[Bug 109829] No image via KVM switch. USB-C->dual DisplayPort->KVM

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=109829

--- Comment #22 from Stuart <stuart at eightfivelabs.com> ---
@Jani, I did the following:

I cloned drm-tip from git://anongit.freedesktop.org/drm-tip and then ran `make
defconfig`, `make`, `sudo make modules_install`, `sudo make install` and then
rebooted.

My LUKS password wouldn't work at all for an unknown reason and no WiFi device.
I reinstalled Ubuntu 19.10 with no LUKS and reran the above drm-tip install.
Still no WiFi and still no dual DP monitors.

See below.

stuart at SSH-NUC:~/drm-tip$ sudo cat /sys/kernel/debug/dri/0/i915_dmc_info
fw loaded: no
path: i915/kbl_dmc_ver1_04.bin
program base: 0xfffffdfe
ssp base: 0x00000000
htp: 0x00000000


stuart at SSH-NUC:~/drm-tip$ dmesg | grep i915
[    0.415019] i915 0000:00:02.0: Found 64MB of eDRAM
[    0.415071] i915 0000:00:02.0: vgaarb: deactivate vga console
[    0.419134] i915 0000:00:02.0: vgaarb: changed VGA decodes:
olddecodes=io+mem,decodes=io+mem:owns=io+mem
[    0.419167] i915 0000:00:02.0: Direct firmware load for
i915/kbl_dmc_ver1_04.bin failed with error -2
[    0.419168] i915 0000:00:02.0: Failed to load DMC firmware
i915/kbl_dmc_ver1_04.bin. Disabling runtime power management.
[    0.419169] i915 0000:00:02.0: DMC firmware homepage:
https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/tree/i915
[    0.727855] [drm] Initialized i915 1.6.0 20191101 for 0000:00:02.0 on minor
0
[    0.918841] fbcon: i915drmfb (fb0) is primary device
[    0.946780] i915 0000:00:02.0: fb0: i915drmfb frame buffer device



stuart at SSH-NUC:~/drm-tip$ dmesg | grep failed
[    0.419167] i915 0000:00:02.0: Direct firmware load for
i915/kbl_dmc_ver1_04.bin failed with error -2
[    0.688530] [drm] failed to retrieve link info, disabling eDP
[    1.017595] platform regulatory.0: Direct firmware load for regulatory.db
failed with error -2
[    1.017596] cfg80211: failed to load regulatory.db


In settings my thunderbolt -> dual DP port adapter says "No Thunderbolt
support" "Thunderbolt security level could not be determined"

Let me know what we need to try next.

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