fix: select connected DRM card for KMSCube #430
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abbajaj806 merged 2 commits intoqualcomm-linux:mainfrom Apr 29, 2026
Merged
fix: select connected DRM card for KMSCube #430abbajaj806 merged 2 commits intoqualcomm-linux:mainfrom
abbajaj806 merged 2 commits intoqualcomm-linux:mainfrom
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Refer the job with these changes: https://lava.infra.foundries.io/scheduler/job/189609 |
bhargav0610
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Apr 29, 2026
Add display_select_primary_drm_device() to map the selected connected DRM connector to its owning /dev/dri/cardN device. This allows DRM/KMS tests to avoid relying on application-side default card selection on systems with multiple DRM cards. Signed-off-by: Srikanth Muppandam <smuppand@qti.qualcomm.com>
Update KMSCube to use the DRM card selected from the connected sysfs connector instead of relying on kmscube default device selection. On multi-card systems, kmscube may auto-open a card without a connected connector and fail with "no connected connector!" even when a monitor is attached to another card. The test now maps the connected connector to /dev/dri/cardN and passes it to kmscube with -D, while preserving the existing fallback behavior when the card cannot be resolved. Signed-off-by: Srikanth Muppandam <smuppand@qti.qualcomm.com>
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Fixes #420
This PR fixes KMSCube failures on multi-DRM-card platforms where a valid display is connected but kmscube still fails with:
no connected connector!
failed to initialize legacy DRM
Why this PR is needed: