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GMUX #2

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12 of 18 tasks
Redecorating opened this issue Mar 3, 2023 · 1 comment
Open
12 of 18 tasks

GMUX #2

Redecorating opened this issue Mar 3, 2023 · 1 comment
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Redecorating commented Mar 3, 2023 •
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Graphics Multiplexer on dual GPU models.

  • Read and Write to gmux ports
  • Backlight control
  • Switching Display between GPUs
    • To preserve state after resume (so you can resume properly when using the igpu!)
    • At runtime with vga_switcheroo
      • Make amdgpu register with vga_switcheroo
      • Make intel card register with vga_switcheroo
    • Get the switched to GPU to output to the display
  • Interrupts
  • Power up/down dGPU
  • Update internal documentation
  • Test on other T2 models once everything should be working
  • Ensure these changes don't cause regressions for pio and indexed models.

https://lore.kernel.org/platform-driver-x86/[email protected]/
@Redecorating Redecorating self-assigned this Mar 3, 2023
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v4: https://lore.kernel.org/platform-driver-x86/[email protected]/

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