RPI3 on LIBREELEC 11 does not work on HDMI-DVI cable anymore

Hi,

my RPI3 used to work flawlessly on LIBREELEC 9 on a monitor connected through an HDMI-DVI cable.

Until I migrated to LE 11, that is.

I have tried 2 different monitors (native resolution 1600x1200@60) with different results.

On a dell monitor I get a blank screen and the following error on the log:

CDRMUtils::OpenDrm - drm devices found: 1
CDRMUtils::FindConnector - failed to find connected connector
CWinSystemGbm::InitWindowSystem - failed to initialize Atomic DRM
CDRMUtils::OpenDrm - drm devices found: 1
CDRMUtils::FindConnector - failed to find connected connector
CWinSystemGbm::InitWindowSystem - failed to initialize Legacy DRM
CDRMUtils::OpenDrm - drm devices found: 1
CDRMUtils::OpenDrm - opened device: /dev/dri/card0
CDRMUtils::PrintDrmDeviceInfo - DRM Device Info:
available_nodes: 0x05
nodes:
nodes[0]: /dev/dri/card0
nodes[2]: /dev/dri/renderD128
bustype: 0x02
platform:
fullname: /soc/gpu
CDRMUtils::OpenDrm - opened render node: /dev/dri/renderD128

All the rest seems to be working, and I can control KODI via SSH or YATSE.

I have tried to manually set different resolutions in the /boot/cmdline.txt

and increase the HDMI signal level with CONFIG_HDMI_BOOST file to no avail.

On the second monitor (a V7) I get a different behavior.

There I get the following error:

CDRMUtils::SetMode - found crtc mode: 1600x1200 @ 60 Hz
debug <general>: EGL Debugging:

Error: EGL_BAD_SURFACE
Command: eglSwapBuffers
Type: EGL_DEBUG_MSG_ERROR_KHR
Message: dri2_swap_buffers

A starting screen does appear on the monitor, but it is frozen.

I can still connect through SSH, though.

Connecting a normal TV via a plain HTML cable works just fine.

As I said, everything worked fine on LE9. Any ideas?

Thanks