[i945] Black rectangle overlapping text on some sites when zooming in or out with Shiretoko (UXA bug)

[antistress]

Binary package hint: firefox

With Jaunty and Shiretoko, i get a black rectangle overlapping the text at http://blogs.gnome.org/hughsie/2009/03/05/application-installing/ when i zoom in or out.

With Jaunty and Firefox 3.0.6 everything is fine.

I'm running Jaunty with metacity+composite & i have an INTEL GMA 950 with UXA

[antistress (antistress)]

see screenshot attached

[antistress (antistress)]

same bug with http://www.think-underground.com/post/2009/03/08/Riposte-graduee-:-de-faux-arguments

[antistress (antistress)]

same bug here http://www.zdnet.fr/actualites/internet/0,39020774,39387928,00.htm?xtor=EPR-100

[antistress (antistress)]

that bug is not rare http://www.zdnet.fr/actualites/internet/0,39020774,39389007,00.htm?xtor=EPR-100

[antistress (antistress)]

here is another artefact concerning the rendering of the color of the page while zomming in/out
here is the address http://news.cnet.com/8301-13924_3-10204911-64.html?tag=newsEditorsPicksArea.0
see screenshot (left : default / right : zoom out) http://pics.imagup.com/02/1238233743_Capture-Intel details future graphics chip at GDC | Nanotech - The Circuits Blog - CNET News - Shiretoko 3.1 Beta 3.png

[Alexander Sack (asac)]

this is likely a driver bug. I think we talked about this during last desktop team meeting. Unfortunately, I cannot find the dupe right now.

Anyway, would be good to have your lspci -v output as well as your Xorg.0.log

Also consider to check whether things improve with EXA.

[Bryce Harrington (bryce)]

Hi thibaut-bethune,

Thanks for including an image to demonstrate the issue. Could you also please attach the output of `lspci -vvnn`, and attach your /var/log/Xorg.0.log or Xorg.0.log.old file from after reproducing this issue. If you've made any customizations to your /etc/X11/xorg.conf please attach that as well.

[This is an automated message. Apologies if it has reached you inappropriately; please just reply to this message indicating so.]

[antistress (antistress)]

Ok i'm running a Jaunty Live USB key system (with some space on the key to save data)
With default settings (EXA) : no problems
With UXA enabled : problems are there

~$ lspci -v
00:00.0 Host bridge: Intel Corporation 82945G/GZ/P/PL Memory Controller Hub (rev 02)
 Subsystem: ASRock Incorporation Device 2770
 Flags: bus master, fast devsel, latency 0
 Capabilities: <access denied>
 Kernel driver in use: agpgart-intel
 Kernel modules: intel-agp

00:02.0 VGA compatible controller: Intel Corporation 82945G/GZ Integrated Graphics Controller (rev 02)
 Subsystem: ASRock Incorporation Device 2772
 Flags: bus master, fast devsel, latency 0, IRQ 16
 Memory at fe980000 (32-bit, non-prefetchable) [size=512K]
 I/O ports at dc00 [size=8]
 Memory at d0000000 (32-bit, prefetchable) [size=256M]
 Memory at fe940000 (32-bit, non-prefetchable) [size=256K]
 Capabilities: <access denied>
 Kernel modules: intelfb

00:1b.0 Audio device: Intel Corporation 82801G (ICH7 Family) High Definition Audio Controller (rev 01)
 Subsystem: ASRock Incorporation Device 0888
 Flags: bus master, fast devsel, latency 0, IRQ 16
 Memory at fe938000 (64-bit, non-prefetchable) [size=16K]
 Capabilities: <access denied>
 Kernel driver in use: HDA Intel
 Kernel modules: snd-hda-intel

00:1c.0 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 1 (rev 01)
 Flags: bus master, fast devsel, latency 0
 Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
 Prefetchable memory behind bridge: 00000000fdf00000-00000000fdffffff
 Capabilities: <access denied>
 Kernel driver in use: pcieport-driver
 Kernel modules: shpchp

00:1c.1 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 2 (rev 01)
 Flags: bus master, fast devsel, latency 0
 Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
 I/O behind bridge: 0000e000-0000efff
 Memory behind bridge: fea00000-feafffff
 Capabilities: <access denied>
 Kernel driver in use: pcieport-driver
 Kernel modules: shpchp

