled graphics in Wily with Intel GMA4500 chip

[Alberto Salvia Novella]

** Changed in: xserver-xorg-video-intel (Ubuntu)
   Importance: Undecided => Critical

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Title:
  Garbled graphics in Wily with Intel GMA4500 chip

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[Ubuntu-x-swat] [Bug 1507255] Re: Garbled graphics in Wily with Intel GMA4500 chip

[jerrylamos]

How do I tell if this Lenovo M58p has the Intel GMA4500 chip?
Wily gives me fits with hashing.  Can't read text even.
Xenial slightly better.  Text sent out by Ubuntu is totally hashed.  Text I 
type in on the terminal window is readable.  Wallpaper and images are hashed 
unintelligible.

Current workaround, this is Xenial with 3.17.8031708 installed from Ubuntu 
Kernels:
DISTRIB_RELEASE=15.10
DISTRIB_CODENAME=wily
DISTRIB_DESCRIPTION="Ubuntu 15.10"
Linux Lenovo2 3.17.8-031708-generic #201501081837 SMP Thu Jan 8 18:39:03 UTC 
2015 x86_64 x86_64 x86_64 GNU/Linux
model name  : Intel(R) Core(TM)2 Duo CPU E8400  @ 3.00GHz
model name  : Intel(R) Core(TM)2 Duo CPU E8400  @ 3.00GHz
00:02.0 VGA compatible controller: Intel Corporation 4 Series Chipset 
Integrated Graphics Controller (rev 03)

ls /boot:
abi-3.17.1-031701-generic grub  memtest86+.elf  
  vmlinuz-3.17.1-031701-generic
abi-4.2.0-16-generic  initrd.img-3.17.1-031701-generic  
memtest86+_multiboot.bin  vmlinuz-4.2.0-16-generic
config-3.17.1-031701-generic  initrd.img-4.2.0-16-generic   
System.map-3.17.1-031701-generic
config-4.2.0-16-generic   memtest86+.bin
System.map-4.2.0-16-generic

The 4.1.0-16 is totally unusable.
Oddly  uname-a reports
Linux Lenovo2 3.17.8-031708-generic #201501081837 SMP Thu Jan 8 18:39:03 UTC 
2015 x86_64 x86_64 x86_64 GNU/Linux
which doesn't seem to match ls /boot?  And doesn't match the .deb:
linux-image-3.17.1-031701-generic_3.17.1-031701.201410150735_amd64.deb
 
Anyway, it works, just I'm not testing Xenial..   I've Acer and HP laptops 
running Wily fine.  Will try Xenial on them time permitting.

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Title:
  Garbled graphics in Wily with Intel GMA4500 chip

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[Ubuntu-x-swat] [Bug 1507255] Re: Garbled graphics in Wily with Intel GMA4500 chip

[Cory Davis]

This bug also affects me:

cory@lala:~$ lspci -v -s `lspci | awk '/VGA/{print $1}'`
00:02.0 VGA compatible controller: Intel Corporation 82Q963/Q965 Integrated 
Graphics Controller (rev 02) (prog-if 00 [VGA controller])
Subsystem: Lenovo Device 1010
Flags: bus master, fast devsel, latency 0, IRQ 26
Memory at d000 (32-bit, non-prefetchable) [size=1M]
Memory at c000 (64-bit, prefetchable) [size=256M]
I/O ports at 3400 [size=8]
Expansion ROM at  [disabled]
Capabilities: 
Kernel driver in use: i915

The switching from "sna" to "uxa" works as a temporary workaround for
me:

cory@lala:~$ cat /usr/share/X11/xorg.conf.d/20-intel.conf
Section "Device"
   Identifier  "Intel Graphics"
   Driver  "intel"
   Option   "AccelMethod" "uxa"
EndSection

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Title:
  Garbled graphics in Wily with Intel GMA4500 chip

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[Ubuntu-x-swat] [Bug 1507255] Re: Garbled graphics in Wily with Intel GMA4500 chip

[Launchpad Bug Tracker]

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

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

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[Ubuntu-x-swat] [Bug 1507255] Re: Garbled graphics in Wily with Intel GMA4500 chip

[Erick Brunzell]

I incorrectly staed above:

"The graphics are so badly garbled I can only file this bug on an
unaffected OS where I've held back the update on just that one package
to about Alpha 2 status"

That should have said "Beta 1 status" so I'll correct that accordingly.

** Description changed:

  This affects both Ubuntu GNOME and Ubuntu Wily 20151017.1. The graphics
  are so badly garbled I can only file this bug on an unaffected OS where
- I've held back the update on just that one package to about Alpha 2
+ I've held back the update on just that one package to about Beta 1
  status:
  
  lance@lance-INTEL-desktop:~$ apt-cache policy xserver-xorg-video-intel
  xserver-xorg-video-intel:
-   Installed: 2:2.99.917-1ubuntu1
-   Candidate: 2:2.99.917+git20150808-0ubuntu4
-   Version table:
-  2:2.99.917+git20150808-0ubuntu4 0
- 500 http://us.archive.ubuntu.com/ubuntu/ wily/main i386 Packages
-  *** 2:2.99.917-1ubuntu1 0
- 100 /var/lib/dpkg/status
+   Installed: 2:2.99.917-1ubuntu1
+   Candidate: 2:2.99.917+git20150808-0ubuntu4
+   Version table:
+  2:2.99.917+git20150808-0ubuntu4 0
+ 500 http://us.archive.ubuntu.com/ubuntu/ wily/main i386 Packages
+  *** 2:2.99.917-1ubuntu1 0
+ 100 /var/lib/dpkg/status
  
  I'll attach a picture of the garbled screen with the updated xserver-
  xorg-video-intel package. Oddly a screenshot taken from the affected OS
  displays perfectly OK in the unaffected OS so I used my camera.
  
