07-30-2021, 01:36 AM
Hello
i am using Lenovo ThinkPad 40A9 dock for my daily driver Lenovo E595. I thought to test it with pinebook, but result was mixed, as i've described here.
Today i've returned to seek for rootcause, and what i came with, was this message
Jul 21 02:21:04 pinebook kernel: cdn-dp fec00000.dp: Direct firmware load for rockchip/dptx.bin failed with error -2
when dock was plugged.
I've started to connecting dots: firmware was present in /usr/lib/firmware, but yet somehow it was invisible for rockchipdrm module. After some tinkering, i've modified a file
[root@pinebook etc]# sdiff -s mkinitcpio.conf mkinitcpio.conf_20210730
FILES=(/usr/lib/firmware/rockchip/dptx.bin) | FILES=()
regenerated my initrd and verified that file is actually included before rootfs gets mounted, so exactly when it's needed.
After reboot, somewhat success - no errors about missing firmware ,yet no image after connecting to dock, despite both plugs orientations
kernel says
[ 26.816477] cdn-dp fec00000.dp: [drm:cdn_dp_pd_event_work [rockchipdrm]] Not connected. Disabling cdn
Is there anything else that i can do/ mess with/ try? i really am into docking Pinebook to my existing dock, as i have already nicely set up my desk and buying another "maybye compatible one" is missing my point.
my kernel: 5.13.4-1-MANJARO-ARM, vanilla from repo (yet i don't see a problem to recompile if needed, Gentoo fan here ;d)
i am using Lenovo ThinkPad 40A9 dock for my daily driver Lenovo E595. I thought to test it with pinebook, but result was mixed, as i've described here.
Today i've returned to seek for rootcause, and what i came with, was this message
Jul 21 02:21:04 pinebook kernel: cdn-dp fec00000.dp: Direct firmware load for rockchip/dptx.bin failed with error -2
when dock was plugged.
I've started to connecting dots: firmware was present in /usr/lib/firmware, but yet somehow it was invisible for rockchipdrm module. After some tinkering, i've modified a file
[root@pinebook etc]# sdiff -s mkinitcpio.conf mkinitcpio.conf_20210730
FILES=(/usr/lib/firmware/rockchip/dptx.bin) | FILES=()
regenerated my initrd and verified that file is actually included before rootfs gets mounted, so exactly when it's needed.
After reboot, somewhat success - no errors about missing firmware ,yet no image after connecting to dock, despite both plugs orientations
kernel says
[ 26.816477] cdn-dp fec00000.dp: [drm:cdn_dp_pd_event_work [rockchipdrm]] Not connected. Disabling cdn
Is there anything else that i can do/ mess with/ try? i really am into docking Pinebook to my existing dock, as i have already nicely set up my desk and buying another "maybye compatible one" is missing my point.
my kernel: 5.13.4-1-MANJARO-ARM, vanilla from repo (yet i don't see a problem to recompile if needed, Gentoo fan here ;d)
