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[Bug 1432194] Re: Graphics unstable on Ubuntu 14.04 and 14.10 using Intel HD Graphics 5500

 

I think I'm affected by this bug as well. The relevant bits in dmesg:

[55632.090484] i915 0000:00:02.0: BAR 6: [??? 0x00000000 flags 0x2] has bogus alignment
[55632.090918] pci_bus 0000:01: Allocating resources
[55632.091041] pci_bus 0000:02: Allocating resources
[55632.091090] i915 0000:00:02.0: BAR 6: [??? 0x00000000 flags 0x2] has bogus alignment
[55632.093607] pci_bus 0000:01: Allocating resources
[55632.093746] pci_bus 0000:02: Allocating resources
[55632.093798] i915 0000:00:02.0: BAR 6: [??? 0x00000000 flags 0x2] has bogus alignment
[55632.093896] i915 0000:00:02.0: BAR 6: [??? 0x00000000 flags 0x2] has bogus alignment
[55632.094026] i915 0000:00:02.0: BAR 6: [??? 0x00000000 flags 0x2] has bogus alignment
[55632.094136] i915 0000:00:02.0: BAR 6: [??? 0x00000000 flags 0x2] has bogus alignment
[55632.094535] pci_bus 0000:01: Allocating resources
[55632.094660] pci_bus 0000:02: Allocating resources
[55632.094708] i915 0000:00:02.0: BAR 6: [??? 0x00000000 flags 0x2] has bogus alignment

This occurs whenever I wake my laptop from suspend. The fonts are
grossly distorted and unreadable. I've attached one example screenshot
(note: it's a HiDPI setup). I tried using a newer video driver from
ppa:oibaf/graphics-drivers (which fixed a suspend/resume issue), to no
avail.

I'm running on a DELL XPS13 9343 (2015).

$ sudo lshw -c video
  *-display               
       description: VGA compatible controller
       product: Broadwell-U Integrated Graphics
       vendor: Intel Corporation
       physical id: 2
       bus info: pci@0000:00:02.0
       version: 09
       width: 64 bits
       clock: 33MHz
       capabilities: msi pm vga_controller bus_master cap_list rom
       configuration: driver=i915 latency=0
       resources: irq:47 memory:f6000000-f6ffffff memory:e0000000-efffffff ioport:f000(size=64)

$ uname -a
Linux paperclip 3.19.0-17-generic #17-Ubuntu SMP Wed May 6 16:46:12 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

$ lsb_release -a
No LSB modules are available.
Distributor ID:	Ubuntu
Description:	Ubuntu 15.04
Release:	15.04
Codename:	vivid

$ apt-cache policy xserver-xorg-video-intel
xserver-xorg-video-intel:
  Installed: 2:2.99.917+git1505041932.5054e2~gd~v
  Candidate: 2:2.99.917+git1505041932.5054e2~gd~v
  Version table:
 *** 2:2.99.917+git1505041932.5054e2~gd~v 0
        500 http://ppa.launchpad.net/oibaf/graphics-drivers/ubuntu/ vivid/main amd64 Packages
        100 /var/lib/dpkg/status
     2:2.99.917-1~exp1ubuntu2.1 0
        500 http://archive.ubuntu.com/ubuntu/ vivid-updates/main amd64 Packages
     2:2.99.917-1~exp1ubuntu2build1 0
        500 http://archive.ubuntu.com/ubuntu/ vivid/main amd64 Packages

** Attachment added: "Screen/font corruption in software properties dialog"
   https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/1432194/+attachment/4398144/+files/d10E9y9.png

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https://bugs.launchpad.net/bugs/1432194

Title:
  Graphics unstable on Ubuntu 14.04 and 14.10 using Intel HD Graphics
  5500

Status in X.org xf86-video-intel:
  Unknown
Status in xserver-xorg-video-intel package in Ubuntu:
  Fix Released
Status in xserver-xorg-video-intel source package in Utopic:
  In Progress

Bug description:
  Trying to achieve: Get a more stable graphics environment up and
  running

  Steps to take:  basic ubtuntu 14.04 install.  Boot up and run for a
  few minutes and then ...

  What happens: After running for a few minutes the graphics gets
  flacky.

  What should happen:  Graphics should not get flaky.

  I have just installed ubuntu 14.04 on my new thinkpad t450s.
  Everything basically works, but something is very flaky about my
  keyboard or display or both.  After running for awhile some apps
  (E.g., thunderbird and sometimes emacs for example) will display
  garbage.  If I refresh by moving the screen around or changing
  buffers/tabs/etc. they can often recover.

  I see that there is an [Intel(R) Graphics Installer for Linux*
  1.0.7](https://01.org/linuxgraphics/downloads/2014/intelr-graphics-
  installer-linux-1.0.7). I am leery about just loading this and running
  it.  Any suggestions about how I should proceed?

      $ sudo lshw -c video
        *-display
             description: VGA compatible controller
             product: Broadwell-U Integrated Graphics
             vendor: Intel Corporation
             physical id: 2
             bus info: pci@0000:00:02.0
             version: 09
             width: 64 bits
             clock: 33MHz
             capabilities: msi pm vga_controller bus_master cap_list rom
             configuration: driver=i915 latency=0
             resources: irq:63 memory:e0000000-e0ffffff memory:d0000000-dfffffff ioport:3000(size=64)
      $ modinfo i915 | head
      filename:       /lib/modules/3.16.0-31-generic/kernel/drivers/gpu/drm/i915/i915.ko
      license:        GPL and additional rights
      description:    Intel Graphics
      author:         Tungsten Graphics, Inc.
      srcversion:     9929027A8A6F05972AD6986
      alias:          pci:v00008086d000022B3sv*sd*bc03sc*i*
      alias:          pci:v00008086d000022B2sv*sd*bc03sc*i*
      alias:          pci:v00008086d000022B1sv*sd*bc03sc*i*
      alias:          pci:v00008086d000022B0sv*sd*bc03sc*i*
      alias:          pci:v00008086d0000162Dsv*sd*bc03sc*i*
      $ uname -a
      Linux mypad 3.16.0-31-generic #43~14.04.1-Ubuntu SMP Tue Mar 10 20:13:38 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

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