Still testing with Kubuntu raring daily iso of 2013-04-19 running as live system:
No message on shutdown on Samsung R55 when "16bit debug override" is enabled in /lib/plymouth/themes/kubuntu-logo/kubuntu-logo.script (uncommented line // Window.GetBitsPerPixel = fun() { return 4; };) (tried once).
No message on shutdown on Samsung NC10 with non-modified theme files (using default kubuntu-logo theme with glowing "Kubuntu" logo being shown) (tried once).
Still testing with Kubuntu raring daily iso of 2013-04-19 running as live system:
No message on shutdown on Samsung R55 when "16bit debug override" is enabled in /lib/plymouth/ themes/ kubuntu- logo/kubuntu- logo.script (uncommented line // Window. GetBitsPerPixel = fun() { return 4; };) (tried once).
No message on shutdown on Samsung NC10 with non-modified theme files (using default kubuntu-logo theme with glowing "Kubuntu" logo being shown) (tried once).