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    Mhm strange.<br>
    <br>
    Can you get me the output of "sudo cat
    /sys/kernel/debug/dri/0/radeon_fence_info" when the problem happens?<br>
    <br>
    Thanks,<br>
    Christian.<br>
    <br>
    <div class="moz-cite-prefix">Am 31.03.21 um 16:33 schrieb Alberto
      Salvia Novella:<br>
    </div>
    <blockquote type="cite" cite="mid:CAHJvkbuxkJeXCqh3FYW2q7FREM9-6CQrJ0EYCLp0v_z4SL3h_A@mail.gmail.com">
      
      <div dir="ltr">
        <div>- The computer still replies to <b>ping</b>.</div>
        <div>- The <b>journal</b> shows no errors, but a few <a href="https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fbin.privacytools.io%2F%3F5a0bf22220398549%23D8SPwPEh8A5BuKN6TkU78gAgEPgrUok4fCjcaucSEnyy&data=04%7C01%7Cchristian.koenig%40amd.com%7C48392451d33d4b63e5f208d8f45204d7%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637527980411072897%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=1jQLb8pO7eJYTORNisjequdWSCoKPsrrv7y%2F4U%2BojLM%3D&reserved=0" originalsrc="https://bin.privacytools.io/?5a0bf22220398549#D8SPwPEh8A5BuKN6TkU78gAgEPgrUok4fCjcaucSEnyy" shash="rY+G6ZubMvs/m9XCySS79aijEtVeBJooyAcN1rWIklpBGH+V3mfnMVAgBX9Y1EogHxDS0OMqzwZt26s/4BY0ZFTR5E9hg8886a9ShGKvkv7UG0ScbmbCGpVTOLLNnDtYzGpfdSqEotGnRkZR+ZHwLkQvg2gmatdKMLYy7OjoHd4=" moz-do-not-send="true">warnings</a>.</div>
        <div>- The <b>mouse</b> doesn't freeze.<br>
        </div>
      </div>
      <br>
      <div class="gmail_quote">
        <div dir="ltr" class="gmail_attr">On Wed, 31 Mar 2021 at 10:09,
          Christian König <<a href="mailto:christian.koenig@amd.com" moz-do-not-send="true">christian.koenig@amd.com</a>>
          wrote:<br>
        </div>
        <blockquote class="gmail_quote" style="margin:0px 0px 0px
          0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
          <div> Can you access the system over the network and see if
            there is anything in the system log?<br>
            <br>
            It sounds like the display stack has crashed, but when the
            sound keeps playing the system is most likely still
            responsive over network.<br>
            <br>
            Thanks,<br>
            Christian.<br>
            <br>
            <div>Am 31.03.21 um 10:05 schrieb Alberto Salvia Novella:<br>
            </div>
            <blockquote type="cite">
              <div dir="ltr">
                <div>What happens is this simple: after a few minutes,
                  about 6 or so, the entire content of the screen stays
                  still. In some minor situations only the applications
                  panel of KDE Plasma.</div>
                <div><br>
                </div>
                <div>If music is playing it continues playing, so only
                  graphics are hung. Yet in most cases the power button
                  won't shut down the computer, as it usually does.<br>
                </div>
                <div><br>
                </div>
                <div>At least this is the case using kwin on x11, and
                  not on wayland. It only happens on "radeon" and not on
                  Intel or "radeonhd".</div>
              </div>
              <br>
              <div class="gmail_quote">
                <div dir="ltr" class="gmail_attr">On Wed, 31 Mar 2021 at
                  09:48, Christian König <<a href="mailto:christian.koenig@amd.com" target="_blank" moz-do-not-send="true">christian.koenig@amd.com</a>>
                  wrote:<br>
                </div>
                <blockquote class="gmail_quote" style="margin:0px 0px
                  0px 0.8ex;border-left:1px solid
                  rgb(204,204,204);padding-left:1ex">
                  <div> Correct, but a TV is intended for videos only.
