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BSP Layers and Reference Images for Yocto Project Issue Tracker


The following table contains known issues, scheduled bug fixes, and feature improvements for the Toradex BSP Layers and Reference Images for Yocto Project. The tickets are split in two major states:

  • Submitted (open): new features and bug fixes for BSP versions that have not yet been released. They may be scheduled for a specific release version; not planned; or in our backlog. All of them have one of the following states:
    • Known Issue: a bug or unexpected behavior that has been reported and pending a fix. Once fixed, the status will transition to Fixed.
    • Feature Request: a new feature that may be added to a future release. Once released, the status will transition to New Feature.
  • Released (closed): new features and bug fixes for BSP versions that have already been released. All of them have one of the following states:
    • Fixed: a bug that has been fixed and released.
    • New Feature: something that didn't exist before and was added to a new release.

Any schedules are not guaranteed but reflect the current planning. The planning could be shifted due to priority changes.
Issues that are scheduled for a specific version will be integrated into the mentioned version of the BSP.

We will update this table continuously in order to always provide the latest state of our development plan.

Please see also the Linux Support Strategy to learn more about the different releases.

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Issue #StatusSubjectModuleSubsystemSeveritySubmitted for Mainline

5.4.0 (Release date: 2021-09-30)
Embedded Linux BSP Q3 2021 Quarterly Release. Learn more on
ELB-1419FixedParallel RGB Video Playback IssueColibri iMX8XRGB, VGA, Video CodecsLowNo

Description: Parallel RGB which is also what drives the RAM DAC towards the DVI-A or VGA ports on the Colibri Evaluation Board or Iris is using mxsfb-drm which currently fails g2d with the following error:
dpuv1/dpu_lib.c:197 open file error.
g2d_open: Init Dpu Handle fail !
It's currently unknown how one could play hardware accelerated videos without using g2d.

Workaround: Using LVDS or MIPI DSI as available via FFC connector on the back side of the module (e.g. also with the Colibri iMX8X DSI to HDMI Adapter) is using imx-drm which works fine.

5.3.0 (Release date: 2021-07-08)
Embedded Linux BSP Q2 2021 Quarterly Release. Learn more on
ELB-3939FixedParallel RGB on VGA Pixelclock Polarity Setting WrongColibri iMX8XRGBLowNo

Description: On the Parallel RGB output the pixelclock polarity setting is wrong for the VGA resolution.

Workaround: Manually Compile, Deploy and use latest Device Tree Overlays.

5.2.0 (Release date: 2021-04-08)
Embedded Linux BSP Q1 2021 Quarterly Release. Learn more on
ELB-3246New FeatureCreate Missing Display Overlays for Colibri iMX8X DownstreamColibri iMX8XCapacitive Touch, DSI, DVI, HDMI, Resistive Touch, RGB, VGALowNo

Description: Add missing display device tree overlays.

5.1.0 (Release date: 2020-12-30)
Dunfell Q4 2020 Quarterly Release. Learn more on
ELB-3271New FeatureDocument/Fix Display Interface DefaultsVerdin iMX8M Mini, Apalis iMX8X, Colibri iMX8X, Colibri iMX7, Colibri iMX6ULL, Apalis iMX6, Colibri iMX6, Apalis TK1, Apalis iMX8Graphics, HDMI, RGBLowNo

Description: Make sure to document on our developer website which display interfaces are used by default.

3.0.4 (Release date: 2020-04-21)
LTS release. Learn more on
ELB-1339New FeatureDocument i.MX8X Series Based SoM Display ConfigurationColibri iMX8X, Apalis iMX8HDMI, RGBLowNo

Description: Amend i.MX8 content to

3.0b3 (Release date: 2019-12-31)
This release supports Verdin iMX8M Mini, Apalis TK1, Apalis iMX6, Apalis iMX8, Colibri iMX6, Colibri iMX6ULL, Colibri iMX7 and Colibri iMX8X. Learn more on
ELB-1286New FeatureParallel RGB Weston DRM Backend IssueColibri iMX8XRGBLowNo

Description: With parallel RGB Weston currently only works with the fbdev backend rather than the regular DRM one.

Workaround: Add the following to OPTARGS in your /etc/default/weston configuration file:
-B --use-pixman

3.0b2 (Release date: 2019-08-30)
This release supports Apalis TK1, Apalis iMX6, Apalis iMX8, Colibri iMX6, Colibri iMX6ULL, Colibri iMX7 and Colibri iMX8X in addition to Apalis iMX8QM V1.0B. See more at
ELB-1820New FeatureParallel RGB Display SupportColibri iMX8XRGBLowNo

Description: Support parallel RGB displays

Not Planned
ELB-3219Known IssueArtifacts on the Left of Parallel RGB ScreenColibri iMX8XGraphics, RGBLowNo

Description: We saw minor artifacts in the form of approximately 5mm long grey 1px high bars that are randomly blink on the left side of the screen. This issue depends on if either &display_lcdif or &adma_lcdif in device tree.

ELB-1261Feature RequestFramebuffer Video SupportApalis iMX8X, Colibri iMX8X, Apalis iMX8Bootloader, Graphics, HDMI, LVDS, RGB, VGALowNo

Description: Mainline U-Boot for the i.MX 8/8X currently lacks framebuffer video support.

ELB-2676Known IssueOpenGL Stuttering (e.g. using glmark2)Colibri iMX8XRGBLowNo

Description: Blitting/stuttering animated pictures in glmark2 are being observed on LCDIF, also known as the parallel RGB output with Colibri iMX8DX. It works just fine either using the DSI-to-HDMI adapter or a Colibri iMX8QXP.

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Issue #StatusSubjectModuleSubsystemSeveritySubmitted for Mainline

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