Blank window on macOS 10.14

[wizardfrag]

Hi,

I've installed kitty using the bash script, however once it started it presented me with a blank window as below:

Interacting with the terminal (such as by typing say Hello world) works, however nothing is output to the screen. I'm not sure if this is an issue with kitty or with macOS 10.14, but it would be nice to use this!

Required info

kitty version: 0.12.0
macOS version: 10.14 Beta (18A384a)
kitty config: default as installed by bash script

[kovidgoyal]

sorry, I dont have the resources to support beta OSes. I can tell you that kitty works fine with 10.13.

Make sure that the text is not just invisible because the foreground color is the same as the background color. (You can drag witht he mouse to selelct which should test that).

[wizardfrag]

That's fine, I understand that.

Is there any way I can try to debug this myself?

[kovidgoyal]

As I said, the first step is to check if it si a color problem. Assuming it isn't run kitty from the command like with the --debug-gl flag and see if it reports any errors. Also check console.app for any error messages.

[wizardfrag]

Ah I thought I'd mentioned that I tried selecting text... --debug-gl doesn't show anything, however moving/resizing the window around causes it to start rendering... I'll close this for now...

[kovidgoyal]

See if the following patch helps:

diff --git a/kitty/child-monitor.c b/kitty/child-monitor.c
index 063baa0a..6a0b7bb1 100644
--- a/kitty/child-monitor.c
+++ b/kitty/child-monitor.c
@@ -769,6 +769,12 @@ static PyObject*
 main_loop(ChildMonitor *self, PyObject *a UNUSED) {
 #define main_loop_doc "The main thread loop"
     bool has_open_windows = true;
+#ifdef __APPLE__
+    if (global_state.has_pending_resizes) process_pending_resizes(now);
+    render(now);
+    wakeup_main_loop();
+    wait_for_events();
+#endif
 
     while (has_open_windows) {
         double now = monotonic();

[nthapaliya]

I tried the patch. It doesn't compile.

[wizardfrag]

I've gotten it to compile by adding double now = monotonic() after the #ifdef and compiling using CFLAGS=-Wno-error make however it still doesn't seem to render...

Without the CFLAGS it complains that a lot of the calls from glfw are deprecated... I can provide logs if necessary?

[kovidgoyal]

Well that was just a shot in the dark. Apple has deprecated OpenGL so that's not a surprise.

[kovidgoyal]

Well now that mojave has been released officially, I am re-opening. Sadly I wont have access o my mac for another day or two, so I dont know if the issue is still present.

[zackangelo]

Can confirm that the issue is still present in the Mojave GA release.