                    That's why it implements only the lower HDMI
                    standard.<br>
                    <br>
                    Interlaced transmits only halve the lines with each
                    frame, so a 60Hz mode effectively either becomes a
                    30Hz mode, halving the vertical resolution or
                    adaptive motion compensated which the know visual
                    artifacts. Depending on what the deinterlacing
                    setting on your TV is.<br>
                    <br>
                    You could just add a progressive 1920x540@60 or
                    1920x1080@30 mode manually and would have the same
                    effect with probably better quality. See <a href="https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fde.wikipedia.org%2Fwiki%2FDeinterlacing&data=04%7C01%7Cchristian.koenig%40amd.com%7C48392451d33d4b63e5f208d8f45204d7%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637527980411072897%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=UTefQjeEYVrJto%2FqBlna%2FQKihbJe2HQG%2BczlZViFPDY%3D&reserved=0" originalsrc="https://de.wikipedia.org/wiki/Deinterlacing" shash="XsjxJP6KTrU0bhN3YVZw0ojeokBRiGRSSDkXrWiQfzS/TAPQEu7gY38KPzYcdQ1LT80hBsvTba8n+nknalzPWryg/Zx6LSSpl/P4k9+Q3n4yk6Oft8jEvVmsYgSaDp3S3QZj3bDrOmBSv6Z/CxvEceBCwiA8lNUsiEuxVz+Flzo=" target="_blank" moz-do-not-send="true">https://de.wikipedia.org/wiki/Deinterlacing</a>
                    for reference.<br>
                    <br>
                    If you can give us some more information what is
                    happening when the system freeze we could try to
                    narrow this down, but we can't spend much time on a
                    very specific use case in a driver which is in
                    maintenance mode.<br>
                    <br>
                    Regards,<br>
                    Christian.<br>
                    <br>
                    <div>Am 31.03.21 um 09:21 schrieb Alberto Salvia
                      Novella:<br>
                    </div>
                    <blockquote type="cite">
                      <div dir="ltr">
                        <div>24fps is intended for video only. Anything
                          interactive at 24fps, as just moving the mouse
                          around, is extremely choppy.</div>
                        <div><br>
                        </div>
                        <div>No way anyone would prefer that over an
                          interlaced resolution or a lower resolution.
                          That is, by far, the worst option.</div>
                        <div><br>
                        </div>
                        <div>Just try it on your screen, set it to 24Hz
                          or alike, and tell me your experience. You
                          can't even tell where the mouse is going to
                          go.<br>
                        </div>
                      </div>
                      <br>
                      <div class="gmail_quote">
                        <div dir="ltr" class="gmail_attr">On Wed, 31 Mar
                          2021 at 08:44, Christian König <<a href="mailto:christian.koenig@amd.com" target="_blank" moz-do-not-send="true">christian.koenig@amd.com</a>>
                          wrote:<br>
                        </div>
                        <blockquote class="gmail_quote" style="margin:0px 0px 0px
                          0.8ex;border-left:1px solid
                          rgb(204,204,204);padding-left:1ex">
                          <div> Hi Alberto,<br>
                            <br>
                            well a frame rate of 24Hz is perfectly
                            reasonable for a TV and desktop usage.<br>
                            <br>
                            This is probably caused by the TVs limited
                            HDMI bandwidth and a refresh rate of 30/25
                            Hz for the interlaced mode isn't much better
                            either.<br>
                            <br>
                            Regards,<br>
                            Christian.<br>
                            <br>
                            <div>Am 30.03.21 um 22:59 schrieb Alberto
                              Salvia Novella:<br>
                            </div>
                            <blockquote type="cite">
                              <div dir="ltr">
                                <div>The frame-rate at 24Hz is extremely
                                  poor for normal desktop usage.<br>
                                </div>
                                <div><br>
                                </div>
                                <div>If the highest resolution, aka
                                  1080p, uses that refresh rate then the
                                  desktop will default to that
                                  frame-rate.</div>
                                <div><br>
                                </div>
                                <div>Other progressive modes don't
                                  exhibit any issue.<br>
                                </div>
                              </div>
                              <br>
                              <div class="gmail_quote">
                                <div dir="ltr" class="gmail_attr">On
                                  Tue, 30 Mar 2021 at 18:26, Christian
                                  König <<a href="mailto:christian.koenig@amd.com" target="_blank" moz-do-not-send="true">christian.koenig@amd.com</a>>
                                  wrote:<br>
                                </div>
                                <blockquote class="gmail_quote" style="margin:0px 0px 0px
                                  0.8ex;border-left:1px solid
                                  rgb(204,204,204);padding-left:1ex">
                                  <div> Hi Alberto,<br>
                                    <br>
                                    <blockquote type="cite">I think the
                                      driver should only support
                                      resolutions that are <b>progressive</b>,
                                      but also at least of <b>50Hz</b>.</blockquote>
