Re: [gentoo-user] Re: Re: big fonts after Xorg update

[Paul Hartman]

On Mon, Oct 19, 2009 at 3:47 PM, Thorsten Kampe
<thorsten@×××××××××××××.de> wrote:
> * Paul Hartman (Mon, 19 Oct 2009 15:38:12 -0500)
>>
>> On Mon, Oct 19, 2009 at 3:18 PM, Thorsten Kampe
>> <thorsten@×××××××××××××.de> wrote:
>
>> > That was the solution. I checked the resolution before the upgrade with
>> > "xdpyinfo | grep resolution" (Tip from the German list): 75 dpi.
>> > Afterwards: 96 dpi. Setting it to 75 solved the issue.
>> >
>> > I'd still like to know what exactly changed and if 75 or 96 is the
>> > "correct" value. Nevertheless, I have Xorg server 1.6 running and it
>> > looks fine.
>>
>> Divide your screen resolution (pixels) by its visible area (inches) to
>> get DPI. For example my monitor screen is 16 inches wide and 12 inches
>> tall and I use 1600x1200 resolution. That is 100dpi. In my system this
>> is autodetected when xorg starts (maybe the nvidia drivers do it?).
>
> This is a VMware virtual machine using a virtual monitor on a physical
> machine with two physical monitors. I'm not sure whether calculating DPI
> that way would lead to meaningfull results for the virtual machine. This
> whole "hard" setting of DPI for a monitor seems anachronistic to me.

I think the DPI of the monitor would still be valid in the vmware
window, just set it to that of your physical monitor and I think it
should be the same. The size of 1 pixel in the vmware window should be
the same as the size of 1 pixel in your monitor normally. If your two
monitors are not the same DPI then things could be complicated though.
I don't use multi-monitors so I'm unfamiliar with how that would work.

In my Xorg.0.log I see these lines among others from the Nvidia driver
initialization:

(II) NVIDIA(0): Virtual screen size determined to be 2048 x 1152
(--) NVIDIA(0): DPI set to (101, 100); computed from "UseEdidDpi" X config
(--) NVIDIA(0):     option

Not sure how it works for other video drivers. On this one, at least,
the DPI is set automatically.