<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">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">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">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>
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