From debbugs-submit-bounces@debbugs.gnu.org Sun Apr 12 11:31:00 2020 Received: (at 40538) by debbugs.gnu.org; 12 Apr 2020 15:31:00 +0000 Received: from localhost ([127.0.0.1]:58677 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1jNeZY-0003Qe-CG for submit@debbugs.gnu.org; Sun, 12 Apr 2020 11:31:00 -0400 Received: from pelzflorian.de ([5.45.111.108]:52490 helo=mail.pelzflorian.de) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1jNeZV-0003QT-HE for 40538@debbugs.gnu.org; Sun, 12 Apr 2020 11:30:59 -0400 Received: from pelzflorian.localdomain (unknown [5.45.111.108]) by mail.pelzflorian.de (Postfix) with ESMTPSA id A750536055C; Sun, 12 Apr 2020 17:30:53 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=pelzflorian.de; s=mail; t=1586705453; bh=B/9zrQBHUuqYsd0MOG1ztJiZlN000C7MR9leJe5y2lU=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=yQ2cKX8cXY9/HT0ETFRnRj2oXgcXp4siT+5ZQG9fSefsFpQK/aY3h81OpuYN4hut1 sDpWx/oR2He68MfrI9hcLxBSoYo8i9mpa8FgDLwN+1E52T7IZkJ17zFUFLCFr+JTJR Ug2EhAh9h2sMHmSI01sC13sdqvwkp36kMIDqRH84= Date: Sun, 12 Apr 2020 17:30:52 +0200 From: "pelzflorian (Florian Pelz)" To: Mathieu Othacehe Subject: Re: bug#40538: installer: Support uvesafb to install on machines without KMS. Message-ID: <20200412153052.ewxdd6m4f6yar2jw@pelzflorian.localdomain> References: <20200410125447.smn6xhcixe7hpday@pelzflorian.localdomain> <87tv1rv21e.fsf@gnu.org> <20200411184346.c3cgop7egcjyqzwf@pelzflorian.localdomain> <874ktpspr5.fsf@gnu.org> <20200412090257.jxljqbkwfhn7afnr@pelzflorian.localdomain> <20200412112400.x4qufeztdnkmzqhx@pelzflorian.localdomain> <874ktooj3v.fsf@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <874ktooj3v.fsf@gmail.com> X-Spam-Score: 0.0 (/) X-Debbugs-Envelope-To: 40538 Cc: Ludovic =?utf-8?Q?Court=C3=A8s?= , 40538@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -1.0 (-) On Sun, Apr 12, 2020 at 04:48:36PM +0200, Mathieu Othacehe wrote: > Thanks for your patch. I tried briefly 1.1.0-rc2 on some hardware of > mine. On three somehow recent laptops, everything still works fine but > v86d segfaults without giving much information. > > The 'dmesg' output looks like: > > --8<---------------cut here---------------start------------->8--- > v86d[371]: segfault at xxxxx. > uvesafb: Getting VBE info block failed (eax=0x4f00, err=1) > uvesafb: vbe_init() failed with -22 > uvesafb: probe of uvesafb.0 failed with error -22 > --8<---------------cut here---------------end--------------->8--- > Even though I do not remember a segfault, I believe these errors come when another driver has already reserved the memory that uvesafb wants. If the other driver already works fine and that is the only error, maybe we can just ignore the uvesafb error. > On a really old Intel machine, I have a complete black screen on all TTY > but that was maybe the case on older Guix System revisions and I would > need to do more investigations. > > Mathieu Please try adding nomodeset to the kernel parameters. I hope this makes the Intel machine work fine. Thank you for your feedback and all your work! Regards, Florian