Bug 1117817

Created attachment 916764 [details]
Output of lshw

Description of problem:

I'M running thunderbird-24.6.0-1.fc20.x86_64. Sometimes (rather often,
but not always) having problems with threads in thunderbird mail list subwindow: After opening a thread, all opened sublines are unvisible, until I move the mouse pointer over them (without click): then they will appear.

This happens both with ati and nvidia video cards.

See thread https://lists.fedoraproject.org/pipermail/users/2014-July/451632.html

Version-Release number of selected component (if applicable):
 For example kernel-3.15.4-200.fc20.x86_64

How reproducible:
Not always, but rather often

Steps to Reproduce:
1.see description
2.
3.

Actual results:
see description

Expected results:
Threads are immediately visible

Additional info:
1. It seems I could get rid by this effect, for example on a box with an nvidia gforce 210, by installing xorg-x11-drv-modesetting, putting the four lines

Section "Device"
Identifier "video0"
Driver     "modesetting"
EndSection

into /etc/X11/xorg.conf.d/00-modesetting.conf und restarting X. I did not test if this way is helpful for ati cards!

2. The effect happens too on systems for example with ati radeon SAPPHIRE HD 5450

3. lspci:

00:00.0 Host bridge: Intel Corporation 82G33/G31/P35/P31 Express DRAM Controller (rev 02)
00:01.0 PCI bridge: Intel Corporation 82G33/G31/P35/P31 Express PCI Express Root Port (rev 02)
00:1a.0 USB controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #4 (rev 02)
00:1a.1 USB controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #5 (rev 02)
00:1a.7 USB controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #2 (rev 02)
00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio Controller (rev 02)
00:1c.0 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 1 (rev 02)
00:1c.4 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 5 (rev 02)
00:1c.5 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 6 (rev 02)
00:1d.0 USB controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #1 (rev 02)
00:1d.1 USB controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #2 (rev 02)
00:1d.2 USB controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #3 (rev 02)
00:1d.3 USB controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #6 (rev 02)
00:1d.7 USB controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #1 (rev 02)
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev 92)
00:1f.0 ISA bridge: Intel Corporation 82801IR (ICH9R) LPC Interface Controller (rev 02)
00:1f.2 IDE interface: Intel Corporation 82801IR/IO/IH (ICH9R/DO/DH) 4 port SATA Controller [IDE mode] (rev 02)
00:1f.3 SMBus: Intel Corporation 82801I (ICH9 Family) SMBus Controller (rev 02)
00:1f.5 IDE interface: Intel Corporation 82801I (ICH9 Family) 2 port SATA Controller [IDE mode] (rev 02)
01:00.0 VGA compatible controller: NVIDIA Corporation GT218 [GeForce 210] (rev a2)
01:00.1 Audio device: NVIDIA Corporation High Definition Audio Controller (rev a1)
03:00.0 IDE interface: Marvell Technology Group Ltd. 88SE6121 SATA II / PATA Controller (rev b2)
04:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 01)