Aw: Re: BUG: MTK DRM/HDMI broken on 5.13 (mt7623/bpi-r2)

From: Frank Wunderlich
Date: Thu Jul 08 2021 - 11:31:24 EST

> Gesendet: Donnerstag, 08. Juli 2021 um 11:35 Uhr
> Von: "Frank Wunderlich" <frank-w@xxxxxxxxxxxxxxx>
> i guess not, but is watchdog somehow involved? i ask because i see this on reboot/poweroff:
> "watchdog: watchdog0: watchdog did not stop!"
> i see this with my 5.13, 5.12-drm (5.12.0+mtk/core drm-patches) and 5.12.14 too (hdmi is working there), but not 5.12.0!
> that means something in drm-patches (mtk/core) breaks watchdog. maybe the recursion mentioned above?

have to correct me: 5.12.0 shows this error too, so error not caused by drm-patches, but i guess unrelated to the possible irq issue causing hdmi not working on 5.13 (wait-for-vblank/page_flip tracebacks)

i'm not aware who is also involved in the problem, so i want to avoid send people to the wrong way :)

regards Frank