                                    <br>
                                    Why do you think so?, the 24Hz
                                    resolution seems to be the native
                                    one of the display.<br>
                                    <br>
                                    Regards,<br>
                                    Christian.<br>
                                    <br>
                                    <div>Am 30.03.21 um 17:37 schrieb
                                      Alberto Salvia Novella:<br>
                                    </div>
                                    <blockquote type="cite">
                                      <div dir="ltr">
                                        <div>This is why I'm using
                                          interlaced:<br>
                                        </div>
                                        <div><br>
                                        </div>
                                        <div>$ <b>xrandr</b><br>
                                          Screen 0: minimum 320 x 200,
                                          current 1920 x 1080, maximum
                                          8192 x 8192<br>
                                          DisplayPort-0 disconnected
                                          (normal left inverted right x
                                          axis y axis)<br>
                                          HDMI-0 connected primary
                                          1920x1080+0+0 (normal left
                                          inverted right x axis y axis)
                                          16mm x 9mm<br>
                                             1920x<b>1080i</b>  
                                           60.00*+  50.00    59.94  <br>
                                             1920x1080     <b>24.00</b>
                                             23.98  <br>
                                             1280x<b>720</b>      60.00
                                             50.00    59.94  <br>
                                             1024x768      75.03  
                                           70.07    60.00  <br>
                                             832x624       74.55  <br>
                                             800x600       72.19  
                                           75.00    60.32    56.25  <br>
                                             720x576       50.00  <br>
                                             720x576i      50.00  <br>
                                             720x480       60.00  
                                           59.94  <br>
                                             720x480i      60.00  
                                           59.94  <br>
                                             640x480       75.00  
                                           72.81    66.67    60.00  
                                           59.94  <br>
                                             720x400       70.08  <br>
                                          DVI-0 disconnected (normal
                                          left inverted right x axis y
                                          axis)</div>
                                        <div><br>
                                        </div>
                                        <div>I think the driver should
                                          only support resolutions that
                                          are <b>progressive</b>, but
                                          also at least of <b>50Hz</b>.<br>
                                        </div>
                                      </div>
                                      <br>
                                      <div class="gmail_quote">
                                        <div dir="ltr" class="gmail_attr">On Tue, 30
                                          Mar 2021 at 15:41, Christian
                                          König <<a href="mailto:ckoenig.leichtzumerken@gmail.com" target="_blank" moz-do-not-send="true">ckoenig.leichtzumerken@gmail.com</a>>
                                          wrote:<br>
                                        </div>
                                        <blockquote class="gmail_quote" style="margin:0px 0px 0px
                                          0.8ex;border-left:1px solid
                                          rgb(204,204,204);padding-left:1ex">
                                          <div> Mhm, no idea why an
                                            interlaced resolution would
                                            cause a crash. Maybe some
                                            miscalculation in the
                                            display code.<br>
                                            <br>
                                            But apart from that if you
                                            just connected your PC to a
                                            TV I also wouldn't recommend
                                            using an interlaced
                                            resolution in the first
                                            place.<br>
                                            <br>
                                            See those resolutions only
                                            exists for backward
                                            compatibility with analog
                                            hardware.<br>
                                            <br>
                                            I think we would just
                                            disable those modes instead
                                            of searching for the bug.<br>
                                            <br>
                                            Regards,<br>
                                            Christian.<br>
                                            <br>
                                            <div>Am 30.03.21 um 11:07
                                              schrieb Alberto Salvia
                                              Novella:<br>
