From 35a7315b77467bd796d14f19103934530f673554 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Cyryl=20P=C5=82otnicki?= <cyplo@cyplo.net>
Date: Mon, 15 Jul 2019 21:31:39 +0100
Subject: [PATCH] Better hidpi handling

---
 nixos/common.nix             | 3 ++-
 nixos/home.nix               | 1 -
 nixos/programs/alacritty.nix | 4 ++--
 nixos/user-xsession.nix      | 9 ++++++---
 4 files changed, 10 insertions(+), 7 deletions(-)

diff --git a/nixos/common.nix b/nixos/common.nix
index 67e3ef9c..b25f376b 100644
--- a/nixos/common.nix
+++ b/nixos/common.nix
@@ -76,8 +76,9 @@ in
             clickMethod = "clickfinger";
           };
 
-          displayManager.slim = {
+          displayManager.sddm = {
             enable = true;
+            enableHidpi = true;
           };
         };
       };
diff --git a/nixos/home.nix b/nixos/home.nix
index a53b42c0..ce2e67d1 100644
--- a/nixos/home.nix
+++ b/nixos/home.nix
@@ -27,7 +27,6 @@ in
     ];
     home.sessionVariables = {
       TERMINAL="alacritty";
-      GDK_SCALE="2";
       QT_AUTO_SCREEN_SCALE_FACTOR="1";
     };
 
diff --git a/nixos/programs/alacritty.nix b/nixos/programs/alacritty.nix
index f1be2f6d..886ecd1f 100644
--- a/nixos/programs/alacritty.nix
+++ b/nixos/programs/alacritty.nix
@@ -17,7 +17,7 @@
 
       font = {
         family = "DejaVu Sans Mono for Powerline";
-        size = 12.0;
+        size = 8.0;
       };
 
       draw_bold_text_with_bright_colors = true;
@@ -50,7 +50,7 @@
           white=   "0xfdf6e3";
         };
 
-        background_opacity= 1.0;
+        background_opacity = 0.9;
         dynamic_title= true;
       };
       cursor= {
diff --git a/nixos/user-xsession.nix b/nixos/user-xsession.nix
index 165e22b7..e265a9cd 100644
--- a/nixos/user-xsession.nix
+++ b/nixos/user-xsession.nix
@@ -14,6 +14,7 @@ in
         package = pkgs.i3-gaps;
         config = {
           startup = [
+            { command = "exec autorandr -c"; always = true; notification = false; }
             { command = "exec i3-sensible-terminal"; always = false; notification = false; }
             { command = "exec $HOME/dev/dotfiles/lock.sh"; always = false; notification = false; }
           ];
@@ -61,6 +62,10 @@ in
 
     programs.autorandr = {
       enable = true;
+      hooks.postswitch = {
+        "notify-i3" = "''${pkgs.i3}/bin/i3-msg restart";
+      };
+
       profiles = {
         "foureighty-alone" = {
           fingerprint = {
@@ -70,10 +75,8 @@ in
             eDP1 = {
               enable = true;
               primary = true;
-              position = "0x0";
               mode = "2560x1440";
-              rate = "60.00";
-              scale = { x=1.25; y=1.25; };
+              dpi = 192;
             };
           };
         };