00:1d.0 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #1 (rev 01)
 Subsystem: ASRock Incorporation Device 27c8
 Flags: bus master, medium devsel, latency 0, IRQ 23
 I/O ports at d400 [size=32]
 Kernel driver in use: uhci_hcd

00:1d.1 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #2 (rev 01)
 Subsystem: ASRock Incorporation Device 27c9
 Flags: bus master, medium devsel, latency 0, IRQ 19
 I/O ports at d480 [size=32]
 Kernel driver in use: uhci_hcd

00:1d.2 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #3 (rev 01)
 Subsystem: ASRock Incorporation Device 27ca
 Flags: bus master, medium devsel, latency 0, IRQ 18
 I/O ports at d800 [size=32]
 Kernel driver in use: uhci_hcd

00:1d.3 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #4 (rev 01)
 Subsystem: ASRock Incorporation Device 27cb
 Flags: bus master, medium devsel, latency 0, IRQ 16
 I/O ports at d880 [size=32]
 Kernel driver in use: uhci_hcd

00:1d.7 USB Controller: Intel Corporation 82801G (ICH7 Family) USB2 EHCI Controller (rev 01) (prog-if 20)
 Subsystem: ASRock Incorporation Device 27cc
 Flags: bus master, medium devsel, latency 0, IR...

[antistress (antistress)]

~$ lspci -vvnn
00:00.0 Host bridge [0600]: Intel Corporation 82945G/GZ/P/PL Memory Controller Hub [8086:2770] (rev 02)
 Subsystem: ASRock Incorporation Device [1849:2770]
 Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
 Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ >SERR- <PERR- INTx-
 Latency: 0
 Capabilities: <access denied>
 Kernel driver in use: agpgart-intel
 Kernel modules: intel-agp

00:02.0 VGA compatible controller [0300]: Intel Corporation 82945G/GZ Integrated Graphics Controller [8086:2772] (rev 02)
 Subsystem: ASRock Incorporation Device [1849:2772]
 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
 Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
 Latency: 0
 Interrupt: pin A routed to IRQ 16
 Region 0: Memory at fe980000 (32-bit, non-prefetchable) [size=512K]
 Region 1: I/O ports at dc00 [size=8]
 Region 2: Memory at d0000000 (32-bit, prefetchable) [size=256M]
 Region 3: Memory at fe940000 (32-bit, non-prefetchable) [size=256K]
 Capabilities: <access denied>
 Kernel modules: intelfb

00:1b.0 Audio device [0403]: Intel Corporation 82801G (ICH7 Family) High Definition Audio Controller [8086:27d8] (rev 01)
 Subsystem: ASRock Incorporation Device [1849:0888]
 Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
 Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
 Latency: 0, Cache Line Size: 32 bytes
 Interrupt: pin A routed to IRQ 16
 Region 0: Memory at fe938000 (64-bit, non-prefetchable) [size=16K]
 Capabilities: <access denied>
 Kernel driver in use: HDA Intel
 Kernel modules: snd-hda-intel

00:1c.0 PCI bridge [0604]: Intel Corporation 82801G (ICH7 Family) PCI Express Port 1 [8086:27d0] (rev 01)
 Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+
 Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
 Latency: 0, Cache Line Size: 32 bytes
 Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
 Prefetchable memory behind bridge: 00000000fdf00000-00000000fdffffff
 Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
 BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort- >Reset- FastB2B-
  PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
 Capabilities: <access denied>
 Kernel driver in use: pcieport-driver
 Kernel modules: shpchp

00:1c.1 PCI bridge [0604]: Intel Corporation 82801G (ICH7 Family) PCI Express Port 2 [8086:27d2] (rev 01)
 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+
 Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
 Latency: 0, Cache Line Size: 32 bytes
 Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
 I/O behind bridge: 0000e000-0000efff
 Memory behind bridge: fea00000-feafffff
 Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR...

