Skip to content
Snippets Groups Projects

Scaled resolutions on Plasma 6 Wayland are incorrectly rotated by amdgpu on Legion Go

    • Open Issue created by Matthew Schwartz @matte-schwartz

    Brief summary of the problem:

    When choosing any scaled resolution in Plasma 6 Wayland on a Lenovo Legion Go, the resulting resolution is improperly rotated on the internal panel. The primary panel resolution is 1600x2560 (10:16) and is rotated by fbcon=rotate:3. If I select a scaled resolution, like 1280x800 (16:10), then the resulting scaled resolution takes up only 1/3rd of the display right in the middle of the panel. I will include a picture below.

    This was originally reported as a KWin issue, but a developer suggested I file a bug report here instead for this specific report.

    Hardware description:

    • CPU: AMD Z1 Extreme
    • GPU: Advanced Micro Devices, Inc. [AMD/ATI] Phoenix1 [1002:15bf] (rev 04)
    • System Memory: 16GB
    • Display(s): Internal panel, 1600x2560@144hz
    • Type of Display Connection: eDP

    System information:

    • Distro name and Version: SteamOS 3.7 and CachyOS
    • Kernel version: 6.8.12-valve5 (also tested 6.11.8 and behavior is identical)
    • Custom kernel: Valve Neptune / CachyOS
    • AMD official driver version: N/A
    • Plasma Version: 6.2.2, KWin Wayland

    How to reproduce the issue:

    On a Legion Go:

    1. Log into a Plasma 6 Wayland session
    2. In the Display & Monitor section, select any resolution that is not 1600x2560(10:16)

    Attached files:

    Screenshots/video files

    IMG_2343

    Log files (for system lockups / game freezes / crashes)

    • Full dmesg from 6.11.8 (I booted into gamescope-session, switched to desktop, and then changed the resolution from 1600x2560 -> 1280x800 in Plasma display settings: dmesg.log
    • Xorg log
    • Any other log

    Designs

      Child items ...

      2. Activity

      • Alex Deucher added DC Phoenix labels

        added DC Phoenix labels

      • Matthew Schwartz
        Matthew Schwartz @matte-schwartz ·
        Author 
        [    2.643906] amdgpu 0000:c2:00.0: [drm:update_display_info.part.0] [CONNECTOR:107:eDP-1] Assigning EDID-1.4 digital sink color depth as 8 bpc.
[    2.643908] [drm:__displayid_iter_next] base revision 0x12, length 43, 0 0
[    2.643909] amdgpu 0000:c2:00.0: [drm:update_display_info.part.0] [CONNECTOR:107:eDP-1] ELD monitor Go Display
[    2.643911] [drm:__displayid_iter_next] base revision 0x12, length 43, 0 0
[    2.643913] amdgpu 0000:c2:00.0: [drm:update_display_info.part.0] [CONNECTOR:107:eDP-1] ELD size 32, SAD count 0
[    2.643915] [drm:__displayid_iter_next] base revision 0x12, length 43, 0 0
[    2.643916] [drm:__displayid_iter_next] base revision 0x12, length 43, 0 0
[    2.643918] [drm:__displayid_iter_next] base revision 0x12, length 43, 0 0
[    2.643944] [drm:update_stream_scaling_settings [amdgpu]] Destination Rectangle x:0  y:0  width:1600  height:2560
[    2.644248] [drm:update_stream_scaling_settings [amdgpu]] Destination Rectangle x:0  y:0  width:1600  height:2560
[    2.644487] [drm:update_stream_scaling_settings [amdgpu]] Destination Rectangle x:0  y:680  width:1600  height:1200
[    2.644721] [drm:update_stream_scaling_settings [amdgpu]] Destination Rectangle x:0  y:680  width:1600  height:1200
[    2.644967] [drm:update_stream_scaling_settings [amdgpu]] Destination Rectangle x:0  y:680  width:1600  height:1200
[    2.645204] [drm:update_stream_scaling_settings [amdgpu]] Destination Rectangle x:0  y:830  width:1600  height:900
[    2.645440] [drm:update_stream_scaling_settings [amdgpu]] Destination Rectangle x:0  y:780  width:1600  height:1000
[    2.645671] [drm:update_stream_scaling_settings [amdgpu]] Destination Rectangle x:0  y:640  width:1600  height:1280
[    2.645903] [drm:update_stream_scaling_settings [amdgpu]] Destination Rectangle x:0  y:780  width:1600  height:1000
[    2.646188] [drm:update_stream_scaling_settings [amdgpu]] Destination Rectangle x:0  y:680  width:1600  height:1200
[    2.646402] amdgpu 0000:c2:00.0: [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:107:eDP-1] probed modes:
[    2.646405] amdgpu 0000:c2:00.0: [drm:drm_helper_probe_single_connector_modes] Probed mode: "1600x2560": 144 704990 1600 1660 1690 1820 2560 2590 2594 2690 0x48 0x5
[    2.646408] amdgpu 0000:c2:00.0: [drm:drm_helper_probe_single_connector_modes] Probed mode: "1600x2560": 60 704990 1600 1660 1690 1820 2560 6359 6363 6456 0x48 0x5
[    2.646411] amdgpu 0000:c2:00.0: [drm:drm_helper_probe_single_connector_modes] Probed mode: "1600x1200": 144 704990 1600 1660 1690 1820 1200 2590 2594 2690 0x40 0x5
[    2.646413] amdgpu 0000:c2:00.0: [drm:drm_helper_probe_single_connector_modes] Probed mode: "1280x1024": 144 704990 1280 1660 1690 1820 1024 2590 2594 2690 0x40 0x5
[    2.646416] amdgpu 0000:c2:00.0: [drm:drm_helper_probe_single_connector_modes] Probed mode: "1440x900": 144 704990 1440 1660 1690 1820 900 2590 2594 2690 0x40 0x5
[    2.646418] amdgpu 0000:c2:00.0: [drm:drm_helper_probe_single_connector_modes] Probed mode: "1280x800": 144 704990 1280 1660 1690 1820 800 2590 2594 2690 0x40 0x5
[    2.646421] amdgpu 0000:c2:00.0: [drm:drm_helper_probe_single_connector_modes] Probed mode: "1280x720": 144 704990 1280 1660 1690 1820 720 2590 2594 2690 0x40 0x5
[    2.646423] amdgpu 0000:c2:00.0: [drm:drm_helper_probe_single_connector_modes] Probed mode: "1024x768": 144 704990 1024 1660 1690 1820 768 2590 2594 2690 0x40 0x5
[    2.646426] amdgpu 0000:c2:00.0: [drm:drm_helper_probe_single_connector_modes] Probed mode: "800x600": 144 704990 800 1660 1690 1820 600 2590 2594 2690 0x40 0x5
[    2.646428] amdgpu 0000:c2:00.0: [drm:drm_helper_probe_single_connector_modes] Probed mode: "640x480": 144 704990 640 1660 1690 1820 480 2590 2594 2690 0x40 0x5

        This seems to be the relevant portion from my dmesg, it looks like it recognizes both 1600x2560 modes correctly and then the rest correspond with what I see visually as misrotated

      Please register or sign in to reply