From nobody Wed Apr 17 14:24:13 2024 X-Original-To: freebsd-ppc@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4VKNSz158Bz5H10S for ; Wed, 17 Apr 2024 14:24:19 +0000 (UTC) (envelope-from tuexen@freebsd.org) Received: from drew.franken.de (mail-n.franken.de [193.175.24.27]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "*.franken.de", Issuer "Sectigo RSA Domain Validation Secure Server CA" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4VKNSy5zmHz4xCC for ; Wed, 17 Apr 2024 14:24:18 +0000 (UTC) (envelope-from tuexen@freebsd.org) Authentication-Results: mx1.freebsd.org; none Received: from smtpclient.apple (unknown [IPv6:2a02:8109:1140:c3d:e8b1:690b:6a69:a05c]) (Authenticated sender: micmac) by drew.franken.de (Postfix) with ESMTPSA id E118A721E280D; Wed, 17 Apr 2024 16:24:13 +0200 (CEST) Content-Type: text/plain; charset=us-ascii List-Id: Porting FreeBSD to the PowerPC List-Archive: https://lists.freebsd.org/archives/freebsd-ppc List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: freebsd-ppc@freebsd.org Sender: owner-freebsd-ppc@FreeBSD.org Mime-Version: 1.0 (Mac OS X Mail 16.0 \(3774.500.171.1.1\)) Subject: Re: First row missing when using a monitor From: tuexen@freebsd.org In-Reply-To: Date: Wed, 17 Apr 2024 16:24:13 +0200 Cc: FreeBSD PowerPC ML Content-Transfer-Encoding: quoted-printable Message-Id: References: <35999CD2-0530-40C0-B1ED-247EE6B2E08E@freebsd.org> To: Hugh Blemings X-Mailer: Apple Mail (2.3774.500.171.1.1) X-Spam-Status: No, score=-2.9 required=5.0 tests=ALL_TRUSTED,BAYES_00 autolearn=disabled version=3.4.1 X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on mail-n.franken.de X-Spamd-Bar: ---- X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[]; ASN(0.00)[asn:680, ipnet:193.174.0.0/15, country:DE] X-Rspamd-Queue-Id: 4VKNSy5zmHz4xCC > On 17. Apr 2024, at 15:11, Hugh Blemings wrote: >=20 > Hi Michael, All, >=20 > On 17/4/2024 12:09, tuexen@freebsd.org wrote: >> Dear all, >>=20 >> when using a monitor in combination with a Power9 system (raptor = black bird), >> the top line is not displayed. I verified this when using top or vi. >> However, there is enough space on the monitor display let at the = bottom to >> show one additional line below the lowest displayed one. >>=20 >> So it seems that the number of rows is correct, but when displaying = them, >> they are off by one resulting in the first one not being visible. >>=20 >> This happens with the main branch. >>=20 >> Any idea what could be wrong? >=20 > I'm curious - is this using the framebuffer in the BMC or a separate = video card ? I have no video card installed. >=20 > I seem to recall the text console when using the BMC framebuffer the = display parameters are such that the top few lines to get truncated. It = might be that some tweaks to the framebuffer scan line settings could = resolve this. Alas I no longer remember how this is done. >=20 > Maybe this gives a next potential step though ? Any idea which code to look at? Best regards Michael >=20 > Cheers, > Hugh >=20 >=20