Scrcpy: The Ctrl+V function of version 1.15.1 has no effect on some devices.

[Helaer]

Hello, I found that when some of my Android 7.1.2 phones use version 1.15.1, the Ctrl+V key combination does not have any effect.

[Helaer]

When I use Ctrl+Shift+V on version 1.14, it can be pasted.

[rom1v]

Ctrl+V key combination does not have any effect.

In which apps? What if you copy some text from the device (either with Ctrl+c or with long-press, then COPY) instead of from the computer, then Ctrl+v?

Since v1.15, Ctrl+v does 2 things:

• it copies the computer clipboard to the device clipboard
• it injects Ctrl+v on the device (which is handled by Android/the app).

The changes between v1.14 and v1.15 could be confusing. There are 3 ways to paste:

1. injecting Ctrl+v (not possible in v1.14, Ctrl+v in v1.15)
2. injecting PASTE (Ctrl+Shift+v in v1.14, MOD+v in v1.15) (only works on Android >= 7)
3. injecting the clipboard content as a sequence of key events (Ctrl+v in v1.14, MOD+Shift+v in v1.15) (see 7ad47dfaab57a7e6c7462d7e6a2798a5f122ebaf)

See https://github.com/Genymobile/scrcpy#copy-paste

When I use Ctrl+Shift+V on version 1.14

Does MOD+v work in v1.15?

[Helaer]

I tested MOD + V, but there is no response on these Android 7.1.2 devices, but it can be pasted in version 1.14.

[Helaer]

By the way, not all mobile phones will be like this, this problem only occurs on some Android 7.1.2 devices.

[rom1v]

Using one of these Android 7.1.2 devices, copy some text on the computer (with Ctrl+c), copy some text on the device (long-press, COPY).

Then could you describe the result for each case:

On v1.14:

• Ctrl+v: ?
• Ctrl+Shift+v: ?

On v1.15.1:

• MOD+v: ?
• Ctrl+v: ?
• ~Ctrl+Shift+v~ MOD+Shift+v: ?

With adb:

• adb shell input keyevent PASTE: ?

[Helaer]

On v1.14:
Ctrl+v: Cannot paste non-ASCII characters
Ctrl+Shift+v: Can paste non-ASCII characters

On v1.15.1:
MOD+v: No response, the clipboard is not synchronized.
Ctrl+v: No response, the clipboard is not synchronized.
Ctrl+Shift+v: No response, the clipboard is not synchronized.

With adb:
adb shell input keyevent PASTE: Can paste non-ASCII characters

[rom1v]

Ctrl+Shift+v: No response, the clipboard is not synchronized.

Sorry, I meant MOD+Shift+v.

[Helaer]

MOD+Shift+v，cmd returns information：
[server] WARN: Could not inject char u+5378
[server] WARN: Could not inject char u+8f7d
[server] WARN: Could not inject char u+65e7
[server] WARN: Could not inject char u+7248

[rom1v]

Without pasting any ASCII characters?

[Helaer]

MOD+Shift+V can paste ASCII characters.

[rom1v]

Could you please retest MOD+v and Ctrl+v on v1.15.1 + some more logs:

diff --git a/app/src/input_manager.c b/app/src/input_manager.c
index 1d73980c..14fe73d6 100644
--- a/app/src/input_manager.c
+++ b/app/src/input_manager.c
@@ -177,6 +177,7 @@ collapse_notification_panel(struct controller *controller) {
 static void
 set_device_clipboard(struct controller *controller, bool paste) {
     char *text = SDL_GetClipboardText();
+    LOGI("Computer clipboard: \"%s\"", text);
     if (!text) {
         LOGW("Could not get clipboard text: %s", SDL_GetError());
         return;
diff --git a/server/src/main/java/com/genymobile/scrcpy/Controller.java b/server/src/main/java/com/genymobile/scrcpy/Controller.java
index 9100a9db..af3fe86a 100644
--- a/server/src/main/java/com/genymobile/scrcpy/Controller.java
+++ b/server/src/main/java/com/genymobile/scrcpy/Controller.java
@@ -117,6 +117,7 @@ public class Controller {
                 }
                 break;
             case ControlMessage.TYPE_SET_CLIPBOARD:
+                Ln.i("Set device clipboard (" + msg.getPaste() + "): \"" + msg.getText() + "\"");
                 setClipboard(msg.getText(), msg.getPaste());
                 break;
             case ControlMessage.TYPE_SET_SCREEN_POWER_MODE:
@@ -263,6 +264,7 @@ public class Controller {

