Bug#595200: Parts of the firefox/iceweasel window are completely black

Hartmut Wernisch harti at notmybeer.com
Wed Sep 15 09:45:22 UTC 2010


On Wed, 15 Sep 2010 10:41:46 +0200
Andreas Henriksson <andreas at fatal.se> wrote:

> On Wed, Sep 15, 2010 at 10:13:24AM +0200, Hartmut
> Wernisch wrote: [...]
> > 
> > After some investigations I found that it must have
> > something to do with the fglrx drivers.
> [...]
> 
> The fglrx drivers are buggy. There is a workaround for
> this issue in cairo.
> 
> If "dpkg -l libcairo2" says you're using 1.8.10-4,
> upgrade now!
> 
> 1.8.10-5 introduces this workround, 1.8.10-6 disables the
> woraround by default since it adds a penalty for everybody
> and fglrx is apparently the only buggy driver.
> 
> Read /usr/share/doc/libcairo2/changelog.Debian.gz for how
> to enable it!
> 
> cairo (1.8.10-6) unstable; urgency=low
> 
>   * debian/patches/02_iceweasel-buggy-repeat.patch:
>     + Revert logic of the patch for the infamous
> iceweasel rendering problems. The only broken X11 driver
> that is left seems to be fglrx and always enabling the
> workaround code in cairo causes severe performance
> degradations for everybody (Closes: #594245). Thanks for
> Josselin Mouette for the patch. Everybody using the fglrx
> driver should set the MOZ_CAIRO_BUGGY_REPEAT environment
> variable, everybody else should get a correctly working
> and fast cairo again.
> 
>  -- Sebastian Dröge <slomo at debian.org>  Fri, 10 Sep 2010
> 10:48:34 +0200
> 

thanks for that hint! I am running 1.8.10-6, but setting
the env-var doesn't help.

> 
> Now please go bug AMD to fix the drivers if you think
> this bug is annoying!
> 

Yes, I'll go with the fbdev for now.

Thanks for your help!

cu
-harti

es?





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