Am 14.10.24 um 12:54 schrieb Dave Stevenson:
On Mon, 14 Oct 2024 at 10:04, Maxime Ripard <mripard@xxxxxxxxxx> wrote:
Hi,
On Sun, Oct 13, 2024 at 09:57:58PM GMT, Stefan Wahren wrote:
Am 13.10.24 um 21:11 schrieb Dave Stevenson:
Hi Stefan.
On Sun, 13 Oct 2024, 18:19 Stefan Wahren, <wahrenst@xxxxxxx> 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 failure is coming from sink_supports_format_bpc()[1], but the flag
for DRM_COLOR_FORMAT_RGB444 should have been set from
update_display_info()[2] parsing the EDID.
Loading that EDID in via drm.edid_firmware has given me a console at
1920x1200@60 without any issues, so I'm a little confused as to what
is going on.
Since this warning only occurs on resume and not during normal boot, i
would assume there is no issue with EDID. Maybe the flag get lost. I
should have mention that X11 doesn't recover in this case and the
display stays black.
Dave
[1] https://elixir.bootlin.com/linux/v6.12-rc2/source/drivers/gpu/drm/display/drm_hdmi_state_helper.c#L130
[2] https://elixir.bootlin.com/linux/v6.12-rc2/source/drivers/gpu/drm/drm_edid.c#L6669
