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["Ian! D. Allen" <idallen@xxxxxxxxxx>]

This just started happening to me in Ubuntu 15.04 with Firefox 42.0, but
only if I run Firefox under the old vtwm window manager:

Firefox 42.0 "Mozilla Firefox for Ubuntu" canonical - 1.0 under Ubuntu
15.04.

The browser now (in the past week or two) locks up when requested to
enter Full Screen if not running under any window manager (or when
running under an old window manager such as vtwm that doesn't have all
the modern hooks).

Reproduce:

1. Start up Ubuntu 15.04 with the full Unity desktop installed.
2. Clean out (remove or rename) $HOME/.mozilla to start clean.
3. Open Firefox.
4. Note that using F11 correctly resizes Firefox to Full Screen and back down.
5. Kill the window manager: run: initctl stop unity7
6. Return to Firefox and try F11 or turn on "Full Screen" from the menu.
7. Browser locks up.

Changing tabs doesn't refresh the screen unless you do something to
trigger an X11 refresh such as opening a menu.  F11 does *not* undo the
damage - the browser stays locked up.  Using the Firefox menu to disable
(un-check) "Full Screen" also does nothing.  Nothing works.

8. Start an old window manager such as "vtwm".  No change.  Firefox is
still locked up.
9. Exit vtwm.
10. Re-start the Unity window manager: run: initctl start unity7
11. Return to Firefox and use F11 or the menu "Full Screen" a few times and Firefox is working again.
12. Repeat as needed. 

** Summary changed:

- Firefox Screen Freeze
+ Firefox Screen Freeze in Full Screen mode

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to firefox in Ubuntu.
https://bugs.launchpad.net/bugs/1002453

Title:
  Firefox Screen Freeze in Full Screen mode

Status in firefox package in Ubuntu:
  Confirmed

Bug description:
  Ubuntu 12.04.

  Firefox freezes when I enter full screen mode. By freeze, I *do not*
  mean that it locks up. I can't think of another word to use. What
  happens is that anything below the top bar becomes unreadable.

  For example, after a period of time in full screen, if I were to go
  and begin typing a web address, what usually would come down in a drop
  menu of recent websites doesn't appear. Also, if I am scrolling down a
  website, it doesn't register. This is the case until I put the mouse
  at the top of the screen to bring down the top bar, and at this time
  the new website will register on the screen.

  Apologies if this doesn't make enough sense.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: firefox 12.0+build1-0ubuntu0.12.04.1
  ProcVersionSignature: Ubuntu 3.2.0-24.37-generic 3.2.14
  Uname: Linux 3.2.0-24-generic x86_64
  AddonCompatCheckDisabled: False
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 2.0.1-0ubuntu7
  Architecture: amd64
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: Intel [HDA Intel], device 0: ALC269VB Analog [ALC269VB Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  dalton     1866 F.... pulseaudio
   /dev/snd/pcmC0D0p:   dalton     1866 F...m pulseaudio
  BuildID: 20120423122928
  Card0.Amixer.info:
   Card hw:0 'Intel'/'HDA Intel at 0xf5400000 irq 53'
     Mixer name	: 'Intel IbexPeak HDMI'
     Components	: 'HDA:10ec0269,10431213,00100100 HDA:80862804,10431213,00100000'
     Controls      : 26
     Simple ctrls  : 12
  Channel: release
  Date: Mon May 21 15:06:08 2012
  ForcedLayersAccel: False
  IfupdownConfig:
   auto lo
   iface lo inet loopback
  InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
  IpRoute:
   default via 192.168.1.1 dev wlan0  proto static 
   169.254.0.0/16 dev wlan0  scope link  metric 1000 
   192.168.1.0/24 dev wlan0  proto kernel  scope link  src 192.168.1.3  metric 2
  Profiles: Profile0 (Default) - LastVersion=12.0/20120423122928 (Running)
  RfKill:
   0: phy0: Wireless LAN
   	Soft blocked: no
   	Hard blocked: no
  RunningIncompatibleAddons: False
  SourcePackage: firefox
  UpgradeStatus: Upgraded to precise on 2012-05-18 (3 days ago)
  dmi.bios.date: 07/01/2010
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 213
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: U43
  dmi.board.vendor: PEGATRON CORPORATION
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: PEGATRON Computer Inc.
  dmi.chassis.version: 1.0
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr213:bd07/01/2010:svnASUSTeKComputerInc.:pnU43F:pvr1.0:rvnPEGATRONCORPORATION:rnU43:rvr1.0:cvnPEGATRONComputerInc.:ct10:cvr1.0:
  dmi.product.name: U43F
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK Computer Inc.

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