Hi, Am 28.03.21 um 07:58 schrieb Ryutaroh Matsumoto: >> I think the root cause of this issue is that both vc4.ko and snd_bcm2835.ko >> try to provide ALSA sinks to HDMI audio outputs from RPi. >> Why do the two drivers provide the same functionality for the same device? >> It seems nonsense. >> There must be some coordination between vc4.ko and snd_bcm2835.ko >> on who provides ALSA sinks of RPi HDMI output. > Giving "enable_hdmi=0" to snd_bcm2835.ko does not improve the situation, > while module_blacklisting snd_bcm2835 suppresses all the symptoms reported. > snd_bcm2835.ko in 5.10.24 seems having a bug ignoring "enable_hdmi=0". i assume you set this option in the config.txt? This shouldn't have any affect for the mainline kernel / DT. > > Best regards, Ryutaroh _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