[antistress (antistress)]

with recent drivers taken from PPA, problems have almost disapeared
considering links given above, i still have 2 bugs
1°) a reduced black area at http://blogs.gnome.org/hughsie/2009/03/05/application-installing/ (surrounding comments)
2°) a grey background on the second part of http://news.cnet.com/8301-13924_3-10204911-64.html?tag=newsEditorsPicksArea.0
pictures attached

~$ lspci -v
00:00.0 Host bridge: Intel Corporation 82945G/GZ/P/PL Memory Controller Hub (rev 02)
 Subsystem: ASRock Incorporation Device 2770
 Flags: bus master, fast devsel, latency 0
 Capabilities: <access denied>
 Kernel driver in use: agpgart-intel
 Kernel modules: intel-agp

00:02.0 VGA compatible controller: Intel Corporation 82945G/GZ Integrated Graphics Controller (rev 02)
 Subsystem: ASRock Incorporation Device 2772
 Flags: bus master, fast devsel, latency 0, IRQ 16
 Memory at fe980000 (32-bit, non-prefetchable) [size=512K]
 I/O ports at dc00 [size=8]
 Memory at d0000000 (32-bit, prefetchable) [size=256M]
 Memory at fe940000 (32-bit, non-prefetchable) [size=256K]
 Capabilities: <access denied>
 Kernel modules: intelfb

00:1b.0 Audio device: Intel Corporation 82801G (ICH7 Family) High Definition Audio Controller (rev 01)
 Subsystem: ASRock Incorporation Device 0888
 Flags: bus master, fast devsel, latency 0, IRQ 16
 Memory at fe938000 (64-bit, non-prefetchable) [size=16K]
 Capabilities: <access denied>
 Kernel driver in use: HDA Intel
 Kernel modules: snd-hda-intel

00:1c.0 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 1 (rev 01)
 Flags: bus master, fast devsel, latency 0
 Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
 Prefetchable memory behind bridge: 00000000fdf00000-00000000fdffffff
 Capabilities: <access denied>
 Kernel driver in use: pcieport-driver
 Kernel modules: shpchp

00:1c.1 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 2 (rev 01)
 Flags: bus master, fast devsel, latency 0
 Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
 I/O behind bridge: 0000e000-0000efff
 Memory behind bridge: fea00000-feafffff
 Capabilities: <access denied>
 Kernel driver in use: pcieport-driver
 Kernel modules: shpchp

00:1d.0 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #1 (rev 01)
 Subsystem: ASRock Incorporation Device 27c8
 Flags: bus master, medium devsel, latency 0, IRQ 23
 I/O ports at d400 [size=32]
 Kernel driver in use: uhci_hcd

00:1d.1 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #2 (rev 01)
 Subsystem: ASRock Incorporation Device 27c9
 Flags: bus master, medium devsel, latency 0, IRQ 19
 I/O ports at d480 [size=32]
 Kernel driver in use: uhci_hcd

00:1d.2 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #3 (rev 01)
 Subsystem: ASRock Incorporation Device 27ca
 Flags: bus master, medium devsel, latency 0, IRQ 18
 I/O ports at d800 [size=32]
 Kernel driver in use: uhci_hcd

00:1d.3 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #4 (rev 01)
 Subsystem: ASRock Incorporation Device 27cb
 Flags: bus master, medium devsel, latency 0, IRQ 16
 I/O ports at d880 [size=32]
 Kernel driver in us...

[antistress (antistress)]

~$ lspci -vvnn
00:00.0 Host bridge [0600]: Intel Corporation 82945G/GZ/P/PL Memory Controller Hub [8086:2770] (rev 02)
 Subsystem: ASRock Incorporation Device [1849:2770]
 Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
 Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ >SERR- <PERR- INTx-
 Latency: 0
 Capabilities: <access denied>
 Kernel driver in use: agpgart-intel
 Kernel modules: intel-agp

00:02.0 VGA compatible controller [0300]: Intel Corporation 82945G/GZ Integrated Graphics Controller [8086:2772] (rev 02)
 Subsystem: ASRock Incorporation Device [1849:2772]
 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
 Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
 Latency: 0
 Interrupt: pin A routed to IRQ 16
 Region 0: Memory at fe980000 (32-bit, non-prefetchable) [size=512K]
 Region 1: I/O ports at dc00 [size=8]
 Region 2: Memory at d0000000 (32-bit, prefetchable) [size=256M]
 Region 3: Memory at fe940000 (32-bit, non-prefetchable) [size=256K]
 Capabilities: <access denied>
 Kernel modules: intelfb

