[fritsch]

@fritsch 

hey man, just followed your guide in terms of fixed edid, seems to be working fine according to dmesg output:

---
[    0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-4.15.0-23-generic root=UUID=c3120b2b-f0e8-41e1-98f0-cdb7205663a1 ro quiet splash video=DP-3:1920x1080@50D drm_kms_helper.edid_firmware=DP-3:edid/edid.bin vt.handoff=1
[    0.000000] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-4.15.0-23-generic root=UUID=c3120b2b-f0e8-41e1-98f0-cdb7205663a1 ro quiet splash video=DP-3:1920x1080@50D drm_kms_helper.edid_firmware=DP-3:edid/edid.bin vt.handoff=1
[    1.212925][drm] drm_kms_firmware.edid_firmware is deprecated, please use drm.edid_firmware intead.
[    1.655070][drm] Got external EDID base block and 1 extension from "edid/edid.bin" for connector "DP-3"
[    1.948448][drm] Got external EDID base block and 1 extension from "edid/edid.bin" for connector "DP-3"
[    2.253386][drm] Got external EDID base block and 1 extension from "edid/edid.bin" for connector "DP-3"
[    3.646102][drm] Got external EDID base block and 1 extension from "edid/edid.bin" for connector "DP-3"
[    4.741728][drm] Got external EDID base block and 1 extension from "edid/edid.bin" for connector "DP-3"
----

Just regarding that one message in terms of drm_kms_helper.... deprecated. Should I update the grub command line to drm.edid_firmware something ... ?

thanks,

boba

 Yes. Take care that in "later version" of the kernel video in combination with drm_kms or drm.edid_firmware is sadly broken :-( - in short: choose what works.