Public bug reported:

Hardware: Asus Zenbook UX21e
Software: Ubuntu 12.04 LTS

This issue have begun from booting LiveCD - I've dowloaded iso, burned
it and loaded using external CD drive: screen was blinking couple times
during boot. However, after booting system seems stable, so during
installation wasn't any problems at all.

After first boot into installed system I've noticed the following behavior:
 - display is blinking couple times during boot
 - display is blinking couple times on lightdm login screen
 - after login display also is blinking couple times, buf after this system 
looks like usable and stable

The symptoms above is repeating each time on boot now, but *SOMETIMES* display 
becomes totaly blank after blinking - it may be blank:
 - during boot
 - after boot, but before lightdm screen shows up (I can hear logon screen 
sound when display is blank already)
 - after login - I've entered login/password, desktop shows up, display is 
blanking, and then display is never showing up again
 - if i run 'xrandr' from terminal, then screen is blinking (probably, when 
tries to detect supported resolutions) one time just as during boot

Some additional information:
 - all currrent updates is installed
 - screen is not black/turned off - it's *blank* (i can see LED light for 
screen)
 - I've tried another kernels from Kernel Mainline PPA 
(http://kernel.ubuntu.com/~kernel-ppa/mainline/ : I've tested 'daily', 
'drm-intel-fixes' and 'drm-intel-next' - no any success at all; behavior is the 
same)
 - I've tried another xorg-related packages from XOrg Edgers PPA - behavior is 
still the same
 - I can't see TTYs, if screen goes blank during/after boot - I can switch to 
TTY 'in blind': ctrl+alt+f2, and it works, for example: type login/password, 
run 'sudo reboot', type password; but on TTY screen is also blank
 - switching to TTY's after booting and login in with 'working' screen may 
cause screen to blank it

Non-working workarounds 
(https://wiki.ubuntu.com/X/Troubleshooting/BlankScreen#How_It_Works):
 - I've tried to remove 'quite splash' from 'linux' line in grub config (by 
editing /etc/default/grub and doing sudo update-grub)
 - I've tried to add 'set gfxpayload=text' option in menu entry on boot using 
grub

Working workaround:
 - add 'nomodeset' to 'linux' line in grub config: after this no any issues 
described above, system is booting stable, but, obviously, user has lost 
additional graphics hardware acceleration and features 
(unity-3d/compiz/compositing/etc), and that's very sad.

Similar bugs - although I can't google exactly the same issue, but looks like 
that the following bug may be related to my issue:
 - 
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/681054?comments=all

I will be very appreciate for any confirmations; also I would like to help by 
testing/providing necessary logs for fix this issue as soon as possible.
--- 
.tmp.unity.support.test.1:
 
ApportVersion: 2.0.1-0ubuntu7
Architecture: amd64
CompizPlugins: 
[core,composite,opengl,compiztoolbox,decor,vpswitch,snap,mousepoll,resize,place,move,wall,grid,regex,imgpng,session,gnomecompat,animation,fade,unitymtgrabhandles,workarounds,scale,expo,ezoom,unityshell]
CompositorRunning: None
DistUpgraded: Fresh install
DistroCodename: precise
DistroRelease: Ubuntu 12.04
DistroVariant: ubuntu
ExtraDebuggingInterest: No
GraphicsCard:
 Intel Corporation 2nd Generation Core Processor Family Integrated Graphics 
Controller [8086:0116] (rev 09) (prog-if 00 [VGA controller])
   Subsystem: ASUSTeK Computer Inc. Device [1043:1417]
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 
(20120425)
MachineType: ASUSTeK Computer Inc. UX21E
Package: xserver-xorg-video-intel 2:2.18.0+git20120416.a1661620-0ubuntu0sarvatt 
[origin: LP-PPA-xorg-edgers]
PackageArchitecture: amd64
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.4.0-999-generic 
root=UUID=fe676054-057c-445a-bffa-c42edb651348 ro nomodeset
Tags: precise third-party-packages ubuntu regression-update needs-reassignment
Uname: Linux 3.4.0-999-generic x86_64
UnreportableReason: This is not an official Ubuntu package. Please remove any 
third party package and try again.
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm lpadmin sambashare sudo users
dmi.bios.date: 09/30/2011
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: UX21E.205
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: UX21E
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.:bvrUX21E.205:bd09/30/2011:svnASUSTeKComputerInc.:pnUX21E:pvr1.0:rvnASUSTeKComputerInc.:rnUX21E:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
dmi.product.name: UX21E
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK Computer Inc.
version.compiz: compiz 1:0.9.7.8-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.33+git20120403.43704256-0ubuntu0ricotz
version.libgl1-mesa-dri: libgl1-mesa-dri 
8.0.2+git20120429+8.0.e995b41a-0ubuntu0sarvatt
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 
8.0.2+git20120429+8.0.e995b41a-0ubuntu0sarvatt
version.xserver-xorg-core: xserver-xorg-core 
2:1.12.1+git20120428+server-1.12-branch.9ef48c9f-0ubuntu0ricotz~precise
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 
1:2.7.0+git20120328.99340147-0ubuntu0sarvatt
version.xserver-xorg-video-ati: xserver-xorg-video-ati 
1:6.14.99+git20120412.d282719a-0ubuntu0sarvatt
version.xserver-xorg-video-intel: xserver-xorg-video-intel 
2:2.18.0+git20120416.a1661620-0ubuntu0sarvatt
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 
1:0.0.16+git20120328.ab7291d3-0ubuntu0sarvatt

