Update: my current workaround is now to remove xserver-xorg-video-intel,
and instead use the built in modesetting driver. So far, I've had no
issues, and acceleration works fine.
On May 4, 2016 05:15, "Ibrahim Awwal" <email address hidden> wrote:

> I tried setting COGL_ATLAS_DEFAULT_BLIT_MODE to framebuffer and
> performance seems to become poorer and I start having glitches when
> changing workspaces (in Awesome window manager). Not sure if that's a
> satisfactory workaround.
>
> Interestingly there are reports for similar issues dating back to 14.04
> but I never had this problem until now with 16.04.
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1573959
>
> Title:
>   On-screen text disappears after suspend
>
> Status in xserver-xorg-video-intel package in Ubuntu:
>   Confirmed
>
> Bug description:
>   After resuming from a suspend, almost all text on screen is not
>   visible.  This includes menu items, text in all three boxes (list of
>   folders, list of e-mails, e-mail body) in Thunderbird (with the
>   curious exception of "ffl" in the File menu), top menu in Chromium
>   (but not the menu obtained by pressing the hamburger button), and the
>   menus produced by clicking items in the system tray.  Also, the apport
>   dialog had no text except for a few capital letters.
>
>   ADDITIONAL INFORMATION:
>   * initctl restart unity-panel-service restarts the panel, but the text
> is still missing
>   * suspend and resume does not fix the issue
>   * Logging out fixes the issue
>   * Other affected applications:
>   ** Chromium file select dialog
>   ** Terminal (entire window)
>   ** ttys 1-6 (Ctrl+Alt+F1, etc.)
>   ** Document viewer (menus)
>   ** Software Updater
>   ** Rhythmbox
>   ** The dialog that appears when you take a screenshot with Ctrl+Alt+PrtSc
>   ** ubuntu-bug
>   ** Nautilus
>   ** LibreOffice Calc (spreadsheet text contents)
>   ** Firefox
>   * Unity dash is not affected.
>   * Skype is not affected.
>   * Mousing over a button in a dialog correctly shows the text.
>
>   ProblemType: Bug
>   DistroRelease: Ubuntu 16.04
>   Package: unity 7.4.0+16.04.20160415-0ubuntu1
>   ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6
>   Uname: Linux 4.4.0-21-generic x86_64
>   .tmp.unity_support_test.0:
>
>   ApportVersion: 2.20.1-0ubuntu2
>   Architecture: amd64
>   BootLog:
>
>   CompizPlugins:
> [core,bailer,detection,composite,opengl,compiztoolbox,decor,gnomecompat,imgpng,place,move,resize,vpswitch,snap,regex,grid,mousepoll,unitymtgrabhandles,animation,session,wall,workarounds,expo,fade,ezoom,scale,unityshell]
>   CompositorRunning: compiz
>   CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
>   CompositorUnredirectFSW: true
>   CurrentDesktop: Unity
>   Date: Sat Apr 23 12:04:57 2016
>   DistUpgraded: 2016-04-22 09:22:44,147 DEBUG icon theme changed,
> re-reading
>   DistroCodename: xenial
>   DistroVariant: ubuntu
>   EcryptfsInUse: Yes
>   GraphicsCard:
>    Intel Corporation Haswell-ULT Integrated Graphics Controller
> [8086:0a16] (rev 09) (prog-if 00 [VGA controller])
>      Subsystem: COMPAL Electronics Inc Haswell-ULT Integrated Graphics
> Controller [14c0:0075]
>   InstallationDate: Installed on 2015-01-21 (457 days ago)
>   InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64
> (20140722.2)
>   MachineType: Compal VAW70
>   ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-21-generic
> root=UUID=8f4bd759-42d2-4828-8470-2aaf6fcb75ff ro quiet splash vt.handoff=7
>   SourcePackage: unity
>   UpgradeStatus: Upgraded to xenial on 2016-04-22 (1 days ago)
>   dmi.bios.date: 07/31/2013
>   dmi.bios.vendor: Insyde Corp.
>   dmi.bios.version: V1.01T01
>   dmi.board.asset.tag: Type2 - Board Asset Tag
>   dmi.board.name: Type2 - Board Product Name1
>   dmi.board.vendor: Compal
>   dmi.board.version: V1.01T01
>   dmi.chassis.asset.tag: Chassis Asset Tag
>   dmi.chassis.type: 10
>   dmi.chassis.vendor: Chassis Manufacturer
>   dmi.chassis.version: Chassis Version
>   dmi.modalias:
> dmi:bvnInsydeCorp.:bvrV1.01T01:bd07/31/2013:svnCompal:pnVAW70:pvrV1.01T01:rvnCompal:rnType2-BoardProductName1:rvrV1.01T01:cvnChassisManufacturer:ct10:cvrChassisVersion:
>   dmi.product.name: VAW70
>   dmi.product.version: V1.01T01
>   dmi.sys.vendor: Compal
>   upstart.unity-panel-service-lockscreen.log:
>    (unity-panel-service:14416): GLib-CRITICAL **: Source ID 4294967295 was
> not found when attempting to remove it
>
>    (unity-panel-service:26413): GLib-CRITICAL **: Source ID 4294967295 was
> not found when attempting to remove it
>   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: Fri Apr 22 09:26:06 2016
>   xserver.configfile: default
>   xserver.errors:
>
>   xserver.logfile: /var/log/Xorg.0.log
>   xserver.outputs:
>    product id                                1479
>    vendor                                     BOE
>   xserver.version: 2:1.18.3-1ubuntu2
>
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>
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>