From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6BB7EC3A589 for ; Thu, 15 Aug 2019 18:34:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3E3EB2063F for ; Thu, 15 Aug 2019 18:34:24 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="nFJj2RJy" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732187AbfHOSeX (ORCPT ); Thu, 15 Aug 2019 14:34:23 -0400 Received: from mail-wr1-f68.google.com ([209.85.221.68]:38982 "EHLO mail-wr1-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730867AbfHOSeX (ORCPT ); Thu, 15 Aug 2019 14:34:23 -0400 Received: by mail-wr1-f68.google.com with SMTP id t16so3062137wra.6; Thu, 15 Aug 2019 11:34:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=rlVguU9XpgwsYUA+9hxlWvJwepLXZJiyhWUMhPLxtJU=; b=nFJj2RJysrbujouemgWcvH+rthi9Gn3IReFReTGfCZ7pkcyb8fVOcEZaV3NpXxBRfo 3IvIKtwf26fF96Gr0SANwOcGwnKLF7CiOUiYs3kVIQ/2K8iGwHXLlJD1NPqz9mlzPHpi U+t5c2qQsGDELMj0ARpQlNcAAjNTmKFY6BwzGiToVX5+Q2Yh8UpCUQT5ejpcpZg2+bci SRCfOJSvCUTE1iijQRQ8dxFBIb1asehXC5g+ii3NZm77FxjHQp5wAWPmRPV++RUgHc7G mF0WyAtDnAlST0LrJPbec4Jp7Q0PTm4gGUZe0iCGzWkfisDZ0HhfHQ32rV6snu+aFqGh qPbw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=rlVguU9XpgwsYUA+9hxlWvJwepLXZJiyhWUMhPLxtJU=; b=t1+u4DQFtNMZywjkeHeW62nLwiS1neIl+vd0AoWKZ1zD1pkFL7KPg0xzwAbyHKCm4u 5i2o2ydlKTurI/StCBVSojqEF5b7bDUbiDtQ3Zyi2tso8iFTyo/LFC3ACfoQDH3fOuS1 Oo7exdMdqT7vjxUIvwC29tdVFt0jUmfTswmhacheARRY3rsCbaukD7M6qCwj950QIXIX 7yW/K8x5seOS2cRu1Lf8kSSS/FF4K4eJGNkA2y8O0ChBcrt8ta/lUMtCyNC1ZmKomd8J 6QmOys41GhtT83y6hLZiVgqqyz3U0+34THMNc/zLJmvTiDkQZKAL1Qe+1BKvvmMGWbeJ b4Wg== X-Gm-Message-State: APjAAAVkWFIg8mlSiz+hYAxGZwZk9Y/fgFVbTtBYC6fC6Oru/5iPcC8x KmUrG7FxxeSiNLV4g9zNkZCWW3sevADlWecm8/8= X-Google-Smtp-Source: APXvYqyEYQ3MDWckUx7xMxV4vAgWCFUTxdu/OBl8PZlVVNfOq+IDthemb8Lkhb3bespAR/hO1pGNxfGZ4U16NcUBy8U= X-Received: by 2002:a5d:6b11:: with SMTP id v17mr6707303wrw.323.1565894061188; Thu, 15 Aug 2019 11:34:21 -0700 (PDT) MIME-Version: 1.0 References: <20190814213118.28473-1-kherbst@redhat.com> <20190814213118.28473-2-kherbst@redhat.com> <5e05532328324d01bc554c573f6298f8@AUSX13MPC101.AMER.DELL.COM> <3fc22fe8bcaf4304bb07534b61c4de90@AUSX13MPC101.AMER.DELL.COM> <8724585e50004bc8b6f310587555f4a1@AUSX13MPC101.AMER.DELL.COM> In-Reply-To: <8724585e50004bc8b6f310587555f4a1@AUSX13MPC101.AMER.DELL.COM> From: Alex Deucher Date: Thu, 15 Aug 2019 14:34:08 -0400 Message-ID: Subject: Re: [Nouveau] [PATCH 1/7] Revert "ACPI / OSI: Add OEM _OSI string to enable dGPU direct output" To: Mario.Limonciello@dell.com Cc: Takashi Iwai , Karol Herbst , nouveau , "Rafael J . Wysocki" , LKML , Maling list - DRI developers , Linux ACPI , Alex Hung , Ben Skeggs , Dave Airlie Content-Type: text/plain; charset="UTF-8" Sender: linux-acpi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org On Thu, Aug 15, 2019 at 12:19 PM wrote: > > > -----Original Message----- > > From: Takashi Iwai > > Sent: Thursday, August 15, 2019 9:57 AM > > To: Alex Deucher > > Cc: Karol Herbst; Limonciello, Mario; nouveau; Rafael J . Wysocki; LKML; dri-devel; > > Linux ACPI Mailing List; Alex Hung; Ben Skeggs; David Airlie > > Subject: Re: [Nouveau] [PATCH 1/7] Revert "ACPI / OSI: Add OEM _OSI string to > > enable dGPU direct output" > > > > > > [EXTERNAL EMAIL] > > > > On Thu, 15 Aug 2019 16:37:05 +0200, > > Alex Deucher wrote: > > > > > > On Thu, Aug 15, 2019 at 10:25 AM Karol Herbst wrote: > > > > > > > > On Thu, Aug 15, 2019 at 4:20 PM wrote: > > > > > > > > > > > > There are definitely going to be regressions on machines in the field > > with the > > > > > > > in tree drivers by reverting this. I think we should have an answer for all > > of > > > > > > those > > > > > > > before this revert is accepted. > > > > > > > > > > > > > > Regarding systems with Intel+NVIDIA, we'll have to work with partners > > to > > > > > > collect > > > > > > > some information on the impact of reverting this. > > > > > > > > > > > > > > When this is used on a system with Intel+AMD the ASL configures AMD > > GPU to > > > > > > use > > > > > > > "Hybrid Graphics" when on Windows and "Power Express" and > > "Switchable > > > > > > Graphics" > > > > > > > when on Linux. > > > > > > > > > > > > and what's exactly the difference between those? And what's the actual > > > > > > issue here? > > > > > > > > > > DP/HDMI is not detected unless plugged in at bootup. It's due to missing > > HPD > > > > > events. > > > > > > > > > > > > > afaik Lyude was working on fixing all that, at least for some drivers. > > > > If there is something wrong, we still should fix the drivers, not > > > > adding ACPI workarounds. > > > > > > > > Alex: do you know if there are remaining issues regarding that with amdgpu? > > > > > > There was an issue with hpd events not making it to the audio side > > > when things were powered down that was fixed with this patch set: > > > https://patchwork.freedesktop.org/patch/316793/ > > > Those patches depended on a bunch of alsa changes as well which may > > > have not been available in the distro used for a particular OEM > > > program. > > > > FYI, the corresponding commit for ALSA part is destined for 5.4 > > kernel: > > > > https://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git/commit/?id=ade > > 49db337a9d44ac5835cfce1ee873549011b27 > > > > BTW, Nouveau should suffer from the same problem. The patch to add > > the audio component support is found at: > > https://patchwork.freedesktop.org/patch/319131/ > > > > > > It sounds like 5.3rcX won't be a useful check then. > > So am I correct to understand that everything related to the AMD failures > described in this thread should be in linux-next at this point? > Assuming you mean the missing audio hotplug events, then yes. Alex