On 06/26/2016 04:00 AM, Jan Engelhardt wrote:
On Saturday 2016-06-25 23:16, Roman Bysh wrote:
Does anyone know how to suppress the annoying flashing cursor at the top-left corner of the screen - just before plymouth starts up?
I would like to submit a bug report. Is this systemd?
One can come up with ample opportunities where splash flickering _could_ occur.
* bootloader switching back from graphics mode to text after loading, but before running, the kernel.
* when switching drivers at runtime (X11 usermode switching; kernel driver switch e.g. vesafb->someother.)
* kernel and firmware having a different idea of what to show. If the firmware just clones the boot console to all attached monitors, when the kernel loads its own driver, it may default to no cloning. Or vice-versa: boot console is just shown on one monitor, and loading the kernel graphic driver will clone.
* hardware initiating a screen content reset on switching display parameters (like frequency, outputs) even if resolution stays the same
* firmware messing with the graphics buffer between bootloader and kernel running even if loader and kernel themselves are in harmony. (VMware Workstation exhibited this visibly by showing red/green striped lines when booting the SUSE CD when I last used VMW some 10 years ago)
Hhm.. Where to start. It begins flashing at a steady rate after you press the <enter> key at the Grub2 menu selection and it starts flashing faster just before the plymouth splash appears.