From owner-freebsd-stable@FreeBSD.ORG Fri Mar 19 05:13:58 2010 Return-Path: Delivered-To: stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id C2BDF106566B; Fri, 19 Mar 2010 05:13:58 +0000 (UTC) (envelope-from oberman@es.net) Received: from mailgw.es.net (mail2.es.net [IPv6:2001:400:107:1::2]) by mx1.freebsd.org (Postfix) with ESMTP id 73EE48FC17; Fri, 19 Mar 2010 05:13:58 +0000 (UTC) Received: from [192.168.168.5] (c-76-102-73-135.hsd1.ca.comcast.net [76.102.73.135]) (authenticated bits=0) by mailgw.es.net (8.14.3/8.14.3) with ESMTP id o2J5Ds6M013229 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=NOT); Thu, 18 Mar 2010 22:13:55 -0700 Message-Id: From: Kevin Oberman To: Ian Smith In-Reply-To: <20100319142102.P85436@sola.nimnet.asn.au> Content-Type: text/plain; charset=us-ascii; format=flowed; delsp=yes Content-Transfer-Encoding: 7bit Mime-Version: 1.0 (iPod Mail 7D11) Date: Thu, 18 Mar 2010 22:13:00 -0700 References: <20100318153342.4450C1CC26@ptavv.es.net> <20100319142102.P85436@sola.nimnet.asn.au> X-Mailer: iPod Mail (7D11) X-Proofpoint-Virus-Version: vendor=fsecure engine=1.12.8161:2.4.5, 1.2.40, 4.0.166 definitions=2010-03-18_16:2010-02-06, 2010-03-18, 2010-03-18 signatures=0 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 spamscore=0 ipscore=0 phishscore=0 bulkscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx engine=5.0.0-0908210000 definitions=main-1003180369 X-Regulatory-Partner: 1 Cc: "stable@freebsd.org" , "delphij@freebsd.org" Subject: Re: DPMS broken on ThinkPad T43 since update for amd64 support X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 19 Mar 2010 05:13:58 -0000 On Mar 18, 2010, at 20:42, Ian Smith wrote: > On Thu, 18 Mar 2010, Kevin Oberman wrote: >> Since the update of DPMS to support amd64 on March 2, it has broken >> rather badly on my ThinkPad T43 laptop. The problem showed up on >> 8-stable built on March 3 and is still present after an update to >> stable >> of March 17. >> >> When in vty text mode, after the idle normal delay, the display >> blanks, >> but the backlight remains on, so the P in DPMS seems to be less than >> effective. At that point, the non-graphics display is dead. It never >> comes back when characters are entered. I can't get the display to >> come >> back without a reboot. >> >> I can, however, start X (and Gnome) and everything is fine. But >> switching back to any vty results in a blank screen. >> >> Any idea what happened and if there is a fix or workaround? Any >> data I >> can collect? > > Have you tried kldloading vesa? Might be a workaround until you > find a > proper fix? Had a similar issue with my T23 at one stage on 7.0, > after > a suspend/resume cycle, which hw.syscons.sc_no_suspend_vtswitch=1 also > helped .. no idea how the T43 might respond to the latter. Thanks, Ian, but it didn't help. The hw.syscons.sc_no_suspend_vtswitch sysctl is only relevant to resuming from suspend and I think I was the one who suggested it to you. I used to have T23 & used it on that systeem. Thanks for the suggestions, though. Sent from my iPod >