From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pavel Machek Subject: Re: acpi_sleep=s3_bios and Thinkpads Date: Tue, 13 Jul 2004 00:47:49 +0200 Sender: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Message-ID: <20040712224749.GA549@elf.ucw.cz> References: <1088852201.3733.22.camel@tyrosine> <1088867538.9981.1.camel@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <1088867538.9981.1.camel-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org> Errors-To: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: Alan Cox Cc: Matthew Garrett , acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: linux-acpi@vger.kernel.org Hi! > > Having tested around 6 different models of Thinkpad, we've found that > > passing acpi_sleep=s3_bios always helps if there is no framebuffer > > running, but tends to break things if there is a framebuffer. Is this > > worth some sort of DMI hackery in order to make it more likely that > > things will just work? > > The BIOS will re-init to vga text mode for the general case. So you'd > need instead to do some work on the pci resume path of the video drivers > to do mode resets and the like. You may also need to play > with vga routing but that ought to be set right by the BIOS. > > Does switching console unbreak resume ? Actually, on many machines video is *not* in 80x25 text mode upon resume (Toshiba p4, arima, omnibook xe3). If it is in 80x25 text, right thing is to enable vesafb and use s3_mode. Pavel -- People were complaining that M$ turns users into beta-testers... ...jr ghea gurz vagb qrirybcref, naq gurl frrz gb yvxr vg gung jnl! ------------------------------------------------------- This SF.Net email sponsored by Black Hat Briefings & Training. Attend Black Hat Briefings & Training, Las Vegas July 24-29 - digital self defense, top technical experts, no vendor pitches, unmatched networking opportunities. Visit www.blackhat.com