00:1b.0 Audio device [0403]: Intel Corporation 82801G (ICH7 Family) High Definition Audio Controller [8086:27d8] (rev 01)
 Subsystem: ASRock Incorporation Device [1849:0888]
 Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
 Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
 Latency: 0, Cache Line Size: 32 bytes
 Interrupt: pin A routed to IRQ 16
 Region 0: Memory at fe938000 (64-bit, non-prefetchable) [size=16K]
 Capabilities: <access denied>
 Kernel driver in use: HDA Intel
 Kernel modules: snd-hda-intel

00:1c.0 PCI bridge [0604]: Intel Corporation 82801G (ICH7 Family) PCI Express Port 1 [8086:27d0] (rev 01)
 Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+
 Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
 Latency: 0, Cache Line Size: 32 bytes
 Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
 Prefetchable memory behind bridge: 00000000fdf00000-00000000fdffffff
 Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
 BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort- >Reset- FastB2B-
  PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
 Capabilities: <access denied>
 Kernel driver in use: pcieport-driver
 Kernel modules: shpchp

00:1c.1 PCI bridge [0604]: Intel Corporation 82801G (ICH7 Family) PCI Express Port 2 [8086:27d2] (rev 01)
 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+
 Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
 Latency: 0, Cache Line Size: 32 bytes
 Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
 I/O behind bridge: 0000e000-0000efff
 Memory behind bridge: fea00000-feafffff
 Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR...

[antistress (antistress)]

Comments 10, 11 & 12 are about
Jaunty with metacity composited
INTEL GMA 950 with UXA
Linux 2.6.29.1 from http://kernel.ubuntu.com/~kernel-ppa/mainline/
xf86-video-intel 2.7.99.1 from https://launchpad.net/~xorg-edgers/+archive/ppa

[Bryce Harrington (bryce)]

Created an attachment (id=25359)
Xorg.0.log

Forwarding this bug from a Ubuntu reporter:
https://bugs.edge.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/338259

[Problem]
With Jaunty Ubuntu and "Shiretoko" Firefox, I get a black rectangle overlapping the text at certain websites when zooming in or out. This behavior is seen with UXA but not EXA.

[Discussion]
I'm running Jaunty with metacity composited
INTEL GMA 950 with UXA

With -intel 2.6.3 and the Jaunty kernel, the problems were more prevalent on a wide variety of websites, and quite bad.

For this bug report, the following was tested:
Linux 2.6.29.1 from http://kernel.ubuntu.com/~kernel-ppa/mainline/
xf86-video-intel 2.7.99.1 from https://launchpad.net/~xorg-edgers/+archive/ppa

With Jaunty and Firefox 3.0.6 everything is fine.
Shiretoko also renders properly when using EXA.

Some websites where the problem has exhibited itself:

http://blogs.gnome.org/hughsie/2009/03/05/application-installing/ - shows a black area (see Capture1.png)

http://news.cnet.com/8301-13924_3-10204911-64.html?tag=newsEditorsPicksArea.0 - shows grey background (see Capture2.png)

[Bryce Harrington (bryce)]

Created an attachment (id=25360)
Capture1.png

[Bryce Harrington (bryce)]

Created an attachment (id=25361)
Capture2.png

[Bryce Harrington (bryce)]

Thanks, look like all the info needed for forwarding upstream is here.

[Bryce Harrington (bryce)]

I've forwarded this bug upstream to https://bugs.freedesktop.org/show_bug.cgi?id=21516. Could you please subscribe yourself to this bug, in case they need further information or wish you to test something. Thanks ahead of time!

[Oliver Duerre (hirnstillstand)]

Same problem by me. But I'm using not an Intel graphic card. I'm using an ATI card with the fglrx driver and Compiz

[antistress (antistress)]

problem is still there with Firefox 3.5 whereas Firefox 3.0 is fine
see for instance that site given before http://blogs.gnome.org/hughsie/2009/05/29/gnome-power-manager-unstableness/

Jaunty with metacity composited
INTEL GMA 950 with UXA
Linux 2.6.30rc7 from http://kernel.ubuntu.com/~kernel-ppa/mainline/
xf86-video-intel 2.7.99.1+git2009 from https://launchpad.net/~xorg-edgers/+archive/ppa

Do you still think it's a bug for xserver-xorg-video-intel regarding Oliver comment, and why Firefox 3.0 is bug−free ?