         // On Android >= 7, also press the PASTE key if requested
         if (paste && Build.VERSION.SDK_INT >= Build.VERSION_CODES.N && device.supportsInputEvents()) {
+            Ln.i("Injecting PASTE");
             device.injectKeycode(KeyEvent.KEYCODE_PASTE);
         }

diff --git a/server/src/main/java/com/genymobile/scrcpy/Device.java b/server/src/main/java/com/genymobile/scrcpy/Device.java
index de551f35..73a38296 100644
--- a/server/src/main/java/com/genymobile/scrcpy/Device.java
+++ b/server/src/main/java/com/genymobile/scrcpy/Device.java
@@ -224,6 +224,7 @@ public final class Device {

         String currentClipboard = getClipboardText();
         if (currentClipboard == null || currentClipboard.equals(text)) {
+            Ln.i("Clipboard already set, ignoring");
             // The clipboard already contains the requested text.
             // Since pasting text from the computer involves setting the device clipboard, it could be set twice on a copy-paste. This would cause
             // the clipboard listeners to be notified twice, and that would flood the Android keyboard clipboard history. To workaround this

Here is a binary (replace it in you v1.15.1 release):

• scrcpy-server
  _SHA256: 7ce7dbd7a23895308c284f047ea4c0dd529700e28d1b3b5f1a0abc873c0b94dc_

_(if you are comfortable in applying diff and build to test, please tell me, it would avoid to generate a binary next time)_

[Helaer]

Ctrl+V:
[server] INFO: Device: ZUK Z2 Plus (Android 7.1.2)
INFO: Renderer: direct3d
INFO: Initial texture: 1080x1920
[server] INFO: Set device clipboard (false): "1276425564@&^%$155"
[server] INFO: Clipboard already set, ignoring

MOD+V
[server] INFO: Device: ZUK Z2 Plus (Android 7.1.2)
INFO: Renderer: direct3d
INFO: Initial texture: 1080x1920
[server] INFO: Set device clipboard (true): "1276425564@&^%$155"
[server] INFO: Clipboard already set, ignoring
[server] INFO: Injecting PASTE

Neither method can paste this character into the device.

[Helaer]

In fact, I really look forward to your perfect implementation of the Ctrl+V paste method.

[rom1v]

Oh, got it! The condition was incorrect: 80a240cbd4657b7ffb67f69df01a4c104f0cfcb7

Could you please confirm that it fixes your problem?

• scrcpy-server
  _SHA256: 4b5378ccfa4219415dc745d8224941ed65de331179cc0c5f551ef2f214bba3f7_

[Helaer]

Thanks, it can be pasted normally!

[Helaer]

Thank you so much, you can publish a fixed version!

[rom1v]

Thank you for your report and tests :+1:

Merged in dev: 95f1ea0d80e6bb61579ae6c9a50554d235d91383

you can publish a fixed version!

Yes, the bug could require to publish v1.15.2, but I think that if everything is ok with the pinch-to-zoom implementation (https://github.com/Genymobile/scrcpy/issues/24#issuecomment-671063070), I will probably just publish v1.16 soon.

[Helaer]

Very good, I am looking forward to it!

[rom1v]

(If you have time, I'm interested in tests/feedbacks for the pinch-to-zoom feature :wink:)

[rom1v]

Fixed in v1.16.