Garbage output on HDMI

Stefan Wahren stefan.wahren at
Fri Jan 13 10:33:11 PST 2017


i'm still using a Raspberry Pi B with latest firmware, latest U-Boot (second stage bootloader) and mainline kernel (tested 4.4, 4.8, 4.9). If i connect the Pi via HDMI i only get a garbage output [1] with the combination above. But the system works as expected if i connect via debug UART.

If i replace u-boot with the vendor kernel instead everything is displayed on HDMI as expected.

Any ideas what is the problem? I know it worked before.

[1] -

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