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=-6.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=no 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 8FE3CC43470 for ; Mon, 3 May 2021 18:22:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5A1CD61283 for ; Mon, 3 May 2021 18:22:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229831AbhECSXB (ORCPT ); Mon, 3 May 2021 14:23:01 -0400 Received: from srv6.fidu.org ([159.69.62.71]:56432 "EHLO srv6.fidu.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229712AbhECSW5 (ORCPT ); Mon, 3 May 2021 14:22:57 -0400 Received: from localhost (localhost.localdomain [127.0.0.1]) by srv6.fidu.org (Postfix) with ESMTP id 9A563C800D2; Mon, 3 May 2021 20:21:53 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at srv6.fidu.org Received: from srv6.fidu.org ([127.0.0.1]) by localhost (srv6.fidu.org [127.0.0.1]) (amavisd-new, port 10026) with LMTP id 2roVKCChHMH2; Mon, 3 May 2021 20:21:53 +0200 (CEST) Received: from wsembach-tuxedo.fritz.box (p200300E37f3986001A8B79e0b24CB29D.dip0.t-ipconnect.de [IPv6:2003:e3:7f39:8600:1a8b:79e0:b24c:b29d]) (Authenticated sender: wse@tuxedocomputers.com) by srv6.fidu.org (Postfix) with ESMTPA id E2A21C800CE; Mon, 3 May 2021 20:21:52 +0200 (CEST) From: Werner Sembach To: wse@tuxedocomputers.com, ville.syrjala@linux.intel.com, airlied@linux.ie, daniel@ffwll.ch, intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org Subject: [PATCH 0/4] drm/i915/display Try YCbCr420 color when RGB fails Date: Mon, 3 May 2021 20:21:44 +0200 Message-Id: <20210503182148.851790-1-wse@tuxedocomputers.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org When encoder validation of a display mode fails, retry with less bandwidth heavy YCbCr420 color mode, if available. This enables some HDMI 1.4 setups to support 4k60Hz output, which previously failed silently. AMDGPU had nearly the exact same issue. This problem description is therefore copied from my commit message of the AMDGPU patch. On some setups, while the monitor and the gpu support display modes with pixel clocks of up to 600MHz, the link encoder might not. This prevents YCbCr444 and RGB encoding for 4k60Hz, but YCbCr420 encoding might still be possible. However, which color mode is used is decided before the link encoder capabilities are checked. This patch fixes the problem by retrying to find a display mode with YCbCr420 enforced and using it, if it is valid. This patchset is revision 2, now split up in multiple parts with some minor restructuring added für a cleaner implementation. 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Mon, 3 May 2021 20:21:52 +0200 (CEST) From: Werner Sembach To: wse@tuxedocomputers.com, ville.syrjala@linux.intel.com, airlied@linux.ie, daniel@ffwll.ch, intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org Subject: [PATCH 0/4] drm/i915/display Try YCbCr420 color when RGB fails Date: Mon, 3 May 2021 20:21:44 +0200 Message-Id: <20210503182148.851790-1-wse@tuxedocomputers.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" V2hlbiBlbmNvZGVyIHZhbGlkYXRpb24gb2YgYSBkaXNwbGF5IG1vZGUgZmFpbHMsIHJldHJ5IHdp dGggbGVzcyBiYW5kd2lkdGgKaGVhdnkgWUNiQ3I0MjAgY29sb3IgbW9kZSwgaWYgYXZhaWxhYmxl LiBUaGlzIGVuYWJsZXMgc29tZSBIRE1JIDEuNCBzZXR1cHMKdG8gc3VwcG9ydCA0azYwSHogb3V0 cHV0LCB3aGljaCBwcmV2aW91c2x5IGZhaWxlZCBzaWxlbnRseS4KCkFNREdQVSBoYWQgbmVhcmx5 IHRoZSBleGFjdCBzYW1lIGlzc3VlLiBUaGlzIHByb2JsZW0gZGVzY3JpcHRpb24gaXMKdGhlcmVm b3JlIGNvcGllZCBmcm9tIG15IGNvbW1pdCBtZXNzYWdlIG9mIHRoZSBBTURHUFUgcGF0Y2guCgpP biBzb21lIHNldHVwcywgd2hpbGUgdGhlIG1vbml0b3IgYW5kIHRoZSBncHUgc3VwcG9ydCBkaXNw bGF5IG1vZGVzIHdpdGgKcGl4ZWwgY2xvY2tzIG9mIHVwIHRvIDYwME1IeiwgdGhlIGxpbmsgZW5j b2RlciBtaWdodCBub3QuIFRoaXMgcHJldmVudHMKWUNiQ3I0NDQgYW5kIFJHQiBlbmNvZGluZyBm b3IgNGs2MEh6LCBidXQgWUNiQ3I0MjAgZW5jb2RpbmcgbWlnaHQgc3RpbGwgYmUKcG9zc2libGUu IEhvd2V2ZXIsIHdoaWNoIGNvbG9yIG1vZGUgaXMgdXNlZCBpcyBkZWNpZGVkIGJlZm9yZSB0aGUg bGluawplbmNvZGVyIGNhcGFiaWxpdGllcyBhcmUgY2hlY2tlZC4gVGhpcyBwYXRjaCBmaXhlcyB0 aGUgcHJvYmxlbSBieSByZXRyeWluZwp0byBmaW5kIGEgZGlzcGxheSBtb2RlIHdpdGggWUNiQ3I0 MjAgZW5mb3JjZWQgYW5kIHVzaW5nIGl0LCBpZiBpdCBpcwp2YWxpZC4KClRoaXMgcGF0Y2hzZXQg aXMgcmV2aXNpb24gMiwgbm93IHNwbGl0IHVwIGluIG11bHRpcGxlIHBhcnRzIHdpdGggc29tZQpt aW5vciByZXN0cnVjdHVyaW5nIGFkZGVkIGbDvHIgYSBjbGVhbmVyIGltcGxlbWVudGF0aW9uLgoK Cl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmRyaS1kZXZl bCBtYWlsaW5nIGxpc3QKZHJpLWRldmVsQGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpodHRwczovL2xp c3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2RyaS1kZXZlbAo= 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=-6.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=no 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 47174C433B4 for ; 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Mon, 3 May 2021 20:21:53 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at srv6.fidu.org Received: from srv6.fidu.org ([127.0.0.1]) by localhost (srv6.fidu.org [127.0.0.1]) (amavisd-new, port 10026) with LMTP id 2roVKCChHMH2; Mon, 3 May 2021 20:21:53 +0200 (CEST) Received: from wsembach-tuxedo.fritz.box (p200300E37f3986001A8B79e0b24CB29D.dip0.t-ipconnect.de [IPv6:2003:e3:7f39:8600:1a8b:79e0:b24c:b29d]) (Authenticated sender: wse@tuxedocomputers.com) by srv6.fidu.org (Postfix) with ESMTPA id E2A21C800CE; Mon, 3 May 2021 20:21:52 +0200 (CEST) From: Werner Sembach To: wse@tuxedocomputers.com, ville.syrjala@linux.intel.com, airlied@linux.ie, daniel@ffwll.ch, intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org Date: Mon, 3 May 2021 20:21:44 +0200 Message-Id: <20210503182148.851790-1-wse@tuxedocomputers.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH 0/4] drm/i915/display Try YCbCr420 color when RGB fails X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; 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