959149 - images displayed on the place of onether image, mixed up, or partially loaded

Status: UNCONFIRMED

(Core :: Graphics: ImageLib, defect)

Description

[IB]

Attachment: bug.tar.gz

User Agent: Mozilla/5.0 (X11; Ubuntu; Linux i686; rv:24.0) Gecko/20100101 Firefox/24.0 (Beta/Release)
Build ID: 20130911155657

Steps to reproduce:

When I load a page, the images are not correctly displayed.

This happens on several pages containing images, but not all.
- This problem always appears when I load http://plaisirtricot.blogspot.fr/ (blog)
- Almost always on http://www.lemonde.fr/ (newspaper)
- Never on http://www.lefigaro.fr/

Looks similar to some very old reported bugs: 222621, 256747.

Note that it still happens when :
- used the latest version of Firefox (as advised on bug report guidelines)
- created new profile
- addons desabled (safe mode)
- cache disabled

This problem appears only on that particular computer. It's been the case for few months already, the system is up to date (automatic updates). I have only observed it in Firefox (for instance no problem in viewing images on my computer with the default image viewer software).



Actual results:

The images are wrongly displayed. I could observe different "phenomena" (see screenshots), and combinations of these
(1) an image is displayed in the place of some other image
(2) an image is not displayed at all (black square instead)
(3) several images are mixed in one
(4) some mixed-up rectangle of pixels is displayed. This looks like the pixels of an image are displayed in order, but on a spot of different width. It results in interleavings of lines in which one can recognize the initial image with some deformation, or only the colors.

Each time that I load the page, different images suffer from the problem. Strange enough, some of the images on the page are altered more often than other ...


Expected results:

Images should be correctly displayed.

Comment 1

[Loic]

Could you attach the archive as zip, this one appears to be corrupt on Windows.

Comment 2

[Alice0775 White]

And Please load about:support and post the Graphics section from that page.

Comment 3

[IB]

Attachment: bug.zip

Screenshots with inserted comments.

Comment 4

[Loic]

It's an issue with image decoding.

Comment 5

[IB]

(In reply to Alice0775 White from comment #2)
> And Please load about:support and post the Graphics section from that page.

Adapter Description	Intel Open Source Technology Center -- Mesa DRI Mobile Intel® GM45 Express Chipset x86/MMX/SSE2
Device ID	Mesa DRI Mobile Intel® GM45 Express Chipset x86/MMX/SSE2
Driver Version	2.1 Mesa 9.1.4
GPU Accelerated Windows	0/1 Basic
Vendor ID	Intel Open Source Technology Center
WebGL Renderer	Intel Open Source Technology Center -- Mesa DRI Mobile Intel® GM45 Express Chipset x86/MMX/SSE2
windowLayerManagerRemote	false
AzureCanvasBackend	cairo
AzureContentBackend	none
AzureFallbackCanvasBackend	none

Comment 6

[Alice0775 White]

I guess this is bug of Mesa 9.
likely Bug 924783, Bug 887890