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Graphics beyondthe main compositor

“Happy Place”

● no complex hardware● trivial software rendering● no external vendor libraries● no timing issues

“Happy Place”

● no complex hardware● trivial software rendering● no external vendor libraries● no timing issues

..so I was told.

   Firmware

BOOT

Kernel

PLY

systemd­logind

PLY

Login Manager

Desktop Environment

System Console

   Firmware

BOOT

Kernel

PLY

systemd­logind

PLY

Login Manager

Desktop Environment

System Console

Hide!

Functionality vs. Eye­candy

● “Branding” / eye­candy● Passwords / Options● Debugging / Error handling

Branding

● Distraction, not attraction

Branding

● Distraction, not attraction● Branding is crucial

Debugging / Error­Handling

● Universal Console + System­log

Debugging / Error­Handling

● Universal Console + System­log● drmlog

● Multi­column● Integer scaling● Atomic modesetting

Debugging / Error­Handling

● Universal Console + System­log● drmlog● systemd­emergencyd● systemd­consoled

User­Interaction

● polkit et. al.

User­Interaction

● polkit et. al.– SAK

Challenges

“Every frame is perfect”(wayland style)

“Every frame is perfect”(wayland style)BROKEN

software­rendering

software­renderingDONE

hardware­handover

hardware­handoverDONE

Multi GPU

Multi GPUDONE

Internationalizationand

Accessibility

Internationalizationand

AccessibilityPARTLY

Global Hotkeys

Global Hotkeys

BROKEN

Non KMS?