如何讓第三方遠端桌面軟體有正確解析度

如何讓第三方遠端桌面軟體有正確解析度
如何讓第三方遠端桌面軟體有正確解析度

近來有收到一些使用者詢問有關使用第三方遠端桌面軟體 (e.g. radmin) 時,會發現顯示解析度只有640×480的問題。這篇文章主要是針對有使用第三方遠端桌面軟體時,讓 GCP VM (OS為Windows Server) 顯示出正常解析度的辦法。


若是預設的情況,解析度會顯示成較小的畫面。

Figure 01. 第三方遠端連線軟體連入後,顯示解析度只有640×480

解決作法:

GCP 支援 GCP Windows image v20190312 或更高版本的 Windows VM上使用virtual display,我們僅需要將這項功能透過 GCP Console打開即可。

  1. 到 GCP Console > Compute Engine ,選擇欲遠端連入之主機,點擊Stop。

Figure 02. 先Stop欲連線的VM主機

2. VM 停止後,點擊Edit 進行編輯。

Figure 03. 點擊Edit,編輯VM

3. 找到Display device的區塊,將Turn on display device的選項打勾。

Figure 04. 找到Display device的區塊

Figure 05. 將Turn on display device的選項開啟

4. 按下Save 進行儲存。

Figure 06. 按下Save

5. 將該台VM進行開機,再重新進行遠端連線。可以看到遠端桌面所顯示的畫面已更變為正常應有的顯示大小,完成。

Figure 07. 解析度變為正常的顯示大小

針對Windows image v20190312以前的版本,預設是沒有安裝virtual display的driver,需要透過PowerShell (run as administrator),

googet install google-compute-engine-driver-gga

之後重新啟動VM即可。

此篇文章主要在解決 GCP Windows instance沒有辦法提供第三方遠端連線軟體正確顯示正常大小解析度問題,透過上述做法可以獲得解決。

Aaron Lee

超過7年的 Google Cloud 經驗,服務過上百家 Google Workspace 與 GCP 客戶,擔任多次研討會主講人與教育訓練講師,提供架構諮詢與技術支援,幫助各大企業上雲。

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