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[Public]<br>
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Hi <font size="2"><span style="font-size:11pt" class="ContentPasted0">Guilherme</span></font>,</div>
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Sorry there was one more patch which I missed to attach. Please add this 3<span><sup>rd</sup> patch and retry.</span><br>
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Reverting that patch would cause high power consumption on Navi2x GPU also cause hangs on certain multi monitor configurations. With these 3 patches, you're getting the same effect as reverting the aforementioned patches, but it makes the reverted sequence
available only for Steam deck hardware. <br>
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Regards,</div>
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Jay<br>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Guilherme G. Piccoli <gpiccoli@igalia.com><br>
<b>Sent:</b> Tuesday, July 11, 2023 7:15 PM<br>
<b>To:</b> Pillai, Aurabindo <Aurabindo.Pillai@amd.com>; Deucher, Alexander <Alexander.Deucher@amd.com><br>
<b>Cc:</b> amd-gfx@lists.freedesktop.org <amd-gfx@lists.freedesktop.org>; Koenig, Christian <Christian.Koenig@amd.com>; Pan, Xinhui <Xinhui.Pan@amd.com>; dri-devel@lists.freedesktop.org <dri-devel@lists.freedesktop.org>; kernel-dev@igalia.com <kernel-dev@igalia.com>;
cristian.ciocaltea@collabora.com <cristian.ciocaltea@collabora.com>; André Almeida <andrealmeid@igalia.com>; Melissa Wen <mwen@igalia.com>; Siqueira, Rodrigo <Rodrigo.Siqueira@amd.com><br>
<b>Subject:</b> Re: [PATCH] Revert "drm/amd/display: Program OTG vtotal min/max selectors unconditionally for DCN1+"</font>
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<div class="PlainText">On 11/07/2023 15:22, Aurabindo Pillai wrote:<br>
> [...]<br>
> Hi,<br>
> <br>
> Sorry for the delayed response, this patch went unnoticed. This revert would break asics. Could you try the attached patch without reverting this one ?<br>
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Hi Aurabindo, thanks for your response!<br>
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I've tried kernel 6.5-rc1, and it seems the issue is present, due to the<br>
patch being merged on Linus tree [as 1598fc576420 ("drm/amd/display:<br>
Program OTG vtotal min/max selectors unconditionally for DCN1+")].<br>
<br>
Then, I tried both your attached patches on top of that, and<br>
unfortunately, the behavior is the same: Steam Deck doesn't boot with<br>
graphics, and we can see the single error "amdgpu 0000:04:00.0: [drm]<br>
*ERROR* [CRTC:67:crtc-0] flip_done timed out" on dmesg.<br>
<br>
Do you / Alex think we could get this revert for 6.5-rc2, so at least we<br>
could boot mainline there while the issue is handled? It would be an<br>
intermediate fix. You mentioned it breaks some asics, but did they work<br>
until now, without your patch?<br>
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Thanks,<br>
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<br>
Guilherme<br>
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