Elementary OS : "nvidia" driver, font size and DPI adjustment

[Niki Kovacs]

Hi,

I recently migrated my office server to Ubuntu 14.04 LTS, and my main 
workstation to Elementary OS, a nice Ubuntu spinoff. I don't quite know 
if this is the right place to ask questions about Elementary OS, since 
the project doesn't really have some sort of well-established forum. On 
the other hand, it's essentially Ubuntu 12.04 under the hood, only with 
a different interface on top. So here goes.

I've installed this system on a quad core Xeon workstation with an 
NVidia video card.

[kikinovak at alphamule:~] $ lspci | grep -i vga
01:00.0 VGA compatible controller: NVIDIA Corporation GF119 [GeForce GT 
520] (rev a1)

I've tried out two different proprietary NVidia drivers. The 331 driver 
worked, sort of, but the interface didn't sport any hot corners, which I 
like to use for switching between windows and/or workspaces. Reverting 
to the 304 driver solved that problem.

I've been running all sorts of distros on PCs with NVidia cards - 
Slackware, CentOS, Debian - and I'm somewhat familiar with the 
phenomenon that activating this driver affects font sizes for both the 
user interface as well as applications. I've been working on Xfce and 
KDE before, and usually the problem was solved by adjusting the DPI 
value and restarting X.

I'd like to correct the DPI system-wide, e. g. for all users of the 
machine. I've tried out various suggestions found after a couple of 
hours of googling, all to no avail. Changing only the interface font is 
not really a solution, since fonts for web pages are too tiny, for example.

Now I'm at a point where all the solutions become a blur, and I'm 
clueless. Any suggestions?

Cheers from the sunny south of France,

Niki
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