1 .. SPDX-License-Identifier: GPL-2.0
2
3 ====
4 EDID
5 ====
6
7 In the good old days when graphics parameters
8 in a file called xorg.conf, even broken hardwa
9
10 Today, with the advent of Kernel Mode Setting,
11 either correctly working because all component
12 or the computer is unusable, because the scree
13 booting or it displays the wrong area. Cases w
14
15 - The graphics board does not recognize the mo
16 - The graphics board is unable to detect any E
17 - The graphics board incorrectly forwards EDID
18 - The monitor sends no or bogus EDID data.
19 - A KVM sends its own EDID data instead of que
20
21 Adding the kernel parameter "nomodeset" helps
22 restrictions later on.
23
24 As a remedy for such situations, the kernel co
25 CONFIG_DRM_LOAD_EDID_FIRMWARE was introduced.
26 individually prepared or corrected EDID data s
27 directory from where it is loaded via the firm
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