** Affects: xserver-xorg-video-intel (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-collected asus gma intel lts needs-reassignment precise 
regression-update screen third-party-packages ubuntu

** Tags added: apport-collected needs-reassignment precise regression-
update third-party-packages ubuntu

** Description changed:

  Hardware: Asus Zenbook UX21e
  Software: Ubuntu 12.04 LTS
  
  This issue have begun from booting LiveCD - I've dowloaded iso, burned
  it and loaded using external CD drive: screen was blinking couple times
  during boot. However, after booting system seems stable, so during
  installation wasn't any problems at all.
  
  After first boot into installed system I've noticed the following behavior:
   - display is blinking couple times during boot
   - display is blinking couple times on lightdm login screen
   - after login display also is blinking couple times, buf after this system 
looks like usable and stable
  
  The symptoms above is repeating each time on boot now, but *SOMETIMES* 
display becomes totaly blank after blinking - it may be blank:
   - during boot
   - after boot, but before lightdm screen shows up (I can hear logon screen 
sound when display is blank already)
   - after login - I've entered login/password, desktop shows up, display is 
blanking, and then display is never showing up again
   - if i run 'xrandr' from terminal, then screen is blinking (probably, when 
tries to detect supported resolutions) one time just as during boot
  
  Some additional information:
   - all currrent updates is installed
   - screen is not black/turned off - it's *blank* (i can see LED light for 
screen)
   - I've tried another kernels from Kernel Mainline PPA 
(http://kernel.ubuntu.com/~kernel-ppa/mainline/ : I've tested 'daily', 
'drm-intel-fixes' and 'drm-intel-next' - no any success at all; behavior is the 
same)
   - I've tried another xorg-related packages from XOrg Edgers PPA - behavior 
is still the same
   - I can't see TTYs, if screen goes blank during/after boot - I can switch to 
TTY 'in blind': ctrl+alt+f2, and it works, for example: type login/password, 
run 'sudo reboot', type password; but on TTY screen is also blank
   - switching to TTY's after booting and login in with 'working' screen may 
cause screen to blank it
  
  Non-working workarounds 
(https://wiki.ubuntu.com/X/Troubleshooting/BlankScreen#How_It_Works):
   - I've tried to remove 'quite splash' from 'linux' line in grub config (by 
editing /etc/default/grub and doing sudo update-grub)
   - I've tried to add 'set gfxpayload=text' option in menu entry on boot using 
grub
  
  Working workaround:
   - add 'nomodeset' to 'linux' line in grub config: after this no any issues 
described above, system is booting stable, but, obviously, user has lost 
additional graphics hardware acceleration and features 
(unity-3d/compiz/compositing/etc), and that's very sad.
  
