[Bug 93578] [SKL] Intel HD 520 failed to train DP when connected with a external monitor

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=93578

--- Comment #120 from Lev Popov <leo at nabam.net> ---
Sorry, missed extracting kernel sources, fixed instructions:

$ sudo -i
$ apt-get install linux-source-4.4.0
$ cd /usr/src
$ tar -jxf linux-source-4.4.0.tar.bz2
$ cp -R ./linux-source-4.4.0/ubuntu/i915 ./i915_bpo-usbc
$ cd i915_bpo-usbc
$ cat << EOF > dkms.conf 
PACKAGE_NAME="i915_bpo"
PACKAGE_VERSION="usbc"
AUTOINSTALL=yes
REMAKE_INITRD=yes
DEST_MODULE_LOCATION="/updates"
BUILD_EXCLUSIVE_KERNEL="^4.4.*"
EOF
$ sed -i
's#../../drivers/platform/x86/intel_ips.h#../../linux-source-4.4.0/drivers/platform/x86/intel_ips.h#g'
intel_pm.c
$ wget https://patchwork.freedesktop.org/patch/145853/raw/ -O
/tmp/drm-i915.patch
$ patch -p5 < /tmp/drm-i915.patch
$ dkms add -m i915_bpo -v usbc
$ dkms build -m i915_bpo -v usbc
$ dkms install -m i915_bpo -v usbc
$ reboot

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