From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 110510] Radeon VII HDMI issues: Flicking/system crashing Date: Wed, 24 Apr 2019 22:54:50 +0000 Message-ID: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============2113671986==" Return-path: Received: from culpepper.freedesktop.org (culpepper.freedesktop.org [131.252.210.165]) by gabe.freedesktop.org (Postfix) with ESMTP id 01BC7891AF for ; Wed, 24 Apr 2019 22:54:51 +0000 (UTC) List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org --===============2113671986== Content-Type: multipart/alternative; boundary="15561464900.aB0F9Bb97.11593" Content-Transfer-Encoding: 7bit --15561464900.aB0F9Bb97.11593 Date: Wed, 24 Apr 2019 22:54:50 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated https://bugs.freedesktop.org/show_bug.cgi?id=3D110510 Bug ID: 110510 Summary: Radeon VII HDMI issues: Flicking/system crashing Product: DRI Version: XOrg git Hardware: Other OS: All Status: NEW Severity: normal Priority: medium Component: DRM/AMDgpu Assignee: dri-devel@lists.freedesktop.org Reporter: tom@r.je Created attachment 144089 --> https://bugs.freedesktop.org/attachment.cgi?id=3D144089&action=3Dedit dmesg after setting HDMI screen to 59.94hz I have a radeon VII with two 4k displays. One connected via HDMI and one connected via DisplayPort. Neither monitor supports freesync. Linux 5.0.9=20 Mesa 19.0.3 The DisplayPort monitor is working fine. The HDMI monitor has some problems. On its own I can get it working perfect= ly. Here's the output from xrandr: DisplayPort-2 connected primary 3840x2160+0+0 (normal left inverted right x axis y axis) 521mm x 293mm 3840x2160 60.00*+ 30.00 30.00 24.00 29.97 23.98=20=20 1920x1200 60.00=20=20 1920x1080 60.00 50.00 59.94 30.00 24.00 29.97 23.9= 8=20=20 1600x1200 60.00=20=20 1680x1050 59.95=20=20 1280x1024 75.02 60.02=20=20 1440x900 59.89=20=20 1280x960 60.00=20=20 1280x800 59.81=20=20 1152x864 75.00=20=20 1280x768 59.87=20=20 1280x720 60.00 50.00 59.94=20=20 1024x768 75.03 70.07 60.00=20=20 832x624 74.55=20=20 800x600 72.19 75.00 60.32 56.25=20=20 720x576 50.00=20=20 720x480 60.00 59.94=20=20 640x480 75.00 72.81 66.67 60.00 59.94=20=20 720x400 70.08=20=20 HDMI-A-0 connected 3840x2160+3840+0 (normal left inverted right x axis y ax= is) 521mm x 293mm 3840x2160 60.00*+ 60.00 50.00 59.94 30.00 30.00 24.0= 0=20=20=20 29.97 23.98=20=20 1920x1200 60.00=20=20 1920x1080 60.00 50.00 59.94 30.00 24.00 29.97 23.9= 8=20=20 1600x1200 60.00=20=20 1680x1050 59.88=20=20 1280x1024 75.02 60.02=20=20 1440x900 59.90=20=20 1280x960 60.00=20=20 1280x800 59.91=20=20 1152x864 75.00=20=20 1280x768 59.87=20=20 1280x720 60.00 50.00 59.94=20=20 1024x768 75.03 70.07 60.00=20=20 832x624 74.55=20=20 800x600 72.19 75.00 60.32 56.25=20=20 720x576 50.00=20=20 720x480 60.00 59.94=20=20 640x480 75.00 72.81 66.67 60.00 59.94=20=20 720x400 70.08=20=20 If it's connected on it shows two problems intermittently:=20=20 1. It flickers occasionally with visual artifacts 2. The screen goes black for a few seconds then comes back With just the HDMI screen connected this can be solved. If I set the refresh rate to 59.94 the problems go away and everything is working flawlessly.=20 However, as soon as I connect the second monitor by displayport this fix no longer works. With both monitors connected and both running at 60.0hz, the displayport sc= reen is fine but the HDMI screen flickers. An easy fix I thought: Run the HMDI screen at 59.94hz and the flicker will go away. Unfortunately, what actually happens is the entire session freezes after a = few seconds on both X and Wayland. Usually it requires a complete system reset = but I have managed to recover from it a couple of times and I've attached my dm= esg output. Sometimes the freeze is instant, other times I get up to 10 seconds before = the system freezes. I also tried 50hz on the HDMI monitor and the same thing happened. There appears to be two different issues here: 1. HDMI flickers=20 2. Running two monitors at different refresh rates causes the driver to cra= sh --=20 You are receiving this mail because: You are the assignee for the bug.= --15561464900.aB0F9Bb97.11593 Date: Wed, 24 Apr 2019 22:54:50 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated
Bug ID 110510
Summary Radeon VII HDMI issues: Flicking/system crashing
Product DRI
Version XOrg git
Hardware Other
OS All
Status NEW
Severity normal
Priority medium
Component DRM/AMDgpu
Assignee dri-devel@lists.freedesktop.org
Reporter tom@r.je 

