R SIG Debian - Dec 2015 - Default R Font Changed After Upgrade to Debian 8

Good day,

I have been unable to solve this issue. Do you get grainy fonts when running the
test case

plot(1:10, main = "abcedfghijklmnopqrstuvwxyz", cex.main = 4, cex.lab
= 4, cex.axis = 4)

What version of libcairo is on your system ?

--------------------------------------
Dario Strbenac
PhD Student
University of Sydney
Camperdown NSW 2050
Australia

Dear Dario,

if you think this is an issue related to the Debian packaging rather than the 
local configuration, please provide a screenshot of the "grainy"
fonts, the
code you used to produce it, and the output of sessionInfo().

Kind regards, and a good start into the new year to all,

Johannes


Am Mittwoch, 30. Dezember 2015, 05:00:08 schrieb Dario
Strbenac:
> Good day,
> 
> I have been unable to solve this issue. Do you get grainy fonts when
running
> the test case
> 
> plot(1:10, main = "abcedfghijklmnopqrstuvwxyz", cex.main = 4,
cex.lab = 4,
> cex.axis = 4)
> 
> What version of libcairo is on your system ?
> 
> --------------------------------------
> Dario Strbenac
> PhD Student
> University of Sydney
> Camperdown NSW 2050
> Australia
> _______________________________________________
> R-SIG-Debian mailing list
> R-SIG-Debian at r-project.org
> https://stat.ethz.ch/mailman/listinfo/r-sig-debian

Good day,

The code is :

png("grainy.png", h = 600, w = 900)
plot(1:10, main = "abcedfghijklmnopqrstuvwxyz", cex.main = 4, cex.lab
= 4, cex.axis = 4)
dev.off()

and the server has the characteristics :
> getOption("bitmapType")
[1] "cairo"
> sessionInfo()
R version 3.2.3 (2015-12-10)
Platform: x86_64-pc-linux-gnu (64-bit)
Running under: Debian GNU/Linux 8 (jessie)

locale:
 [1] LC_CTYPE=C.UTF-8       LC_NUMERIC=C           LC_TIME=C.UTF-8       
 [4] LC_COLLATE=C.UTF-8     LC_MONETARY=C.UTF-8    LC_MESSAGES=C.UTF-8   
 [7] LC_PAPER=C.UTF-8       LC_NAME=C              LC_ADDRESS=C          
[10] LC_TELEPHONE=C         LC_MEASUREMENT=C.UTF-8 LC_IDENTIFICATION=C   

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base
> capabilities()
       jpeg         png        tiff       tcltk         X11        aqua 
       TRUE        TRUE        TRUE        TRUE        TRUE       FALSE 
   http/ftp     sockets      libxml        fifo      cledit       iconv 
       TRUE        TRUE        TRUE        TRUE        TRUE        TRUE 
        NLS     profmem       cairo         ICU long.double     libcurl 
       TRUE       FALSE        TRUE        TRUE        TRUE        TRUE

~$ dpkg -l | grep cairo
ii  libcairo-gobject2:amd64                                     1.14.0-2.1      
amd64        Cairo 2D vector graphics library (GObject library)
ii  libcairo-perl                                               1.104-2         
amd64        Perl interface to the Cairo graphics library
ii  libcairo-script-interpreter2:amd64                          1.14.0-2.1      
amd64        Cairo 2D vector graphics library (script interpreter)
ii  libcairo2:amd64                                             1.14.0-2.1      
amd64        Cairo 2D vector graphics library
ii  libcairo2-dev                                               1.14.0-2.1      
amd64        Development files for the Cairo 2D graphics library
ii  libmono-cairo2.0-cil                                        3.2.8+dfsg-10   
all          Mono Cairo library (for CLI 2.0)
ii  libmono-cairo4.0-cil                                        3.2.8+dfsg-10   
all          Mono Cairo library (for CLI 4.0)
ii  libpangocairo-1.0-0:amd64                                   1.36.8-3        
amd64        Layout and rendering of internationalized text
ii  libpixman-1-0:amd64                                         0.32.6-3        
amd64        pixel-manipulation library for X and cairo
ii  libpixman-1-dev                                             0.32.6-3        
amd64        pixel-manipulation library for X and cairo (development files)
ii  python-cairo                                                1.8.8-1+b2      
amd64        Python bindings for the Cairo vector graphics library
ii  python-gi-cairo                                             3.14.0-1        
amd64        Python Cairo bindings for the GObject library
ii  python3-cairo                                               1.10.0+dfsg-4+b1
amd64        Python 3 bindings for the Cairo vector graphics library
ii  python3-gi-cairo                                            3.14.0-1        
amd64        Python 3 Cairo bindings for the GObject library

I recently noticed it also affects other software, like Firefox internet
browser.

--------------------------------------
Dario Strbenac
PhD Student
University of Sydney
Camperdown NSW 2050
Australia