Re: [trinity-devel] TDE on dense small screens - tde-devels

12 Dec 2017

On Monday 11 December 2017, Dr. Nikolaus Klepp wrote:
...
  Am Montag, 11. Dezember 2017 schrieb Vincent Reher:
  On Sunday 10 December 2017, Jim wrote:
  On Sat, Dec  9, 2017 at 19:21 (-0800), Vincent
Reher wrote:

  Hello TDE Developers,  
 I am not a TDE developer, but if you are willing to hear from random
 people on this olist...

  I recently purchased a Dell XPS15 laptop for my
daughter and before
 I turn it over to her, I am experimenting to see what must be done
 to make it usable under Linux/TDE for those with no better than
 normal eyesight.  Per EDID, the laptop's native screen resolution is
 3840 x 2160 and its physical screen dimensions are 346 x 194mm
 (~15.6" diagonal).  My objective is to run the laptop at native
 resolution both inside and outside of X (no re-scaling).  I am using a macbook pro
(2880x1800 on a 15" screen) and a 4K 27"
 monitor, and I went through this a while back.

 Having said that, while I use various TDE programs, I don't use TDE's
 window manager, so this advice may not work for you.

 <snip>

  Of course, if HiDPI issues have already been
addressed by others in
 the post R14.0.4 source code, that would be great.  
 I solved a lot of problems by putting

     export GDK_SCALE=2

 in my ~/.xprofile, which gets read by /etc/X11/xdm/Xsession,
 /etc/tde/tdm/Xsession and /etc/kde/kdm/Xsession (at least on my
 system) and helps a lot of GTK3 programs look reasonable.

 It shouldn't hurt (too much) to give this a try.  I'd be interested in
 knowing how it works out.

 It is too bad that so many software designers assume that screen
 resolutions would be 90 - 100 DPI for all time.

 Cheers.

                                 Jim

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 Hi Jim,

 I think the Firefox I am using was built to utilize GTK+-3.x.  If that is correct, I did
not see any issues with it despite the fact that the GDK_SCALE environment variable is not
set.

 I am curious about one thing you mentioned: are actually using TDE (the desktop
environment per se) with a window manager other than twin?  If so, I would be interested
to know how that worked out for you as I had noted that alternative window managers can be
configured.  That might solve at least the "microscopic window resizing arrows"
part of the problem.  
 If you are adressing a GTK appication here, then the "microscopic window resizing
arrows" is comming  from some genuis in GNOME. You can search the mailing list for my
adventures. Anyway, this might help (or not any more, as GNOME "matures"):

 # der GNOME W$&"§%$§: 
 # GTK3: ~/.config/gtk-3.0/settings.ini
 $ dconf write /org/gnome/desktop/interface/cursor-size 32

 # GTK2: ~/.gtkrc-2.0
 $ lxappereance

 # ~/.gtkrc-2.0
 gtk-cursor-theme-size=48

 Thanks,
 Vince

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Although my primary concern is getting QT3/TDE right, your response reminds me to continue
paying attention to GTK*, which I had to work with in the past to ensure that fonts are
sized and displayed correctly in applications using those toolkits.  I must admit that I
never cease to be amazed by decisions to use binary file formats (e.g. dconf) to store
simple configuration data.

I can see that you are a big fan of GNOME :)