** Description changed:

- Text in Unity windows becomes a total mess after suspending and waking
- up Ubuntu 16.04. Text content in most of system and native windows are
- scrambled including terminal, nautilus, native apps EXCEPT Java apps
- (browsers and LibreOffice work fine). I had this issue multiple times,
- but it is not always reproducible.
+ What happens in Ubuntu 16.04 is that in Unity the text of windows are
+ scrambled including terminal, nautilus. Java apps aren't affected
+ (browsers and LibreOffice).
  
- This bug occurs in linux-image-generic 4.4.0.53. It does not appear with 
linux-image-extra-4.4.0-51-generic 4.4.0-51.72 amd64.
- --- 
+ This happens typically when resuming from suspend via GUI or closing and
+ reopening the lid. It happens after ~1 of 20 wakeups. The probability
+ seems to be higher when there are more opened windows and external
+ monitor is plugging. In fact, the last 2 issues appeared on plugging the
+ external monitor after the sleep mode. However the bug sometimes (about
+ twice during 4 months) reproduced even on pure laptop without any
+ external devices plugged in.
+ 
+ This bug occurs in linux-image-generic 4.4.0.53. It does not appear with
+ linux-image-extra-4.4.0-51-generic 4.4.0-51.72 amd64.
+ 
+ ---
  ApportVersion: 2.20.1-0ubuntu2.4
  Architecture: amd64
  AudioDevicesInUse:
-  USER        PID ACCESS COMMAND
-  /dev/snd/controlC1:  lav        2950 F.... pulseaudio
-  /dev/snd/controlC0:  lav        2950 F.... pulseaudio
+  USER        PID ACCESS COMMAND
+  /dev/snd/controlC1:  lav        2950 F.... pulseaudio
+  /dev/snd/controlC0:  lav        2950 F.... pulseaudio
  CurrentDesktop: Unity
  DistroRelease: Ubuntu 16.04
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2014-10-25 (801 days ago)
  InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 
(20140722.2)
  MachineType: LENOVO 20A8S28400
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-57-generic 
root=UUID=daa4b3a5-47b3-4c16-a1de-2dde0c540c4a ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 4.4.0-57.78-generic 4.4.35
  RelatedPackageVersions:
-  linux-restricted-modules-4.4.0-57-generic N/A
-  linux-backports-modules-4.4.0-57-generic  N/A
-  linux-firmware                            1.157.6
+  linux-restricted-modules-4.4.0-57-generic N/A
+  linux-backports-modules-4.4.0-57-generic  N/A
+  linux-firmware                            1.157.6
  Tags:  xenial
  Uname: Linux 4.4.0-57-generic x86_64
  UpgradeStatus: Upgraded to xenial on 2016-09-11 (114 days ago)
  UserGroups: adm cdrom dip docker libvirtd lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 06/06/2014
  dmi.bios.vendor: LENOVO
  dmi.bios.version: GRET39WW (1.16 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 20A8S28400
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Defined
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: 
dmi:bvnLENOVO:bvrGRET39WW(1.16):bd06/06/2014:svnLENOVO:pn20A8S28400:pvrThinkPadX1Carbon2nd:rvnLENOVO:rn20A8S28400:rvrNotDefined:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 20A8S28400
  dmi.product.version: ThinkPad X1 Carbon 2nd
  dmi.sys.vendor: LENOVO

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https://bugs.launchpad.net/bugs/1651520

Title:
  Scrambled UI: Text in the Unity windows disappears/mixed after the
  resume from the screen idle state

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