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Affected Products: OptiPlex 3000 Thin Client The screen on an OptiPlex 3000 Thin Client (TC) flickers for half a second during the handover from the BIOS to the Ubuntu operating system.
Loading the Intel graphics driver causes this issue. A mode setting transition causes the flash for less than a second, due to the inherited frame buffer not handled properly by Intel graphics.
To correct the flicker issue, run an online kernel update with the following steps: With the computer booted to Ubuntu and connected to the Internet, launch the Terminal with CTRL + ALT + t.Run sudo apt-get update and wait for the update to complete.Run sudo apt-get install linux-oem-20.04c, and press Enter key to continue.Wait for the kernel update to complete and then reboot the computer.Open the Terminal again, and run $uname -a (to check that the updated kernel version becomes 5.13.0-1017-oem.
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