                                            </div>
                                            <blockquote type="cite">
                                              <div dir="ltr">
                                                <div>I guessed so.</div>
                                                <div><br>
                                                </div>
                                                <div>The GPU is a Radeon
                                                  HD5870, and the screen
                                                  is an old Telefunken
                                                  TV (TLFK22LEDPVR1).</div>
                                                <div><br>
                                                </div>
                                                <div>Since my real
                                                  display got into
                                                  repair I used this TV
                                                  meanwhile, and to my
                                                  surprise it froze the
                                                  system.<br>
                                                </div>
                                              </div>
                                              <br>
                                              <div class="gmail_quote">
                                                <div dir="ltr" class="gmail_attr">On
                                                  Tue, 30 Mar 2021 at
                                                  10:15, Christian König
                                                  <<a href="mailto:christian.koenig@amd.com" target="_blank" moz-do-not-send="true">christian.koenig@amd.com</a>>
                                                  wrote:<br>
                                                </div>
                                                <blockquote class="gmail_quote" style="margin:0px 0px
                                                  0px
                                                  0.8ex;border-left:1px
                                                  solid
                                                  rgb(204,204,204);padding-left:1ex">Hi
                                                  Alberto,<br>
                                                  <br>
                                                  well what hardware do
                                                  you have?<br>
                                                  <br>
                                                  Interlaced resolutions
                                                  are not used any more
                                                  on modern hardware, so
                                                  they <br>
                                                  are not well tested.<br>
                                                  <br>
                                                  Regards,<br>
                                                  Christian.<br>
                                                  <br>
                                                  Am 30.03.21 um 10:04
                                                  schrieb Alberto Salvia
                                                  Novella:<br>
                                                  > The entire
                                                  desktop hangs after
                                                  some minutes when
                                                  using the module <br>
                                                  > "radeon" with an
                                                  interlaced resolution.<br>
                                                  ><br>
                                                  > Easier to trigger
                                                  by playing a video on
                                                  Firefox, at least on
                                                  kwin_x11. <br>
                                                  > Wayland didn't
                                                  exhibit the problem.<br>
                                                  ><br>
                                                  > Other display
                                                  drivers, from
                                                  different computers I
                                                  have tried, didn't <br>
                                                  > allow those
                                                  interlaced resolutions
                                                  all together. It seems
                                                  they know <br>
                                                  > there will be
                                                  problems.<br>
                                                  <br>
                                                </blockquote>
                                              </div>
                                              <br>
                                              <fieldset></fieldset>
                                              <pre>_______________________________________________
amd-gfx mailing list
<a href="mailto:amd-gfx@lists.freedesktop.org" target="_blank" moz-do-not-send="true">amd-gfx@lists.freedesktop.org</a>
<a href="https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.freedesktop.org%2Fmailman%2Flistinfo%2Famd-gfx&data=04%7C01%7Cchristian.koenig%40amd.com%7C48392451d33d4b63e5f208d8f45204d7%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637527980411082891%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=5HXXJnOGGnEYSV%2BY%2FyWu031sE4CxFTKS2QqcKvlhhPs%3D&reserved=0" originalsrc="https://lists.freedesktop.org/mailman/listinfo/amd-gfx" shash="u56q1lUI6O5q7apnXYhggsqUoU/FBRn6d287wNR5pLOMB7RuRwYGRso1pwzLpFPW2EFyb7gKoJhhykt6bbK90D5c1AyPusVg6S3ipyGapJtdycKufQjvHXziCGZpG8itRkccrFH5xirIfyalAsnIKDJEf7sgOIj4b16WZcidMsI=" target="_blank" moz-do-not-send="true">https://lists.freedesktop.org/mailman/listinfo/amd-gfx</a>
</pre>
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