defconfigs: Drop FB_UDL from all Pi defconfigs #5702
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CONFIG_FB_UBL is the fbdev driver for DisplayLink USB displays. CONFIG_UDL is the DRM driver for DisplayLink USB displays. Both attach themselves to the same USB device alias, so both get loaded for any attached display. You now have 2 drivers for the same hardware, and a race as to which one will load. DRM emulates the framebuffer interface, so disable the fbdev driver. raspberrypi/bookworm-feedback#133 Signed-off-by: Dave Stevenson <[email protected]>
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kernel: KMS stale dlist alloc changes See: raspberrypi/linux#5684 kernel: drm/vc4: crtc: Support odd horizontal timings on BCM2712 See: raspberrypi/linux#5679 kernel: spi: dw-dma: Get the last DMA scoop out of the FIFO See: raspberrypi/linux#5699 kernel: defconfigs: Drop FB_UDL from all Pi defconfigs See: raspberrypi/linux#5702 kernel: RP1 GPIO header SDIO support See: raspberrypi/linux#5704 kernel: ASoC: bcm: audioinjector_octo: Add soundcard owner See: raspberrypi/linux#5705 kernel: drivers: media: imx708: Tweak broken line correction parameter See: raspberrypi/linux#5701
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kernel: KMS stale dlist alloc changes See: raspberrypi/linux#5684 kernel: drm/vc4: crtc: Support odd horizontal timings on BCM2712 See: raspberrypi/linux#5679 kernel: spi: dw-dma: Get the last DMA scoop out of the FIFO See: raspberrypi/linux#5699 kernel: defconfigs: Drop FB_UDL from all Pi defconfigs See: raspberrypi/linux#5702 kernel: RP1 GPIO header SDIO support See: raspberrypi/linux#5704 kernel: ASoC: bcm: audioinjector_octo: Add soundcard owner See: raspberrypi/linux#5705 kernel: drivers: media: imx708: Tweak broken line correction parameter See: raspberrypi/linux#5701
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CONFIG_FB_UBL is the fbdev driver for DisplayLink USB displays. CONFIG_UDL is the DRM driver for DisplayLink USB displays.
Both attach themselves to the same USB device alias, so both get loaded for any attached display. You now have 2 drivers for the same hardware, and a race as to which one will load.
DRM emulates the framebuffer interface, so disable the fbdev driver.
raspberrypi/bookworm-feedback#133