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gnu: lightdm: Apply patch to fix a problem with VNC integration.

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* gnu/packages/patches/lightdm-vncserver-check.patch: New patch.
* gnu/local.mk (dist_patch_DATA): Register it.
* gnu/packages/display-managers.scm (lightdm): Apply it.
This commit is contained in:
Maxim Cournoyer 2022-08-09 10:24:42 -04:00
parent 0e76781df4
commit da3c784c68
No known key found for this signature in database
GPG key ID: 1260E46482E63562
3 changed files with 71 additions and 3 deletions
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1
gnu/local.mk
View file

@ -1360,6 +1360,7 @@ dist_patch_DATA = \
%D%/packages/patches/librime-fix-build-with-gcc10.patch \
%D%/packages/patches/libvirt-add-install-prefix.patch \
%D%/packages/patches/libziparchive-add-includes.patch \
%D%/packages/patches/lightdm-vncserver-check.patch \
%D%/packages/patches/localed-xorg-keyboard.patch \
%D%/packages/patches/kdiagram-Fix-missing-link-libraries.patch \
%D%/packages/patches/kiki-level-selection-crash.patch \

3
gnu/packages/display-managers.scm
View file

@ -268,7 +268,8 @@ experience for your users, your family and yourself")
(file-name (git-file-name name version))
(sha256
(base32
"1wr60c946p8jz9kb8zi4cd8d4mkcy7infbvlfzwajiglc22nblxn"))))
"1wr60c946p8jz9kb8zi4cd8d4mkcy7infbvlfzwajiglc22nblxn"))
(patches (search-patches "lightdm-vncserver-check.patch"))))
(build-system gnu-build-system)
(arguments
'(#:parallel-tests? #f ; fails when run in parallel

66
gnu/packages/patches/lightdm-vncserver-check.patch Normal file
View file

@ -0,0 +1,66 @@
Honor the Xvnc command specified in the config instead of using a hard-coded
default.
Submitted upstream at: https://github.com/canonical/lightdm/pull/265
diff --git a/src/lightdm.c b/src/lightdm.c
index 74f9ff2d..0ccfcd78 100644
--- a/src/lightdm.c
+++ b/src/lightdm.c
@@ -349,27 +349,42 @@ start_display_manager (void)
/* Start the VNC server */
if (config_get_boolean (config_get_instance (), "VNCServer", "enabled"))
{
- g_autofree gchar *path = g_find_program_in_path ("Xvnc");
- if (path)
+ /* Validate that a the VNC command is available. */
+ g_autofree gchar *command = config_get_string (config_get_instance (), "VNCServer", "command");
+ if (command)
{
- vnc_server = vnc_server_new ();
- if (config_has_key (config_get_instance (), "VNCServer", "port"))
+ g_auto(GStrv) tokens = g_strsplit (command, " ", 2);
+ if (!g_find_program_in_path (tokens[0]))
{
- gint port = config_get_integer (config_get_instance (), "VNCServer", "port");
- if (port > 0)
- vnc_server_set_port (vnc_server, port);
+ g_warning ("Can't start VNC server; command '%s' not found", tokens[0]);
+ return;
}
- g_autofree gchar *listen_address = config_get_string (config_get_instance (), "VNCServer", "listen-address");
- vnc_server_set_listen_address (vnc_server, listen_address);
- g_signal_connect (vnc_server, VNC_SERVER_SIGNAL_NEW_CONNECTION, G_CALLBACK (vnc_connection_cb), NULL);
-
- g_debug ("Starting VNC server on TCP/IP port %d", vnc_server_get_port (vnc_server));
- vnc_server_start (vnc_server);
}
else
- g_warning ("Can't start VNC server, Xvnc is not in the path");
+ {
+ /* Fallback to 'Xvnc'. */
+ if (!g_find_program_in_path ("Xvnc")) {
+ g_warning ("Can't start VNC server; 'Xvnc' command not found");
+ return;
+ }
+ }
+
+ vnc_server = vnc_server_new ();
+ if (config_has_key (config_get_instance (), "VNCServer", "port"))
+ {
+ gint port = config_get_integer (config_get_instance (), "VNCServer", "port");
+ if (port > 0)
+ vnc_server_set_port (vnc_server, port);
+ }
+ g_autofree gchar *listen_address = config_get_string (config_get_instance (), "VNCServer", "listen-address");
+ vnc_server_set_listen_address (vnc_server, listen_address);
+ g_signal_connect (vnc_server, VNC_SERVER_SIGNAL_NEW_CONNECTION, G_CALLBACK (vnc_connection_cb), NULL);
+
+ g_debug ("Starting VNC server on TCP/IP port %d", vnc_server_get_port (vnc_server));
+ vnc_server_start (vnc_server);
}
}
+
static void
service_ready_cb (DisplayManagerService *service)
{