続:スマホを外部ディスプレイ

以前SpacedeskというアプリでAndroidスマホを外付けモニターとして使ってると書いた際、Splashtop Wired XDisplay の名前も出したので試してみました。

以前は WiredXDisplayってのを使ってたんですがSpaceDeskってのが新しそう

スマホを外部ディスプレイに

2時間ぐらい頑張りましたが結果下の画面ショットで赤線引いてある Mirror Mode(複製)しか動きませんでした。

これではほぼ意味ありません。拡張ディスプレイ(extended display)としては使えません。残念。

image

おそらくこのアプリはWindowsのundocumentedな裏技的機構を使ってたんだと思います。

下のスレッドのタイトルには Intel HD Graphics とありますがATIも駄目とあるので要は上でも赤線引いたWindows10 Updateだと思います。

it doesnt work since a few win 10 updates ago.

Why can’t I use extend display app after upgrading Intel graphic driver? – Splashtop Personal – Support

Smartphone as external display:Spacedesk

So, we are working from home these days and some of don’t have real external monitor.

Spacedesk is a nice application which turns many devices, including Android smartphones, into 2nd display for Windows 10 PC.

image

However, it uses TCP/IP to communicate with you device so it doesn’t work when you are on “Full Tunnel VPN”.

“Split Tunnel”  , like a screenshot above, will work. Spacedesk doc page mentions VPN as in below but I guess the workaround mentioned here only works in very minor situation.

prevents the network discovery process between spacedesk server and client, which results to „Cannot Detect Primary Machine“

spacedesk | Multi Monitor App | Virtual Display Screen | Software Video Wall | documentation

WiredXDisplay may work. Splashtop doc doesn’t seem to mention ‘RNDIS’ anywhere.  Instead, it mentions “ADB” as in below.  I hope I can try this soon.

“Developer Option” and “USB Debugging”, and also “trust” the computer, because this app needs ADB (Android Debug Bridge)

Why does my Android device fail to connect to my PC using Wired XDisplay? – Splashtop Personal – Support