Created attachment 144089 [details]=

dmesg after setting HDMI screen to 59.94hz

I have a radeon VII with two 4k displays. One connected via HDMI and one
connected via DisplayPort. Neither monitor supports freesync.

Linux 5.0.9=20
Mesa 19.0.3

The DisplayPort monitor is working fine.

The HDMI monitor has some problems. On its own I can get it working perfect=
ly.
Here's the output from xrandr:

DisplayPort-2 connected primary 3840x2160+0+0 (normal left inverted right x
axis y axis) 521mm x 293mm
   3840x2160     60.00*+  30.00    30.00    24.00    29.97    23.98=20=20
   1920x1200     60.00=20=20
   1920x1080     60.00    50.00    59.94    30.00    24.00    29.97    23.9=
8=20=20
   1600x1200     60.00=20=20
   1680x1050     59.95=20=20
   1280x1024     75.02    60.02=20=20
   1440x900      59.89=20=20
   1280x960      60.00=20=20
   1280x800      59.81=20=20
   1152x864      75.00=20=20
   1280x768      59.87=20=20
   1280x720      60.00    50.00    59.94=20=20
   1024x768      75.03    70.07    60.00=20=20
   832x624       74.55=20=20
   800x600       72.19    75.00    60.32    56.25=20=20
   720x576       50.00=20=20
   720x480       60.00    59.94=20=20
   640x480       75.00    72.81    66.67    60.00    59.94=20=20
   720x400       70.08=20=20
HDMI-A-0 connected 3840x2160+3840+0 (normal left inverted right x axis y ax=
is)
521mm x 293mm
   3840x2160     60.00*+  60.00    50.00    59.94    30.00    30.00    24.0=
0=20=20=20
29.97    23.98=20=20
   1920x1200     60.00=20=20
   1920x1080     60.00    50.00    59.94    30.00    24.00    29.97    23.9=
8=20=20
   1600x1200     60.00=20=20
   1680x1050     59.88=20=20
   1280x1024     75.02    60.02=20=20
   1440x900      59.90=20=20
   1280x960      60.00=20=20
   1280x800      59.91=20=20
   1152x864      75.00=20=20
   1280x768      59.87=20=20
   1280x720      60.00    50.00    59.94=20=20
   1024x768      75.03    70.07    60.00=20=20
   832x624       74.55=20=20
   800x600       72.19    75.00    60.32    56.25=20=20
   720x576       50.00=20=20
   720x480       60.00    59.94=20=20
   640x480       75.00    72.81    66.67    60.00    59.94=20=20
   720x400       70.08=20=20


If it's connected on it shows two problems intermittently:=20=20

1. It flickers occasionally with visual artifacts
2. The screen goes black for a few seconds then comes back


With just the HDMI screen connected this can be solved. If I set the refresh
rate to 59.94 the problems go away and everything is working flawlessly.=20

However, as soon as I connect the second monitor by displayport this fix  no
longer works.

With both monitors connected and both running at 60.0hz, the displayport sc=
reen
is fine but the HDMI screen flickers. An easy fix I thought: Run the HMDI
screen at 59.94hz and the flicker will go away.


Unfortunately, what actually happens is the entire session freezes after a =
few
seconds on both X and Wayland. Usually it requires a complete system reset =
but
I have managed to recover from it a couple of times and I've attached my dm=
esg
output.

Sometimes the freeze is instant, other times I get up to 10 seconds before =
the
system freezes.


I also tried 50hz on the HDMI monitor and the same thing happened.

There appears to be two different issues here:


1. HDMI flickers=20
2. Running two monitors at different refresh rates causes the driver to cra=
sh

You are receiving this mail because:
  • You are the assignee for the bug.
= --15561464900.aB0F9Bb97.11593-- --===============2113671986== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: inline X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KZHJpLWRldmVs IG1haWxpbmcgbGlzdApkcmktZGV2ZWxAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlz dHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vZHJpLWRldmVs --===============2113671986==--