  The info provided by lspci may not be very helpful:
  
  lance@lance-INTEL-desktop:~$ lspci -v -s `lspci | awk '/VGA/{print $1}'`
  00:02.0 VGA compatible controller: Intel Corporation 4 Series Chipset 
Integrated Graphics Controller (rev 03) (prog-if 00 [VGA controller])
-   Subsystem: Intel Corporation Device 0025
-   Flags: bus master, fast devsel, latency 0, IRQ 27
-   Memory at d000 (64-bit, non-prefetchable) [size=4M]
-   Memory at c000 (64-bit, prefetchable) [size=256M]
-   I/O ports at f1c0 [size=8]
-   Expansion ROM at  [disabled]
-   Capabilities: 
-   Kernel driver in use: i915
+  Subsystem: Intel Corporation Device 0025
+  Flags: bus master, fast devsel, latency 0, IRQ 27
+  Memory at d000 (64-bit, non-prefetchable) [size=4M]
+  Memory at c000 (64-bit, prefetchable) [size=256M]
+  I/O ports at f1c0 [size=8]
+  Expansion ROM at  [disabled]
+  Capabilities: 
+  Kernel driver in use: i915
  
  The tech specs show:
  
  Internal Graphics:
  • Intel ® GMA4500 onboard graphics subsystem with support for:
  ― Analog displays (VGA)
  ― Digital displays (DVI-D)
  
  I'm just using VGA ATM.
  
  Something else worth mentioning is this warning displayed while filing
  the bug report:
  
  Your system is providing 3D via software rendering rather than hardware
  rendering.  This is a compatibility mode which should display 3D
  graphics properly but the performance may be very poor.  If the problem
  you're reporting is related to graphics performance, your real question
  may be why X didn't use hardware acceleration for your system.
  
  I did try booting an earlier kernel to no avail, but holding back just
  this one update prevents the borkage.
  
  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: xserver-xorg-video-intel 2:2.99.917-1ubuntu1
  ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3
  Uname: Linux 4.2.0-16-generic i686
  ApportVersion: 2.19.1-0ubuntu2
  Architecture: i386
  CompizPlugins: No value set for 
`/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: None
  CurrentDesktop: GNOME
  Date: Sun Oct 18 00:17:35 2015
  DistUpgraded: Fresh install
  DistroCodename: wily
  DistroVariant: ubuntu
  ExtraDebuggingInterest: Yes, if not too technical
  GraphicsCard:
-  Intel Corporation 4 Series Chipset Integrated Graphics Controller 
[8086:2e42] (rev 03) (prog-if 00 [VGA controller])
-Subsystem: Intel Corporation Device [8086:0025]
-Subsystem: Intel Corporation Device [8086:0025]
+  Intel Corporation 4 Series Chipset Integrated Graphics Controller 
[8086:2e42] (rev 03) (prog-if 00 [VGA controller])
+    Subsystem: Intel Corporation Device [8086:0025]
+    Subsystem: Intel Corporation Device [8086:0025]
  InstallationDate: Installed on 2015-08-26 (52 days ago)
  InstallationMedia: Ubuntu-GNOME 15.10 "Wily Werewolf" - Alpha i386 
(20150826.1)
  ProcEnviron:
-  TERM=xterm-256color
-  PATH=(custom, no user)
-  XDG_RUNTIME_DIR=
-  LANG=en_US.UTF-8
-  SHELL=/bin/bash
+  TERM=xterm-256color
+  PATH=(custom, no user)
+  XDG_RUNTIME_DIR=
+  LANG=en_US.UTF-8
+  SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-16-generic 
root=UUID=39597a1e-90b6-4e81-ae29-4c01d28f7f17 ro quiet splash vt.handoff=7
  Renderer: Software
  SourcePackage: xserver-xorg-video-intel
  UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 12/23/2010
  dmi.bios.vendor: Intel Corp.
  

[Ubuntu-x-swat] [Bug 1507255] Re: Garbled graphics in Wily with Intel GMA4500 chip

[Ubuntu QA Website]

This bug has been reported on the Ubuntu ISO testing tracker.

A list of all reports related to this bug can be found here:
http://iso.qa.ubuntu.com/qatracker/reports/bugs/1507255

** Tags added: iso-testing

-- 
You received this bug notification because you are a member of Ubuntu-X,
which is subscribed to xserver-xorg-video-intel in Ubuntu.
https://bugs.launchpad.net/bugs/1507255

Title:
  Garbled graphics in Wily with Intel GMA4500 chip

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