[Bug 1044621] [NEW] Bad inactive tab corner appearance on hover in Thunderbird 15 with Ambiance

Christopher Kyle Horton 1044621 at bugs.launchpad.net
Sat Sep 1 03:58:54 UTC 2012


Public bug reported:

After upgrading to Thunderbird 15 (with the new tabs style) on my Ubuntu
12.04 LTS desktop today, I noticed that if you hover over the inactive
tabs and the default Ambiance theme is set, there is a distinct vertical
border which appears between the center of the tabs and the corners,
instead of a smooth and continuous look. The active tab and tabs which
are not hovered over are not affected.

See attached screenshot for an example of how this looks.

Steps to reproduce:
1.) Open Thunderbird, and open multiple tabs (2 or more is fine). Make sure your current theme is Ambiance.
2.) Hover the mouse cursor over any tab other than the currently selected tab

My machine is running a fully up-to-date Ubuntu 12.04 LTS 64-bit, with
thunderbird 15.0+build1-0ubuntu0.12.04.1 and the default Ambiance theme.
AFAICT this does not occur with Radiance.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: thunderbird 15.0+build1-0ubuntu0.12.04.1
ProcVersionSignature: Ubuntu 3.2.0-29.46-generic 3.2.24
Uname: Linux 3.2.0-29-generic x86_64
AddonCompatCheckDisabled: False
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu12
Architecture: amd64
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  christopher   2034 F.... pulseaudio
 /dev/snd/controlC1:  christopher   2034 F.... pulseaudio
BuildID: 20120827103657
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'NVidia'/'HDA NVidia at 0xfe028000 irq 22'
   Mixer name	: 'Realtek ALC883'
   Components	: 'HDA:10ec0883,1458c601,00100002'
   Controls      : 45
   Simple ctrls  : 22
Card1.Amixer.info:
 Card hw:1 'U0x46d0x802'/'USB Device 0x46d:0x802 at usb-0000:00:02.1-4, high speed'
   Mixer name	: 'USB Mixer'
   Components	: 'USB046d:0802'
   Controls      : 2
   Simple ctrls  : 1
Card1.Amixer.values:
 Simple mixer control 'Mic',0
   Capabilities: cvolume cvolume-joined cswitch cswitch-joined penum
   Capture channels: Mono
   Limits: Capture 0 - 6144
   Mono: Capture 6144 [100%] [30.00dB] [on]
Channel: Unavailable
Date: Fri Aug 31 23:56:08 2012
ForcedLayersAccel: False
IfupdownConfig:
 auto lo
 iface lo inet loopback
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha amd64 (20111129.1)
IpRoute:
 default via 67.194.184.1 dev eth0  proto static 
 67.194.184.0/23 dev eth0  proto kernel  scope link  src 67.194.184.17  metric 1 
 169.254.0.0/16 dev eth0  scope link  metric 1000
MostRecentCrashID: bp-69e595f8-f684-444b-ba96-3b46c2120202
Prefs:
 extensions.lastAppVersion: "15.0" (prefs.js)
 network.cookie.prefsMigrated: true (prefs.js)
 places.database.lastMaintenance: 1346470320 (prefs.js)
 places.history.expiration.transient_current_max_pages: 97076 (prefs.js)
 places.history.expiration.transient_optimal_database_size: 155323924 (prefs.js)
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
Profiles: Profile0 (Default) - LastVersion=15.0/20120827103657
RelatedPackageVersions:
 google-talkplugin 3.5.1.0-1
 rhythmbox-mozilla 2.96-0ubuntu4.1
 gnome-shell       3.4.1-0ubuntu2
 totem-mozilla     3.0.1-0ubuntu21
RfKill:
 0: phy0: Wireless LAN
 	Soft blocked: no
 	Hard blocked: no
RunningIncompatibleAddons: False
SourcePackage: thunderbird
SubmittedCrashIDs: bp-69e595f8-f684-444b-ba96-3b46c2120202
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 11/03/2009
dmi.bios.vendor: Award Software International, Inc.
dmi.bios.version: F6
dmi.board.name: M61PME-S2P
dmi.board.vendor: Gigabyte Technology Co., Ltd.
dmi.board.version: x.x
dmi.chassis.type: 3
dmi.chassis.vendor: Gigabyte Technology Co., Ltd.
dmi.modalias: dmi:bvnAwardSoftwareInternational,Inc.:bvrF6:bd11/03/2009:svnGigabyteTechnologyCo.,Ltd.:pnM61PME-S2P:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnM61PME-S2P:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr:
dmi.product.name: M61PME-S2P
dmi.sys.vendor: Gigabyte Technology Co., Ltd.

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


** Tags: amd64 apport-bug precise running-unity

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https://bugs.launchpad.net/bugs/1044621

Title:
  Bad inactive tab corner appearance on hover in Thunderbird 15 with
  Ambiance

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