The eDP OLED panel has no output on MTL platform

[AceLan Kao]

[Impact]
We got a blank screen when boot into the system with OLED panel.

[Fix]
Intel provides a patch to fix this
https://patchwork.freedesktop.org/patch/570622/?series=127194&rev=2

Which is in drm-intel-next currently
3072a24c778a drm/i915: Introduce crtc_state->enhanced_framing

which is included in v6.7-rc6
e6861d8264cd drm/i915/edp: don't write to DP_LINK_BW_SET when using rate select

[Test case]
1. Install Ubuntu 22.04 on the system with 6.5+ kernel
2. Check the screen display normally

[Where problems could occur]
The eDP panel support v1.4 and later may fail if it require the non-standard DP_LINK_BW_SET.

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This bug is awaiting verification that the linux-oem-6.5/6.5.0-1010.11 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-jammy-linux-oem-6.5' to 'verification-done-jammy-linux-oem-6.5'. If the problem still exists, change the tag 'verification-needed-jammy-linux-oem-6.5' to 'verification-failed-jammy-linux-oem-6.5'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux-oem-6.5 - 6.5.0-1011.12

---------------
linux-oem-6.5 (6.5.0-1011.12) jammy; urgency=medium

  * jammy/linux-oem-6.5: 6.5.0-1011.12 -proposed tracker (LP: #2047946)

  * [needs-packaging] usbio-drivers (LP: #2041800)
    - SAUCE: usbio-drivers: import intel-usbio-dkms source
    - debian/dkms-versions -- build usbio-drivers from the in-tree copy

  * Support standalone dkms source tree embedded in kernel source (LP: #2047909)
    - [Packaging] dkms-build -- support in-tree dkms source directory

  * jammy-oem-6.5: one more panel needs to disable psr2 (LP: #2046681)
    - SAUCE: drm/i915/display/psr: disable psr2 for panel_0x4d_0x10_0x8f_0x15

 -- Timo Aaltonen <email address hidden> Wed, 03 Jan 2024 21:03:45 +0200

[AceLan Kao (acelankao)]

Mantic(6.5.0-27.28) got the fix through upstream stable update.