[Bug 60528] New: drm_kms_helper.edid_firmware 60 seconds boot lag

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=60528

          Priority: medium
            Bug ID: 60528
          Assignee: dri-devel at lists.freedesktop.org
           Summary: drm_kms_helper.edid_firmware 60 seconds boot lag
          Severity: critical
    Classification: Unclassified
                OS: Linux (All)
          Reporter: pomidorabelisima at gmail.com
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: unspecified
         Component: DRM/other
           Product: DRI

System boot stumble 1 minute during loading EDID[1][2].

…
[… 05:09:22 …] Kernel command line: BOOT_IMAGE=/vmlinuz-3.7.6-201.fc18.x86_64 …
drm_kms_helper.edid_firmware=DVI-I-1:edid/JC07-01-WVGA-848.edid
…
[… 05:09:24 …] usb 1-6: new high-speed USB device number 6 using ehci_hcd
[… 05:09:25 …] usb 1-6: New USB device found, idVendor=17e9, idProduct=019e
[… 05:09:25 …] usb 1-6: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[… 05:09:25 …] usb 1-6: Product: FY USB-DVI
[… 05:09:25 …] usb 1-6: Manufacturer: DisplayLink
[… 05:09:25 …] usb 1-6: SerialNumber: USB_FY1704
[… 05:09:25 …] [drm] Initialized drm 1.1.0 20060810
[… 05:09:25 …] [drm] vendor descriptor length:1b data:1b 5f 01 00 19 05 00 01
03 00 04
…
60 seconds boot lag after "Started udev Coldplug all Devices."
…
[… 05:10:25 …] [drm:edid_load] *ERROR* Requesting EDID firmware
"edid/JC07-01-WVGA-848.edid" failed (err=-2)
[… 05:10:26 …] Raw EDID:
[… 05:10:26 …]      00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[… 05:10:26 …]      00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[… 05:10:26 …]      00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[… 05:10:26 …]      00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[… 05:10:26 …]      00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[… 05:10:26 …]      00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[… 05:10:26 …]      00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[… 05:10:26 …]      00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[… 05:10:26 …] usb 1-6: DVI-I-1: EDID invalid.
[… 05:10:26 …] open /dev/fb0 user=0 fb_info=ffff880036e5f000 count=1
[… 05:10:26 …] [drm] write mode info 153
[… 05:10:26 …] Console: switching to colour frame buffer device 100x37
[… 05:10:26 …] fb0: udldrmfb frame buffer device
[… 05:10:26 …] drm: registered panic notifier
[… 05:10:26 …] [drm] Initialized udl 0.0.1 20120220 on minor 0
[… 05:10:26 …] usbcore: registered new interface driver udl
…
another 30 seconds…
…
[… 05:10:55 …] [drm] Got external EDID base block and 0 extensions from
"edid/JC07-01-WVGA-848.edid" for connector "DVI-I-1"
[… 05:10:55 …] [drm] Got external EDID base block and 0 extensions from
"edid/JC07-01-WVGA-848.edid" for connector "DVI-I-1"
[… 05:10:55 …] [drm] write mode info 153
[… 05:10:58 …] [drm] Got external EDID base block and 0 extensions from
"edid/JC07-01-WVGA-848.edid" for connector "DVI-I-1"
[… 05:11:09 …] [drm] Got external EDID base block and 0 extensions from
"edid/JC07-01-WVGA-848.edid" for connector "DVI-I-1"
…

[1] https://bugzilla.redhat.com/show_bug.cgi?id=904232#c12
[2] https://bugzilla.redhat.com/show_bug.cgi?id=901899#c8

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