Administrator Guide

Go to System Setup > Display > General, and do the following:
1. Change resolution from DDC table or User defined display settings.
2. Change rotation setting from User defined display settings.
When the display settings are changed during active sessions, the active sessions do not resize dynamically in the following
situations:
● Seamless sessions
● For dual head mode, including:
○ Change from single mode to dual head.
○ Change from dual head to single mode.
○ Change display setting in dual head mode.
To apply the settings, disconnect the session and reconnect it.
Vertical Synchronization
Vertical Synchronization or V-Sync enables the ThinOS client to synchronize the frame rate of a video with the monitor refresh
rate to avoid screen tearing. Screen tearing occurs when the graphic processor delivers display frames more than your monitor
can process. As a result, the image appears to be cut in half. Enabling VSync synchronizes the output video of the graphics card
to the refresh rate of the monitor.
Limitation
The ThinOS client desktop background flashes for a second when the RDP session desktop is connected with H.264- AVC444
enabled.
Dell Docking Station WD19
The Wyse 5470 Thin Client supports the Dell Docking Station WD19. The Dell Docking Station WD19 is a device that links all
your electronic devices to your thin client using a USB Type-C cable interface. Connecting the thin client to the docking station
enables you to access all peripherals (mouse, keyboard, stereo speakers, external hard drive, and large-screen displays) without
having to plug each one into the thin client.
ThinOS supports the Wake-on-LAN feature over the Dell Docking Station WD19 to wake up thin clients from sleep mode or the
shutdown state. To use this feature, you must add the INI parameter wakeonusb=yes.
Limitations
● USB Type-C and HDMI ports on Dell Docking Station WD19 are mutually exclusive.
● Supports one Quad HD display at 30 Hz and two Full HD displays at 60 Hz.
● If two displays with resolution greater than 1920 x 1080 are connected simultaneously, only one display works. You must
change the resolutions to 1920 x 1080 or lower to make both displays work.
Upgrade docking station firmware using ThinOS
You can update the Dell Docking Station WD19 firmware in a VDI session on ThinOS.
To upgrade the docking station firmware, do the following:
1. Connect the AC adapter to a power outlet. Then, connect the AC adapter to the 7.4 mm DC-in power input on the Dell
Docking Station WD19.
2. Connect the USB Type-C connector to the thin client.
3. Launch a VDI session. By default, the dock is redirected to a VDI session.
4. Download the Dock Firmware Update Utility from www.dell.com/support.
5. Start the tool.
6. Wait for all the information to be entered in the various Graphical User Interface (GUI) panes.
7. Click the Update button.
For more information about the Docking Station, see the Dell Docking Station WD19 User's Guide at www.dell.com/manuals.
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Configuring local settings