BootExperienceProject

Karmic Boot Experience as of 2009-08-03

This is the current experience. This is not the target experience, but represents the state between the Jaunty and Karmic boot experiences.

UI

Transition

BIOS

Blinking Cursor on black screen

GRUB 2.0

Blinking Cursor on black screen, perceptible mode switch/flicker

Usplash throbber

Real Black, Mouse cursor spins

GDM:
Fades in desktop Background
Paints Frame
Fills in Users
User Interacts

GDM Vanishes, leaves black blocks

Desktop:
Spinning Cursor
Panel paints
flips to wallpaper

Target Karmic Boot Experience

There are three target experiences in scope for Karmic:

  1. A typical boot, that includes the user logging in
  2. Automatic login
  3. Karmic boot with an exception (encrypted directory or time out)

The following related experiences are not in scope for Karmic:

  1. Boot with OS switching
  2. Enhanced user switching experience
  3. Enhanced suspend/resume experience - already improved by recent kernel improvements
  4. Enhanced hibernate/resume experience; reason: requires further kernel cleanups + issue with switching resolution between the boot and the resumed kernel
  5. Shutdown experience - will keep on using usplash
  6. Restart experience when switching OSs; reason: depends on the shutdown experience being improved

Work Item Priorities

Priority

Definition

P0

Essential

P1

Very Important - will do

P2

Important - Will do

P3

Desirable - Want to do

Work Item Summary

The following work items that remain in Karmic have been identified:

Priority

Work Item

Team

Difficulty

Description

P0

Clean up grub

Foundations

Easy

Done

P1

Disable blinking cursor in grub

Foundations

Easy

Done

P0

Disable grub menu

Foundations

Easy

Done

P0

Design XSplash

Design

Easy

Note: need to send example assets to Cody

P0

Xsplash boot throbber

DX

Medium

P1

Xorg patch for leaving the frame buffer in place

Desktop

Medium

P1

Disable mouse cursor on x start

Desktop

Easy

P1

Recommend xinit hook for xsplash

Desktop

Easy

P2

GDM Done Painting Signal

DX

Hard

send a dbus-signal when gdm is done loading, ie widgets mapped on screen

P1

Desktop Done Painting Signal

Desktop

Medium

send a dbus-signal when gnome-session has finished loading the user desktop

P3

GDM Perf

Desktop

Hard

P0

Designing GDM skinning

Design

Done

P1

Skinning GDM

DX

Medium

P3

GDM UI Layout

DX

Medium

P0

Xsplash desktop curtain (autologin case)

DX

Medium

P2

Xsplash gdm greeter curtain - throbber while logging, especially for login

DX

Medium

P3

Compiz perf

Desktop

Medium

P0

Usplash Design

Design

Easy

P0

Implement New Usplash Theme

Design

Medium

Typical Boot

This assume the user is booting into Ubuntu, and will log in with GDM.

UI

Transition

Work Items ((Team) priority/difficulty)

BIOS

Flip to Black
Mode switch

Cleanup Grub(Foundations)P0/Easy
Disable blinking cursor in grub(Foundations)P1/Easy
Disable grub menu(Foundations)P0/Easy

XSplash (Fade in)

Fades into Login Screen

Design XSplash (Design)P0/Easy
Write Xsplash(DXE)P0/Medium
Write OS Switcher(DXE)P3/Hard
Write OS Switcher library(DXE)P3/Hard
Disable mouse cursor on x start(Desktop)P1/Easy

GDM: Fades in
User interacts

Fades to Xsplash progress indicator

GDM Curtain (Desktop)P2/Hard
GDM Perf (Desktop)P2/Hard
GDM Skinning (Design)P1/Medum
GDM UI Layout (DXE)P3/Medium
GDM Fade Out (Desktop)P2/Hard
XSplash Curtain (DXE) P2/Medium

Xsplash progress

Xsplash Curtain (DXE)P2/Medium

Desktop (Fades in)

Compiz Curtain (Desktop)P1/Hard

Karmic Boot with Auto Login

This scenario is the same as the typical Karmic boot with Login, but lacks the GDM row. No new work items result from this, though there is a dependency on xsplash to transition directly to logon progress.

Karmic Boot with Exceptions

This occurs when:

  1. The user has an encrypted root file system
  2. The user has an encrypted non-Root File System
  3. An fsck is required
  4. Something causes a timeout, such as a very slow USB device is attached

In these cases usplash is used to provide user feedback instead of X. This is because while X is loaded, it more or less owns the hardware, and this handles the situation where X cannot load or cannot load quickly. This starts after the BIOS:

UI

Transition

Work Items

|| usplash:
Fades in with appropriate UI
User interacts if necessary || Fade to XSplash || Usplash Design (Design) P0/Easy
Impliment New Usplash Theme(Design) P1/Medium
leave the frame buffer in place (Desktop)P1/Medium

DesktopExperienceTeam/BootExperienceProject (last edited 2009-09-09 16:34:01 by robbie.w)