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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9FC87C28D13 for ; Sat, 20 Aug 2022 03:04:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243670AbiHTDE3 (ORCPT ); Fri, 19 Aug 2022 23:04:29 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49536 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232439AbiHTDEY (ORCPT ); Fri, 19 Aug 2022 23:04:24 -0400 X-Greylist: delayed 628 seconds by postgrey-1.37 at lindbergh.monkeyblade.net; Fri, 19 Aug 2022 20:04:20 PDT Received: from xilka.com (bbb.xilka.com [IPv6:2001:470:1f11:5a5:16da:e9ff:fe11:e54b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 40B4E5D0E0 for ; Fri, 19 Aug 2022 20:04:18 -0700 (PDT) Received: from comer.internal (comer [IPv6:2001:470:1f11:5a5:a6ea:a72b:2712:4fe7] (may be forged)) (authenticated bits=0) by xilka.com (8.17.1.9/8.17.1.9) with ESMTPSA id 27K2rkIB764576 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NO) for ; Fri, 19 Aug 2022 20:53:47 -0600 From: Kelly Anderson To: linux-kernel@vger.kernel.org Subject: Lenovo Ideapad 5 Pro-16ACH6 Laptop Updated GSCN33WW BIOS Slows Linux Date: Fri, 19 Aug 2022 20:53:46 -0600 Message-ID: <4981778.LvFx2qVVIh@comer.internal> Organization: Xilka MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, Please CC me with any response. I updated my Ideapad 5 Pro 16ACH6 BIOS (AMD Ryzen 5800H) to GSCN33WW. Performance under Linux dropped what seemed to be by a factor of 10. It was painful to use the machine. I was using the latest 5.18.x kernels. I tried various things including dropping back to previous kernel versions to no avail. Finally I reverted to the previous BIOS verson GSCN32WW and the performance returned. Here is the summary of changes for GSCN33WW. Summary of changes ================== General Information: GSCN33WW: BIOS Notification: 1. Fixed 1) Fix Security level 2 fail issue. 2) 2. Add 1) NA 3. Modified 1)NA EC Notification: 1). N/A If there is anything I can to do help identify/fix the problem, please let me know. Thanks