[Bug 97861] [amdgpu SI] purple line is visible on left side of the screen connected by HDMI

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=97861

            Bug ID: 97861
           Summary: [amdgpu SI] purple line is visible on left side of the
                    screen connected by HDMI
           Product: DRI
           Version: DRI git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/AMDgpu
          Assignee: dri-devel at lists.freedesktop.org
          Reporter: arek.rusi at gmail.com

Created attachment 126615
  --> https://bugs.freedesktop.org/attachment.cgi?id=126615&action=edit
the purple line

kernel - 3 days old drm-next-4.9-wip
mesa/llvm/libdrm - latest
xorg - 1.18.4 / ~1.19

I have two displays: DVI monitor, always "on" and HDMI (TV) usually "off". 

When i turn on HDMI screen:
$xrandr --output DVI-I-1 --primary --mode 1680x1050 --output HDMI-A-0 --mode
1920x1080

On left side TV screen appears purple vertical line. 


1) this is 80-90% bug 91041, but amdgpu here and srcreen isn't blurry
$xrandr --output HDMI-A-0 --auto --set audio off
works for me
2) option audio=0 did the job as well 
3) Before Xorg/wayland start tty's are clean&black after X/wayland purple line
is visible.  
4) problem is probably related to hdmi-audio so i don't even know if it's bug
at all

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