Hi all, I've a workstation which has internal VGA that is detected as AST 2400 and with it EDID has been always quite flaky (except for some time it worked with 4.14 long enough that I thought the problems would be past until the problems reappeared also with 4.14). Thus, I've provided manually the EDID that I extracted from the monitor using other computer (the monitor itself worked just fine on the earlier computer so it is likely fine).
I setup the manual EDID using drm_kms_helper.edid_firmware, however, after upgrading to 4.19.45 it stopped working (no "Got external EDID base block" appears in dmesg, the text mode is kept in the lower res mode, and Xorg logs no longer dumps the EDID info like it did with 4.14). So I guess the EDID I provided manually on the command line is not correctly put into use with 4.19+ kernels. The 4.19 dmesg indicated that drm_kms_helper.edid_firmware is deprecated so I also tested with drm.edid_firmware it suggested as the replacement but with no luck (but I believe also the drm_kms_helper one should have worked as it was only "deprecated"). I also tried 5.1.2 but it did not work any better (and with it also tried removing all the manual *.edid_firmware from the command line so I still need to provide one manually to have it reliable working it seems). -- i. _______________________________________________ dri-devel mailing list firstname.lastname@example.org https://lists.freedesktop.org/mailman/listinfo/dri-devel