[Petar Velkovski (pvelkovski)]

I had similar problem as described here. I have intel gma950 with UXA. In my case everything worked O.K after I booted my PC but after a few hours or so, Shiretoko would start to render pages in some weird way. The text would become unreadable in some characters, and by doing zoom-in or zoom-out of the text, one characters would be render fine, while others would become weird. What I discovered after 2 or 3 weeks is that the problem is in compiz. Because the problem with the text rendering would appear after compiz eats a lot of system memory and start to use the swap file. Following the bug reports about comiz and this memory leak, I found a simple solution. The memory leak would disappear if I restart compiz and set it to use indirect rendering option. I am not sure how it should be probably done, but this is what I did. I edited file /usr/bin/compiz (it is a script file). So:

1. Press ALT+F2 and type:
gksudo gedit /usr/bin/compiz

2. At line 74 (or round 74) I edited the line :

COMPIZ_OPTIONS="--ignore-desktop-hints --replace"
and changed it into:
COMPIZ_OPTIONS="--replace --sm-disable --ignore-desktop-hints ccp --indirect-rendering"

After this there was no compiz memory leak and no text rendering problems in Shiretoko. The compiz bug report mentions that with "indirect rendering" enabled, there is another problem, like a bug in rendering transparent windows, but that bug does not appear at my system. All this is done in combination with
xf86-video-intel 2.7.99.1+git2009 from https://launchpad.net/~xorg-edgers/+archive/ppa and all the other updates from that repository (mesa, dri2 etc.) and also kernel 2.6.30.

[Carl Worth (cworth)]

We've seen problems like this with older kernels. Have you tried a more recent kernel version to see if the problem is fixed? It very well may be.

-Carl

[Bryce Harrington (bryce)]

antistress, can you report on the upstream bug if you still see the issue when running the 2.6.31 kernel?

> Do you still think it's a bug for xserver-xorg-video-intel regarding Oliver comment, and why Firefox 3.0 is bug−free ?

Yes, my guess is Oliver is having an unrelated bug that just happens to have similar symptoms, although since he didn't provide any data about his system it's impossible to say. We're only going to focus on Intel graphics with this bug report.

[antistress (antistress)]

(i'm the original reporter)
i still have problems with latest software
For instance http://blogs.gnome.org/hughsie/2009/03/05/application-installing/ is ok at default zoom
Zoom in/out : see surroundings vertical or horizontal black lines
Zoom out a lot : see the black rectangle (interesting behavior maybe : if you refresh the page, black rectangle almost disappear. Launch any application window above Firefox GUI : black rectangle is back)
Same thing at http://www.think-underground.com/post/2009/03/08/Riposte-graduee-:-de-faux-arguments
As far as i remember, this bug is less annoying than before though

Configuration :
ASRock Conroe 1333 DVI/H R2.02 Motherboard (GMA 950)
Ubuntu 9.04 Jaunty with 2.6.31-rc4 kernel from http://kernel.ubuntu.com/~kernel-ppa/mainline/v2.6.31-rc4/
and xorg-server - 2:1.6.2.901 / xserver-xorg-video-intel - 2:2.8.0
 from https://launchpad.net/~xorg-edgers/+archive/ppa?field.name_filter=&field.status_filter=published&field.series_filter=jaunty
and Firefox-3.5

Here is my /etc/X11/xorg.conf :

# xorg.conf (X.Org X Window System server configuration file)
#
# This file was generated by dexconf, the Debian X Configuration tool, using
# values from the debconf database.
#
# Edit this file with caution, and see the xorg.conf manual page.
# (Type "man xorg.conf" at the shell prompt.)
#
# This file is automatically updated on xserver-xorg package upgrades *only*
# if it has not been modified since the last upgrade of the xserver-xorg
# package.
#
# Note that some configuration settings that could be done previously
# in this file, now are automatically configured by the server and settings
# here are ignored.
#
# If you have edited this file but would like it to be automatically updated
# again, run the following command:
# sudo dpkg-reconfigure -phigh xserver-xorg

Section "Device"
 Identifier "Configured Video Device"
EndSection

Section "Monitor"
 Identifier "Configured Monitor"
EndSection

Section "Screen"
 Identifier "Default Screen"
 Monitor "Configured Monitor"
 Device "Configured Video Device"
EndSection

[antistress (antistress)]

Created an attachment (id=28238)
screenshots of the problem with latest softwares

[antistress (antistress)]

it's done and i still have issues

[Carl Worth (cworth)]

Thanks for the additional information.

