[Bug 109522] drm:intel_dp_start_link_train [i915] *ERROR* failed to enable link training

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=109522

howaboutsynergy at pm.me changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |howaboutsynergy at pm.me

--- Comment #11 from howaboutsynergy at pm.me ---
Getting this on ArchLinux with kernel 5.1.3-g7cb9c5d341b9, i7-8700k CPU, no
discrete graphics card, motherboard Asus Prime Z370-A, using BIOS version
Version 1002 2018/07/06 8.76 MBytes (latest BIOS being Version 2001 2019/05/15
10.31 MBytes, please don't ask me to update), intel-ucode 20190514.a-1 (ie. the
MDS one), mesa 19.0.4-1, NOTE: NOT using: xf86-video-intel, libva-intel-driver,
libva1-intel-driver.
```
00:02.0 VGA compatible controller: Intel Corporation UHD Graphics 630 (Desktop)
00:14.0 USB controller: Intel Corporation 200 Series/Z370 Chipset Family USB
3.0 xHCI Controller
```

I think this is why I also get:
```
$ xrandr --verbose|grep -C2 -w 85|grep --color=always Bad|head -1
        link-status: Bad 

$ grep -A1 DP-1
/home/user/.config/xfce4/xfconf/xfce-perchannel-xml/displays.xml|grep -e
'Active' -e 'false'
      <property name="Active" type="bool" value="false"/>
```

seemingly at/after the times when monitor was turned off(or went to sleep?):
```
[ 4373.521845] [drm:intel_dp_start_link_train [i915]] *ERROR* failed to enable
link training
[ 6979.762718] [drm:intel_dp_start_link_train [i915]] *ERROR* failed to enable
link training
```

Something from `Xorg.0.log`:
```
...
[    32.021] (II) modeset(0): glamor X acceleration enabled on Mesa DRI
Intel(R) UHD Graphics 630 (Coffeelake 3x8 GT2) 
...
[  2974.053] (II) modeset(0): Modeline "1280x800"x0.0   83.50  1280 1352 1480
1680  800 803 809 831 -hsync +vsync (49.7 kHz e)
[  4374.136] (WW) modeset(0): hotplug event: connector 85's link-state is BAD,
tried resetting the current mode. You may be leftwith a black screen if this
fails...
[  4374.719] (WW) modeset(0): hotplug event: connector 85's link-state is BAD,
tried resetting the current mode. You may be leftwith a black screen if this
fails...
[  4378.425] (II) modeset(0): EDID vendor "GSM", prod id 23305
...
[  4442.760] (WW) modeset(0): hotplug event: connector 85's link-state is BAD,
tried resetting the current mode. You may be leftwith a black screen if this
fails...
...
[  4445.432] (II) modeset(0): Modeline "1280x800"x0.0   83.50  1280 1352 1480
1680  800 803 809 831 -hsync +vsync (49.7 kHz e)
[  6980.360] (WW) modeset(0): hotplug event: connector 85's link-state is BAD,
tried resetting the current mode. You may be leftwith a black screen if this
fails...
[  6980.926] (WW) modeset(0): hotplug event: connector 85's link-state is BAD,
tried resetting the current mode. You may be leftwith a black screen if this
fails...
[  6980.976] (WW) modeset(0): hotplug event: connector 85's link-state is BAD,
tried resetting the current mode. You may be leftwith a black screen if this
fails...
[  6981.172] (II) modeset(0): EDID vendor "GSM", prod id 23305
...
[  6990.753] (WW) modeset(0): hotplug event: connector 85's link-state is BAD,
tried resetting the current mode. You may be leftwith a black screen if this
fails...
```

-- 
You are receiving this mail because:
You are the assignee for the bug.
You are the QA Contact for the bug.
You are on the CC list for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/intel-gfx-bugs/attachments/20190522/369cb644/attachment.html>