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-rw-r--r--pkgs/os-specific/linux/powertop/default.nix5
-rw-r--r--pkgs/os-specific/linux/powertop/fix-vertical-scrolling.patch13
2 files changed, 17 insertions, 1 deletions
diff --git a/pkgs/os-specific/linux/powertop/default.nix b/pkgs/os-specific/linux/powertop/default.nix
index 54fdfb354d1f..691b216073fd 100644
--- a/pkgs/os-specific/linux/powertop/default.nix
+++ b/pkgs/os-specific/linux/powertop/default.nix
@@ -20,7 +20,10 @@ stdenv.mkDerivation rec {
       url = "https://git.alpinelinux.org/cgit/aports/plain/main/powertop/strerror_r.patch?id=3b9214d436f1611f297b01f72469d66bfe729d6e";
       sha256 = "1kzddhcrb0n2iah4lhgxwwy4mkhq09ch25jjngyq6pdj6pmfkpfw";
     }
-  );
+  ) ++ [
+    # Fix vertical scrolling, see: https://lists.01.org/pipermail/powertop/2019-March/002046.html
+    ./fix-vertical-scrolling.patch
+  ];
 
   postPatch = ''
     substituteInPlace src/main.cpp --replace "/sbin/modprobe" "modprobe"
diff --git a/pkgs/os-specific/linux/powertop/fix-vertical-scrolling.patch b/pkgs/os-specific/linux/powertop/fix-vertical-scrolling.patch
new file mode 100644
index 000000000000..b9b3fdbaf343
--- /dev/null
+++ b/pkgs/os-specific/linux/powertop/fix-vertical-scrolling.patch
@@ -0,0 +1,13 @@
+diff --git a/src/display.cpp b/src/display.cpp
+index 07227c5..7b3a7a2 100644
+--- a/src/display.cpp
++++ b/src/display.cpp
+@@ -244,7 +244,7 @@ void cursor_down(void)
+ 	w = tab_windows[tab_names[current_tab]];
+ 	if (w) {
+ 		if (w->ypad_pos < 1000) {
+-			if (tab_names[current_tab] == "Tunables" || "WakeUp") {
++			if (tab_names[current_tab] == "Tunables" || tab_names[current_tab] == "WakeUp") {
+ 		                if ((w->cursor_pos + 7) >= LINES) { 
+ 					prefresh(w->win, ++w->ypad_pos, w->xpad_pos, 
+ 						1, 0, LINES - 3, COLS - 1);