DSI and eDP panel can't rotate screen to flipped.

[Jian Hui Lee]

[Summary]
The Builtin panel (DSI and eDP) can't rotate screen to landscape(flipped) from Gonme-Control-Center (GCC), and both of them switched to Portrait Right/Left without any problem.
Once switched to landscaped(flipped), the screen still show landscape (normal) but the touch button area is already switched to flipped.
Image if the screen is already flipped, and touch the "Revert Settings" button.

The touch part is already flipped but the graphic didn't flipped.

On the same machine the external HDMI monitor can switch Portrait Right/Left and andscape(flipped) without any problem.

dtbo: gpu-mali.dtbo video.dtbo apusys.dtbo display-dsiedphdmi.dtbo

[Steps to reproduce]
1. Boot in OS
2. Open the GCC -> Display -> (select which monitor you want to do orientation) -> switch to landscape(flipped)

[Expected result]
Both DSI and eDP pannel rotate screen to flipped without any issue.

[Actual result]
screen stays the same orientation.

LP: #2098837

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

This bug is awaiting verification that the linux-mtk/5.15.0-1037.44 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-mtk' to 'verification-done-jammy-linux-mtk'. If the problem still exists, change the tag 'verification-needed-jammy-linux-mtk' to 'verification-failed-jammy-linux-mtk'.

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!

[Jian Hui Lee (jianhuilee)]

verified pass with the 1037 kernel in proposed by changing the orientation to Portrait Right/Left and landscape(flipped) mode on the following devices:
1. g1200 dsi, hdmi
2. g510 dsi, edp

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux-mtk - 5.15.0-1037.44

---------------
linux-mtk (5.15.0-1037.44) jammy; urgency=medium

  * jammy/linux-mtk: 5.15.0-1037.44 -proposed tracker (LP: #2099348)

  * DSI and eDP panel can't rotate screen to flipped. (LP: #2099371)
    - drm/mediatek: Add support for 180-degree rotation in the display driver

 -- Jian Hui Lee <email address hidden> Fri, 21 Feb 2025 10:48:36 +0800