EDID file fails to load on Arch Linux 4.14.68-1-lts kernel - size is wrong

[znmeb]

I generated a file for my 1360x768 monitor and everything worked in edid-generator. But the resulting file doesn't load at boot time:

$ dmesg|grep -i edid
[    0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-linux-lts root=UUID=335e9118-3b2d-419e-97e8-9ecb1f5bb34c rw amdgpu.cik_support=1 radeon.cik_support=0 amdgpu.dc=1 drm_kms_helper.edid_firmware=edid/1360x768_60.00.bin video=1360x768
[    0.000000] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-linux-lts root=UUID=335e9118-3b2d-419e-97e8-9ecb1f5bb34c rw amdgpu.cik_support=1 radeon.cik_support=0 amdgpu.dc=1 drm_kms_helper.edid_firmware=edid/1360x768_60.00.bin video=1360x768
[    1.560475] platform DVI-I-1: Direct firmware load for edid/1360x768_60.00.bin failed with error -2
[    1.560500] [drm:drm_load_edid_firmware [drm_kms_helper]] *ERROR* Requesting EDID firmware "edid/1360x768_60.00.bin" failed (err=-2)
[    1.640462] platform DVI-I-1: Direct firmware load for edid/1360x768_60.00.bin failed with error -2
[    1.640481] [drm:drm_load_edid_firmware [drm_kms_helper]] *ERROR* Requesting EDID firmware "edid/1360x768_60.00.bin" failed (err=-2)
[    1.750471] platform DVI-I-1: Direct firmware load for edid/1360x768_60.00.bin failed with error -2
[    1.750505] [drm:drm_load_edid_firmware [drm_kms_helper]] *ERROR* Requesting EDID firmware "edid/1360x768_60.00.bin" failed (err=-2)
[    8.011317] [drm:drm_load_edid_firmware [drm_kms_helper]] *ERROR* Size of EDID firmware "edid/1360x768_60.00.bin" is invalid (expected 6272, got 130
[    8.090596] [drm:drm_load_edid_firmware [drm_kms_helper]] *ERROR* Size of EDID firmware "edid/1360x768_60.00.bin" is invalid (expected 6272, got 130
[   11.760539] [drm:drm_load_edid_firmware [drm_kms_helper]] *ERROR* Size of EDID firmware "edid/1360x768_60.00.bin" is invalid (expected 6272, got 130
[   19.440719] [drm:drm_load_edid_firmware [drm_kms_helper]] *ERROR* Size of EDID firmware "edid/1360x768_60.00.bin" is invalid (expected 6272, got 130

The system is Arch Linux with the LTS kernel

$ uname -a
Linux AlgoCompSynth 4.14.68-1-lts #1 SMP Wed Sep 5 14:38:31 CEST 2018 x86_64 GNU/Linux

[Rotaride]

Check your cvt modeline output to not contain any consecutive multiple spaces and make sure you are not feeding modeline2edid with it as consecutive spaces corrupts the output.

[jm009]

Same problem here...

I am using latest Debian (Buster 10.1) and put the generated .bin file in /lib/firmware/edid/.

I added at boot: drm_kms_helper.edid_firmware=edid/3840x2160_24.00_rb.bin

$ ls -trl 3840x2160*
-rw-r--r-- 1 xxx xxx 492 Aug 24 20:57 3840x2160_24.00_rb.S
-rw-r--r-- 1 xxx xxx 134 Aug 24 20:58 3840x2160_24.00_rb.bin
-rw-r--r-- 1 xxx xxx 388 Aug 24 20:59 3840x2160_24.00_rb.bin.ihex
-rw-r--r-- 1 xxx xxx 838 Aug 24 20:59 3840x2160_24.00_rb.c

Output of dmesg contains - Missing trailing ) on purpose

[drm:drm_load_edid_firmware [drm]] *ERROR* Size of EDID firmware "edid/3840x2160_24.00_rb.bin" is invalid (expected 6272, got 134

[cristiantm]

I'm having the same problem on Ubutnu 20.04/Kernel 5.4.
I double checked the Modeline for white spaces.

Any idea/workaround? Is it expected to work with kernel 5.4?

1600x900.zip

[cristiantm]

Hey! Just fixed it by simple removing "dots" from the modeline name. I guess somehow this confused the script and made it generate wrong data.

1600x900_2.zip

Another problem I found is that the data generated by cvt is not correct also. Fonts got blurred.

I connected a mac, decoded its EDID and got the right parameters.

Modeline "1600x900" 108.00 1600 1624 1704 1800 900 901 904 1000 +hsync +vsync

[Nikoh77]

Hi guys, i am a retrogamer and same problem for me...
this the modeline i used: Modeline "720x288x50_08" 13.875000 720 744 808 888 288 293 296 312 -HSync -VSync
i just add ratio=4:3 at the end of command.
this the error (i can see with dmesg): [drm:edid_load [drm]] ERROR Size of EDID firmware "edid/720x288.bin" is invalid (expected 1408, got 128
Please help @Rotaride @cristiantm @znmeb @kenni
720x288.zip

[guyuming76]

the last things i tried is removing "_" from the Modeline name and change from drm_kms_helper.edid_firmware to drm.edid_firmware. And now it works well for me.

I am not sure which change fixed the issue, i guess i should be removing "_" from the Modeline name.

At first, it was ./modeline2edid - <<< 'Modeline "1920x1080_60.00" 173.00 1920 2048 2248 2576 1080 1083 1088 1120 -hsync +vsync'

now, it is ./modeline2edid - <<< 'Modeline "1920x1080" 173.00 1920 2048 2248 2576 1080 1083 1088 1120 -hsync +vsync'