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Malevich Black Square in Opera

Wednesday, 14. September 2005, 01:50:10

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Today I want to present one of my favourite Opera bugs in fun way. And because I see this bug during around 3 years (since first Opera 7 beta appears) I want to give this beatiful bug his own name - Malevich Black Square bug. :D

So, first of all test page where we can see four Acid Smiles :smile: Two of them (first and third) are images and other two are DIVs with image set as background.
Now funny part. Where Malevich Square here? Just change zoom on the page in your Opera browser or print out the page (needs Print Page Background option checked).
Last Acid Smile now will appears as black square! :eyes:
I investigate this bug and found that it appears only if GIF image
  • has only black color and transparency
  • puts as background
  • need to be smaller than 64x64 px

Have fun! :D

Also read forum post about this bug.
Bug reports collection: #198211, #198161, #126808, and one more I filled myself long time ago but forgot the number...

Test suites: 1, 2, 3

Affected sites:

Links to the anchor on the same page breaked by Opera 8.50

Comments

GravityFX 17. September 2005, 02:51

LOL

Ramunas 18. September 2005, 08:10

Hmm. I see no black square.With 150% zoom everything looks normal on:
Version8.02
Build1272
PlatformLinux
Systemi686, 2.6.12-8-386
Qt library3.3.4
JavaNo Java Runtime Environment installed

FataL 19. September 2005, 16:45

This bug works on Windows version only.

olli 21. October 2005, 22:31

Interesting. Did you file a bug report? :-)

FataL 24. October 2005, 16:32

Of course I did, but can't give you exact ticket number. :frown:
Anyway, I can fill it out one more time if needed.

kyleabaker 1. March 2006, 18:03

this is a funny bug, lol. niiice find, haha. wonder what causes this. whenever this bug is fixed i hope they give us an explaination as to why it happened and what fixed it. this is very odd. :D

tprochazka 28. April 2006, 11:05

I already reported this bug many months ago. I remind it oftentimes in forums, but nothing.

Here is bug number of my report: bug-126808
And here is testcase: http://atom.mamto.cz/projekty/opera/bug4/

This bug exist from Opera 7.2 and maybe earlier!!!!!!!!

OperaCat 20. June 2006, 09:52

Hello Andrey,

I see that you have been very careful and thorough in documenting this problem.

Has this bug been fixed yet?

I am also very frustrated with some Opera bugs.
I spend hours creating test cases but very few people care.

I'm not giving up, yet.
I think the developers must fix basic bugs timely.

Moi otetz rodilcya okolo Kieva.

Regards, Jeffrey

FataL 22. June 2006, 04:44

Thanks for comment Jeffrey!
No, this bug still there - in Opera 9 final. :frown:
I spend many hours to build test cases too. And sometimes they actually fix the bugs. :wink: But anyway at that moment it's fun for me too - build test cases. :D
Do you have links to your test cases? It's would be interesting for me.
P.S. Рад видеть здеть кого-то русскоговорящего! :up:

saulob 15. July 2006, 08:51

Does he have to make one blog post to opera developers (olli was one for them) start to look at us ??

there are some bugs out there since the beginning and nothing.

FataL 5. September 2006, 21:24

Added new site to a list: http://kurafire.net/learn/archive/2005/12/intro
I don't believe anymore that Opera developers will fix this in any 9.0x releases. :frown: So, we will see if they managed to fix this in next major version...

seifip 23. October 2006, 18:16

The bug is still here in first Opera 9.1 weekly build :/

FataL 22. December 2006, 02:34

Just noticed that new design on digg has icons that appears on black background when zoom != 100%. Horrible!
Opera should fix this bug in Windows version ASAP!

JuergenJ 6. March 2007, 02:07

...And because I see this bug during around 3 years (since first Opera 7 beta appears)

You should update this. I have seen this bug at least since Opera 6.

FataL 6. March 2007, 16:42

JuergenJ, no, this bug was introduced in version 7. :smile:

JuergenJ 6. March 2007, 19:46

hmm, yes, I tested again and wonder which pretty old bug I mixed up.
May be this one? (Since Opera 3)
http://www.jeka.info/bugs/font-weight-arial.html
http://www.jeka.info/bugs/font-weight-opera3.png

tprochazka 4. September 2007, 13:02

In Opera 9.5 build 9500 is this fixed. Great. Thanks you!

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