From mboxrd@z Thu Jan 1 00:00:00 1970 From: Johannes Schauer Subject: 2.6.33 regression for intel hd in dell e6510, e6410 and possibly thinkpad x200s Date: Sun, 23 May 2010 12:11:28 +0200 Message-ID: <4BF8FF50.8030007@email.de> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1080171177==" Return-path: Received: from fmmailgate03.web.de (fmmailgate03.web.de [217.72.192.234]) by gabe.freedesktop.org (Postfix) with ESMTP id 10DCE9E7CE for ; Sun, 23 May 2010 03:12:31 -0700 (PDT) Received: from smtp01.web.de ( [172.20.0.243]) by fmmailgate03.web.de (Postfix) with ESMTP id D976D151B020D for ; Sun, 23 May 2010 12:12:28 +0200 (CEST) Received: from [212.201.44.243] (helo=[10.222.16.2]) by smtp01.web.de with asmtp (WEB.DE 4.110 #4) id 1OG8AV-0005Cw-00 for intel-gfx@lists.freedesktop.org; Sun, 23 May 2010 12:12:27 +0200 List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Mime-version: 1.0 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: intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --===============1080171177== Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enig7083D68964C2C6E9C116B83B" This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig7083D68964C2C6E9C116B83B Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable hi! on newer kernels, whenever i modprobe i915 my screen goes black. the backlight is still on and the machine continues working but now as a headless system. by bisection i found the commit that introduced this regression: 885a5fb5b120a5c7e0b3baad7b0feb5a89f76c18 is the first bad commit commit 885a5fb5b120a5c7e0b3baad7b0feb5a89f76c18 Author: Zhenyu Wang Date: Tue Jan 12 05:38:31 2010 +0800 drm/i915: fix pixel color depth setting on eDP Original DP mode_valid check didn't take pixel color depth into accou= nt, which made one 1600x900 eDP panel's mode check invalid because of overclock, but actually this 6bpc panel does can work with x1 lane at 2.7G. This one trys to take bpp value properly both in mode validation and mode setting. Signed-off-by: Zhenyu Wang Signed-off-by: Eric Anholt :040000 040000 3c99ae05b82db5b8e453d2062bcf56743794476b d7e0aa843fe4f8173f624572c77a7fe93b6fc455 M drivers this issue appears on my dell e6510 with intel hd (arrandale) and one can find many bugreports about the same effect on the e6410 and thinkpad x200s - all using said platform: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/554569 https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/561802 i also can confirm, that when removing the changes from this commit in the most recent intel_dp.c then my display even works on 2.6.34 :) cheers josch --------------enig7083D68964C2C6E9C116B83B Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAkv4/1YACgkQXYV+f49DE/VYRgCg9QSe06VRGOaxYmAbUo77Yy87 TyIAn0i8kJPbr2prmBaEl38Au1nmBXYn =1MhK -----END PGP SIGNATURE----- --------------enig7083D68964C2C6E9C116B83B-- --===============1080171177== 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 --===============1080171177==--