How do I disable edid check on kernel command line?

Flash flashl at
Wed Jul 2 14:19:58 UTC 2014

Not Deja vu, per se. Found solution by adjusting bios parameters. IIRC, 
today's behaviors appeared after changes to systemd-udev. If I could 
backtrack to the point when oddities first started, I would downgrade 
system. I'll burn rawhide DVD and give it a try.


On 2014-07-02 09:55, poma wrote:
> On 02.07.2014 15:12, Flash wrote:
>> Thanks for reply. Finally realized why I couldn't locate EDID folder,
>> kernel docs weren't installed.
>> Built default edids, copied 1920x1080.bin to /lib/firmware and
>> /lib/firmware/edid, adds
>> drm_kms_helper.edid_firmware=DVI-I-1:edid/1920x1080.bin drm_debug=14
>> log_buf_len=16M to commandline. No change in behavior, commandline
>> firmware helper ignored. Boot DVI-I-1 signal drops during and/or after
>> LUKS prompt. Next, invalid EDID message appears although
>> /usr/bin/edid-decode validates /lib/firmware/1920x1080.bin.
>> My guesstimation so far is (1) once DVI-I-1 signal drops during boot
>> nothing I've done so far 're-connects' DVI-I-1; (2) although
>> 1920x1080.bin is placed in /lib/firmware and /lib/firmware/edid 
>> neither
>> is found yet there is no notification/complaint; (3) for whatever
>> reason, video:DVI-I-1:e is also ignored. Is there another commandline
>> option to keep signal on for DVI-I-1?
>> Thanks again
> Déjà vu?
> Multi-head intel and nvidia configuration fails 100%
> What happens when you run Rawhide?
> poma

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