[Bug 1577330] [NEW] Copy from firefox to another X display corrupted

[tavasti]

Public bug reported:

I have dual screen configuration without xinerama. All copy operations from firefox to another display fail. 
Both plain 'paint with mouse, paste with second key' or Ctrl-c copying. Urls from address line and text.

Steps to reproduce:

- Start with dual-head config, xinerama disabled
- Start firefox on display 0.0
- Copy something there
- in terminal in display 0.0, 'xclip -o' works fine
- in terminal in display 0.1, 'xclip -o'  is jammed
- paste won't do anything on display 0.1

Same applies also copying from 0.1 to 0.0. I see this happening only
with firefox, other programs work ok.

Extra-annoying this is with synergy: any copy done in firefox on 'wrong
display' -> synergy moving to another display takes roughly 4 seconds.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: firefox 46.0+build5-0ubuntu0.14.04.2
ProcVersionSignature: Ubuntu 3.13.0-85.129-lowlatency 3.13.11-ckt36
Uname: Linux 3.13.0-85-lowlatency x86_64
NonfreeKernelModules: nvidia
AddonCompatCheckDisabled: False
ApportVersion: 2.14.1-0ubuntu3.19
Architecture: amd64
BuildID: 20160425115534
Channel: Unavailable
CurrentDesktop: XFCE
Date: Mon May  2 11:50:01 2016
DefaultProfileIncompatibleExtensions:
 English (GB) Language Pack - langpack-en-GB at firefox.mozilla.org
 English (South Africa) Language Pack - langpack-en-ZA at firefox.mozilla.org
 Default - {972ce4c6-7e08-4474-a285-3208198ce6fd}
DefaultProfilePrefSources: prefs.js
ForcedLayersAccel: False
IpRoute:
 default via 10.0.0.253 dev eth0 
 10.0.0.0/24 dev eth0  proto kernel  scope link  src 10.0.0.234 
 169.254.0.0/16 dev eth0  scope link  metric 1000 
 192.168.122.0/24 dev virbr0  proto kernel  scope link  src 192.168.122.1 
 192.168.255.0/24 via 10.0.0.252 dev eth0
IwConfig:
 eth0      no wireless extensions.
 
 lo        no wireless extensions.
 
 virbr0    no wireless extensions.
MostRecentCrashID: bp-3d668db3-672b-4593-af67-b07f62151205
Profile0IncompatibleExtensions:
 English (GB) Language Pack - langpack-en-GB at firefox.mozilla.org
 English (South Africa) Language Pack - langpack-en-ZA at firefox.mozilla.org
 Default - {972ce4c6-7e08-4474-a285-3208198ce6fd}
Profile0PrefSources:
 prefs.js
 [Profile]/extensions/{3d7eb24f-2740-49df-8937-200b1cc08f8a}/defaults/preferences/flashblock.js
Profile1IncompatibleExtensions:
 English (GB) Language Pack - langpack-en-GB at firefox.mozilla.org
 English (South Africa) Language Pack - langpack-en-ZA at firefox.mozilla.org
 Default - {972ce4c6-7e08-4474-a285-3208198ce6fd}
Profile1PrefSources:
 prefs.js
 [Profile]/extensions/{3d7eb24f-2740-49df-8937-200b1cc08f8a}/defaults/preferences/flashblock.js
Profile3IncompatibleExtensions:
 English (GB) Language Pack - langpack-en-GB at firefox.mozilla.org
 English (South Africa) Language Pack - langpack-en-ZA at firefox.mozilla.org
 Default - {972ce4c6-7e08-4474-a285-3208198ce6fd}
Profile3PrefSources: prefs.js
Profile4Extensions: extensions.sqlite corrupt or missing
Profile4IncompatibleExtensions: Unavailable (corrupt or non-existant compatibility.ini or extensions.sqlite)
Profile4Locales: extensions.sqlite corrupt or missing
Profile4PrefSources: prefs.js
Profile4Themes: extensions.sqlite corrupt or missing
Profile5Extensions: extensions.sqlite corrupt or missing
Profile5IncompatibleExtensions: Unavailable (corrupt or non-existant compatibility.ini or extensions.sqlite)
Profile5Locales: extensions.sqlite corrupt or missing
Profile5PrefSources: prefs.js
Profile5Themes: extensions.sqlite corrupt or missing
Profile6Extensions: extensions.sqlite corrupt or missing
Profile6IncompatibleExtensions: Unavailable (corrupt or non-existant compatibility.ini or extensions.sqlite)
Profile6Locales: extensions.sqlite corrupt or missing
Profile6PrefSources: prefs.js
Profile6Themes: extensions.sqlite corrupt or missing
RelatedPackageVersions: totem-mozilla 3.10.1-1ubuntu4
RfKill:
 
RunningIncompatibleAddons: True
SourcePackage: firefox
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 02/21/2011
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: P1.40
dmi.board.name: H67DE3
dmi.board.vendor: ASRock
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: To Be Filled By O.E.M.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP1.40:bd02/21/2011:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnH67DE3:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
dmi.product.name: To Be Filled By O.E.M.
dmi.product.version: To Be Filled By O.E.M.
dmi.sys.vendor: To Be Filled By O.E.M.

** Affects: firefox (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug third-party-packages trusty

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Title:
  Copy from firefox to another X display corrupted

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