  Similar bugs - although I can't google exactly the same issue, but looks like 
that the following bug may be related to my issue:
   - 
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/681054?comments=all
  
- I will be very appreciate for any confirmations; also I would like to
- help by testing/providing necessary logs for fix this issue as soon as
- possible.
+ I will be very appreciate for any confirmations; also I would like to help by 
testing/providing necessary logs for fix this issue as soon as possible.
+ --- 
+ .tmp.unity.support.test.1:
+  
+ ApportVersion: 2.0.1-0ubuntu7
+ Architecture: amd64
+ CompizPlugins: 
[core,composite,opengl,compiztoolbox,decor,vpswitch,snap,mousepoll,resize,place,move,wall,grid,regex,imgpng,session,gnomecompat,animation,fade,unitymtgrabhandles,workarounds,scale,expo,ezoom,unityshell]
+ CompositorRunning: None
+ DistUpgraded: Fresh install
+ DistroCodename: precise
+ DistroRelease: Ubuntu 12.04
+ DistroVariant: ubuntu
+ ExtraDebuggingInterest: No
+ GraphicsCard:
+  Intel Corporation 2nd Generation Core Processor Family Integrated Graphics 
Controller [8086:0116] (rev 09) (prog-if 00 [VGA controller])
+    Subsystem: ASUSTeK Computer Inc. Device [1043:1417]
+ InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 
(20120425)
+ MachineType: ASUSTeK Computer Inc. UX21E
+ Package: xserver-xorg-video-intel 
2:2.18.0+git20120416.a1661620-0ubuntu0sarvatt [origin: LP-PPA-xorg-edgers]
+ PackageArchitecture: amd64
+ ProcEnviron:
+  TERM=xterm
+  PATH=(custom, no user)
+  LANG=en_US.UTF-8
+  SHELL=/bin/bash
+ ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.4.0-999-generic 
root=UUID=fe676054-057c-445a-bffa-c42edb651348 ro nomodeset
+ Tags: precise third-party-packages ubuntu regression-update needs-reassignment
+ Uname: Linux 3.4.0-999-generic x86_64
+ UnreportableReason: This is not an official Ubuntu package. Please remove any 
third party package and try again.
+ UpgradeStatus: No upgrade log present (probably fresh install)
+ UserGroups: adm lpadmin sambashare sudo users
+ dmi.bios.date: 09/30/2011
+ dmi.bios.vendor: American Megatrends Inc.
+ dmi.bios.version: UX21E.205
+ dmi.board.asset.tag: ATN12345678901234567
+ dmi.board.name: UX21E
+ 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.:bvrUX21E.205:bd09/30/2011:svnASUSTeKComputerInc.:pnUX21E:pvr1.0:rvnASUSTeKComputerInc.:rnUX21E:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
+ dmi.product.name: UX21E
+ dmi.product.version: 1.0
+ dmi.sys.vendor: ASUSTeK Computer Inc.
+ version.compiz: compiz 1:0.9.7.8-0ubuntu1
+ version.ia32-libs: ia32-libs N/A
+ version.libdrm2: libdrm2 2.4.33+git20120403.43704256-0ubuntu0ricotz
+ version.libgl1-mesa-dri: libgl1-mesa-dri 
8.0.2+git20120429+8.0.e995b41a-0ubuntu0sarvatt
+ version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
+ version.libgl1-mesa-glx: libgl1-mesa-glx 
8.0.2+git20120429+8.0.e995b41a-0ubuntu0sarvatt
+ version.xserver-xorg-core: xserver-xorg-core 
2:1.12.1+git20120428+server-1.12-branch.9ef48c9f-0ubuntu0ricotz~precise
+ version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 
1:2.7.0+git20120328.99340147-0ubuntu0sarvatt
+ version.xserver-xorg-video-ati: xserver-xorg-video-ati 
1:6.14.99+git20120412.d282719a-0ubuntu0sarvatt
+ version.xserver-xorg-video-intel: xserver-xorg-video-intel 
2:2.18.0+git20120416.a1661620-0ubuntu0sarvatt
+ version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 
1:0.0.16+git20120328.ab7291d3-0ubuntu0sarvatt

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https://bugs.launchpad.net/bugs/991902

Title:
  blinking blank screen after booting [asus zenbook ux21]

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