Startup crash

befranky · January 31, 2022 at 4:08 PM

Hi all. I've a fresh install of LibreELEC latest release 10.0.1 over a Raspberry Pi4 4GB. The device is connected to a samsung au7170 55" with resolution configured at 4K 24p. Often the system isn't able to boot. The system crash while the display show the LibreELEC image. After some reboot I'm able to enter Kodi and then all works fine. Looking at the debug files the crash seems to involve always KODI::WINDOWING::GBM::CDRMUtils::SetMode

"Program terminated with signal SIGSEGV, Segmentation fault.

#0 0x00981c68 in KODI::WINDOWING::GBM::CDRMUtils::SetMode(RESOLUTION_INFO const&) ()"

Here a full crash log:

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Here a correct startup:

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Any help is appreciated.

Franco.

**chewitt** · February 2, 2022 at 3:07 AM

Enable "Adjust refresh" and configure the whitelist for 1080@60/59.94/50/24/23.976 and 4K@60/59.94/50/30/29.97/25/24/23.976 and set the Kodi desktop to 1080p@60. Read https://wiki.libreelec.tv/configuration/4k-hdr

befranky · February 3, 2022 at 10:29 AM

Thanks for the answeer, the settings you suggested were already configured. However maybe I've found something. Looking at the differences between the good log and the bad one, the problem seems to start after:

2022-01-31 12:57:49.389 T:887 DEBUG <general>: CWinSystemGbm::InitWindowSystem - initialized DRM

2022-01-31 12:57:49.389 T:887 WARNING <general>: CWinSystemGbm::UpdateResolutions - Failed to get resolutions

I tried configuring config.txt with the lines:

hdmi_group=1
hdmi_mode=16

and the first tests are positive.

Startup crash

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