vc4: HDMI Sink doesn't support RGB, something's wrong.

[Dave Stevenson]

Hi Stefan.

On Sun, 13 Oct 2024, 18:19 Stefan Wahren, <wahrenst at gmx.net> wrote:

> Hi,
>
> i recently switch for my suspend2idle tests from Raspberry Pi Bullseye
> to Bookworm. After that testing suspend2idle shows a new warning which i
> never saw before:
>
> HDMI Sink doesn't support RGB, something's wrong.
>

Can you provide the edid of your display please?

The last time I saw this type of error was when using the now removed built
in edids that were declaring the display as analog rgb. That dropped out
part way through the edid parsing and didn't set the flag for rgb support.

  Dave


> Platform: Raspberry Pi 3 B+
> Kernel: 6.12-rc1
> Kernel config: arm/multi_v7_defconfig
>
> I applied this downstream patch [1], but this doesn't help. Any ideas?
>
>
> [1] -
>
> https://github.com/raspberrypi/linux/commit/2559eae8cf2c060c7bb873209792077f20414fac
>
> [  272.263134] PM: suspend entry (s2idle)
> [  272.983317] Filesystems sync: 0.720 seconds
> [  273.248665] Freezing user space processes
> [  273.250547] Freezing user space processes completed (elapsed 0.001
> seconds)
> [  273.250574] OOM killer disabled.
> [  273.250579] Freezing remaining freezable tasks
> [  273.251774] Freezing remaining freezable tasks completed (elapsed
> 0.001 seconds)
> [  274.267355] ieee80211 phy0: brcmf_fil_cmd_data: bus is down. we have
> nothing to do.
> [  274.267372] ieee80211 phy0: brcmf_cfg80211_get_tx_power: error (-5)
> [  290.989948] brcmfmac: brcmf_fw_alloc_request: using
> brcm/brcmfmac43455-sdio for chip BCM4345/6
> [  291.127611] brcmfmac: brcmf_c_process_txcap_blob: no txcap_blob
> available (err=-2)
> [  291.127974] brcmfmac: brcmf_c_preinit_dcmds: Firmware: BCM4345/6 wl0:
> Apr 15 2021 03:03:20 version 7.45.234 (4ca95bb CY) FWID 01-996384e2
> [  291.193655] OOM killer enabled.
> [  291.193674] Restarting tasks ... done.
> [  291.195010] random: crng reseeded on system resumption
> [  291.203671] PM: suspend exit
> [  291.209085] lan78xx 1-1.1.1:1.0 eth0: Link is Down
> [  291.243499] vc4-drm soc:gpu: [drm] HDMI Sink doesn't support RGB,
> something's wrong.
> [  291.270561] vc4-drm soc:gpu: [drm] HDMI Sink doesn't support RGB,
> something's wrong.
> [  291.336887] vc4-drm soc:gpu: [drm] HDMI Sink doesn't support RGB,
> something's wrong.
> [  293.637295] lan78xx 1-1.1.1:1.0 eth0: Link is Up - 1Gbps/Full - flow
> control rx/tx
>
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