Re: [darktable-user] SOLVED (but a Bug is discovered): dt opens highly magnified

[Tobias Ellinghaus]

Am Montag, 14. November 2016, 08:28:32 CET schrieb J Albrecht:
> Dual Monitor set-up!   The problem arose due to the use of dual monitors.
> Once I closed the lid on my laptop and restarted darktable, the program
> appeared at the proper magnification. When I opened the lid to reactivate
> the laptop screen, the correct magnification remained.
> 
> Just for the helluvit, I exited the program and restarted (with both
> monitors active)… darktable opened at the earlier incorrect magnification.
> 
> This is clearly a bug, albeit one with an easy work-around.

Yes, the problem is that darktable (or GTK) doesn't know which monitor will 
display darktable so it picks one. In your case it's the wrong one. Normally 
that isn't that big of a problem as the DPI are similar for most people. 
However, if one is an high DPI screen then you are in trouble. What I would do 
is closing the laptop lid and starting darktable from a terminal like this:

darktable -d control | egrep "dpi|ppd"

Write down the auto detected dpi and ppd numbers and put those into your 
darktablerc in those keys:

[...]

> > screen_dpi_overwrite=150
> > screen_ppd_overwrite=-1.0

Then it should still work when the laptop lid is open.

[...]

Tobias

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[darktable-user] SOLVED (but a Bug is discovered): dt opens highly magnified

[J Albrecht]

Dual Monitor set-up!   The problem arose due to the use of dual monitors. Once 
I closed the lid on my laptop and restarted darktable, the program appeared at 
the proper magnification. When I opened the lid to reactivate the laptop 
screen, the correct magnification remained.

Just for the helluvit, I exited the program and restarted (with both monitors 
active)…
darktable opened at the earlier incorrect magnification.

This is clearly a bug, albeit one with an easy work-around.

My displays are as follows:

Laptop:
Display Type:   Retina LCD
Resolution: 2560 x 1600 Retina


External Monitor:
Resolution: 1920 x 1080 @ 60Hz (1080p)
Pixel Depth:32-Bit Color (ARGB)




> On 14 Nov 2016, at 02:11, johannes hanika  wrote:
> 
> hi,
> 
> no idea about mac specifically, but did you check your darktablerc
> (wherever that may be on mac), in particular
> 
> screen_dpi_overwrite=150
> screen_ppd_overwrite=-1.0
> 
> these two ^ ? these are my settings for a 3k monitor, set
> screen_dpi_overwrite=-1 for the defaults or play with it to suit your
> needs.
> 
> hth,
> jo
> 
> On Mon, Nov 14, 2016 at 9:34 AM, J Albrecht  wrote:
>> That was rather stupid of me. Here are my details:
>> 
>> I’m running dt 2.0.7 on an MBPr under OS X 10.11.6
>> 
>> Update: I uninstalled the program along with the plist file. I also renamed
>> the config before re-installing the program. The result was: No joy. Same
>> thing. I don’t experience this with any of the other programs on my box. Any
>> suggestions, please?
>> 
>> 
>> On 13 Nov 2016, at 15:18, J Albrecht  wrote:
>> 
>> Hello All,
>> 
>> This one has me perplexed. I hope that I’ve merely screwed-up a basic
>> setting which somebody could point out to me: When opening darktable, the
>> entire interface is highly magnified. I can’t zoom-out to return to a normal
>> view. This happens regardless of whether I’m in lighttable, darkroom or
>> other modules.
>> 
>> Thanks in advance for your assistance.
>> 
>> 
>> Freundliche Grüße / Best regards,
>> --
>> J Albrecht
>> 
>> 



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