From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rolf Eike Beer Subject: Re: Screen unusable for console until X starts (945GM) Date: Sat, 20 Oct 2012 14:20:55 +0200 Message-ID: <3355489.fbQxDfRbyW@eto> References: <2018253.eHeXEZIU7i@donald.sf-tec.de> <10159692.N2qSE6WLTd@eto> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============2030043441==" Return-path: Received: from mail.sf-mail.de (mail.sf-mail.de [62.27.20.61]) by gabe.freedesktop.org (Postfix) with ESMTP id BA4609E710 for ; Sat, 20 Oct 2012 05:20:56 -0700 (PDT) In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: intel-gfx-bounces+gcfxdi-intel-gfx=m.gmane.org@lists.freedesktop.org Errors-To: intel-gfx-bounces+gcfxdi-intel-gfx=m.gmane.org@lists.freedesktop.org To: Daniel Vetter Cc: "Nikula, Jani" , intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org --===============2030043441== Content-Type: multipart/signed; boundary="nextPart1480001.K0FSKzcTRd"; micalg="pgp-sha1"; protocol="application/pgp-signature" Content-Transfer-Encoding: 7Bit --nextPart1480001.K0FSKzcTRd Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" Am Samstag 20 Oktober 2012, 14:18:10 schrieb Daniel Vetter: > On Sat, Oct 20, 2012 at 2:14 PM, Rolf Eike Beer wrote: > > Am Samstag 20 Oktober 2012, 13:57:37 schrieb Daniel Vetter: > >> On Sat, Oct 20, 2012 at 8:30 AM, Rolf Eike Beer > > > > wrote: > >> > I have an older Laptop with this card in it: > >> > > >> > [ 0.813208] agpgart-intel 0000:00:00.0: Intel 945GM Chipset > >> > [ 0.813284] agpgart-intel 0000:00:00.0: detected gtt size: 262144K > >> > total, 262144K mappable > >> > [ 0.814188] agpgart-intel 0000:00:00.0: detected 8192K stolen memory > >> > [ 0.814377] agpgart-intel 0000:00:00.0: AGP aperture is 256M @ > >> > 0xc0000000 > >> > > >> > I observe the following strange behavior: if I start up the system > >> > (grub2, > >> > openSUSE 12.1) I see the splash screen appearing shortly. In most cases > >> > it > >> > will then disappear and the screen will become just black. This is not > >> > the > >> > delay "X is loading but has not put anything on the screen", but it is > >> > much > >> > earlier. I'm asked for a crypt password during bootup, which in most > >> > cases > >> > now happens totally in the dark, i.e. no console messages at all, no > >> > prompt. Booting just to runlevel 3 leaves me with a black screen but a > >> > functional system. > >> > > >> > The strange thing is: sometimes (like 10%) things are just working, > >> > i.e. I > >> > have console output. I've tested with 3.1.10 as well as 3.6.2 and both > >> > have > >> > the problem. I've run a number of 2.6 kernels before on this system, > >> > but I > >> > do not recall when the problem occured or which is one that definitely > >> > worked. > >> > > >> > Starting X will always get the screen back into working state, i.e. the > >> > system is normally usable after startup, but it is just annoying to see > >> > nothing during startup. > >> > > >> > Any hints, patches, whatever? > >> > >> Please attach drm.debug=0xe to your kernel cmdline, boot 3.6 and > >> attach complete dmesg (up to the point where X makes something appear > >> on the screen). > > > > Attached. Since I did not mention it earlier: from the moment on X is > > started consoles also work fine. > > Another case where something sets the backlight brightness to zero > when we take over, and the X restores it to something sane again. If > the backlight keys on your machine work, you should be able to > brighten things up even before X starts. > > Adding Jani since he's recently looked at an eerily similar bug. I can switch the screen brightness during startup, but that only makes the black screen a dark grey screen, I still see no text. Eike --nextPart1480001.K0FSKzcTRd Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.18 (GNU/Linux) iEYEABECAAYFAlCClycACgkQXKSJPmm5/E46MQCfdI1wAcWeV8hHUCxRcxlg80XD K2wAoIKU/NxCCcDDZiiM6rnO/6bR0/1j =5MvK -----END PGP SIGNATURE----- --nextPart1480001.K0FSKzcTRd-- --===============2030043441== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/intel-gfx --===============2030043441==--