I've just cleared the "NEEDINFO" field, (which you can do whenever you
provide information requested). Without clearing this field, many
developers won't even see the bug report in their searches.

-Carl

[Chris Wilson (ickle)]

These errors are quite bizarre and reminiscent of cairo bugs that I have introduced in the past. Oddly, I would have thought this was mostly likely a cache flushing issue (even though it doesn't appear to be like any other example I can think of), but the discrepancy between UXA and EXA suggests otherwise.

As all the rendering paths were actually shared between EXA and UXA, it is not even a magnified version of the extend-none bug.

Can you please verify whether this bug is still present in the current driver with the flushing fixes (and quite a few other bugs fixed)?

[antistress (antistress)]

at smallest zoom factor, i still see that bug on http://blogs.gnome.org/hughsie/2009/03/05/application-installing/

(Ubuntu Karmic with Intel GMA 950 and Firefox 3.5.7pre from http://ppa.launchpad.net/ubuntu-mozilla-daily/ppa/ubuntu )

[antistress (antistress)]

still buggy with lucid / firefox 3.6.3

[Chris Wilson (ickle)]

I cannot reproduce this on lucid with current xorg-edgers. i915 rendering quality has improved significantly with many long-standing bugs fixed over the last 6 months. There is a slim chance that one of those accidentally fixed this bug as well.

[antistress (antistress)]

Created an attachment (id=36079)
still the bug in latest ubuntu/firefox

i'm afraid the bug is still present
see screenshot attached (82945G/GZ Integrated Graphics Controller & lucid & Firefox at http://blogs.gnome.org/hughsie/2009/03/05/application-installing/ )

[Chris Wilson (ickle)]

Nope, still not seeing this on my Ubuntu box. :(

Have you tried installing the current drivers from the xorg-edgers ppa, stock Ubuntu drivers are based on 2.9 and do not have many of the rendering fixes backported?

In particular, I *think* this is related to attempting to use a surface too large for the 3D pipeline, which I only fixed in the last few weeks.

[antistress (antistress)]

problem is still there even with the current drivers from the xorg-edgers ppa : see that video ffx-1.ogv at http://dl.free.fr/hODKMEwxf (the link is temporaray and will be deleted after 30 days)

[Chris Wilson (ickle)]

The grey outline when scaled is a genuine antialiasing artefact. However, the erroneous black fill I still haven't manage to replicate. Can you attach your current Xorg.log and print your current package versions?

[antistress (antistress)]

Created an attachment (id=36083)
Xorg.0.log

[antistress (antistress)]

Created an attachment (id=36084)
Xorg.1.log

[antistress (antistress)]

i have xserver-xorg 1:7.5+6ubuntu1~xorgedgers3~lucid and xserver-xorg-video-intel 2:2.11.0+git20100604.6db1e523-0ubuntu0sarvatt2~lucid

[Chris Wilson (ickle)]

Having experienced this on another website [bug 28497] I think I know what the cause is. If so, this should also have been fixed by:

commit b58a6a39c1568800938eb0e3ebc7664683b61200
Author: Chris Wilson <email address hidden>
Date: Wed Jun 23 23:56:44 2010 +0100

    uxa: Fallback to pixman if source is out-of-bounds

    If the source is outside the drawable, then CopyArea will fail to
    initialise the source correctly. The simplest fix in this case is to
    fallback to pixman to generate the source texture.

    Fixes:

      Bug 28497 - Graphics corruption after opening a specific website
      https://bugs.freedesktop.org/show_bug.cgi?id=28497

I've not been able to reproduce this instance, so I don't know if this patch is sufficient for this case as well.

[antistress (antistress)]

wow, i can't see the bug anymore on http://blogs.gnome.org/hughsie/2009/03/05/application-installing/ i'm quite impressed :-)
Thank you

[antistress (antistress)]

bug is fixed for me with the xorg-edgers ppa on Mozilla 3.6.6 from PPA for Ubuntu Mozilla Security Team on Lucid

[Chris Wilson (ickle)]

Thanks for checking. I'm in the process of reworking the handling of these paths, so please keep an eye for future breakages...

[Bryce Harrington (bryce)]

From the upstream bug report, this appears to have been fixed with commit b58a6a39c1568800938eb0e3ebc7664683b61200 which is included in natty.