From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ludovic =?UTF-8?Q?Court=C3=A8s?= Subject: bug#35408: External monitor not working with GDM Date: Fri, 26 Apr 2019 10:14:59 +0200 Message-ID: <878svxnpx8.fsf@gnu.org> References: <87ftq8c9n9.fsf@sturm.com.au> <87ef5qqwog.fsf@gnu.org> <17cc954b1feb50becef0df5bcafa56b6c9e45da7.camel@sturm.com.au> <87k1fhag3v.fsf@GlaDOS.home> <65eb86bd2ce13da6a6ea41360770aaa51fe1dea4.camel@sturm.com.au> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Return-path: Received: from eggs.gnu.org ([209.51.188.92]:41054) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hJw1f-0003In-JI for bug-guix@gnu.org; Fri, 26 Apr 2019 04:16:08 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hJw1a-00045v-H7 for bug-guix@gnu.org; Fri, 26 Apr 2019 04:16:07 -0400 Received: from debbugs.gnu.org ([209.51.188.43]:46449) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1hJw1a-00045B-DC for bug-guix@gnu.org; Fri, 26 Apr 2019 04:16:02 -0400 Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1hJw1Z-0000mq-V6 for bug-guix@gnu.org; Fri, 26 Apr 2019 04:16:02 -0400 Sender: "Debbugs-submit" Resent-Message-ID: In-Reply-To: <65eb86bd2ce13da6a6ea41360770aaa51fe1dea4.camel@sturm.com.au> (Ben Sturmfels's message of "Fri, 26 Apr 2019 10:42:58 +1000") List-Id: Bug reports for GNU Guix List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-guix-bounces+gcggb-bug-guix=m.gmane.org@gnu.org Sender: "bug-Guix" To: Ben Sturmfels Cc: Diego Nicola Barbato , 35408@debbugs.gnu.org Hi Ben, Ben Sturmfels skribis: > [ 448.627] (II) RADEON: Driver for ATI/AMD Radeon chipsets: [...] > [ 448.630] (II) [KMS] drm report modesetting isn't supported. > [ 448.630] (EE) open /dev/dri/card0: No such file or directory > [ 448.630] (WW) Falling back to old probe method for modesetting > [ 448.630] (EE) open /dev/dri/card0: No such file or directory > [ 448.630] (II) Loading sub module "fbdevhw" > [ 448.630] (II) LoadModule: "fbdevhw" > [ 448.631] (II) Loading /gnu/store/xxpf6xz7prlwrvvl7sviaxmahsyavx1c-xor= g-server-1.20.4/lib/xorg/modules/libfbdevhw.so > [ 448.631] (II) Module fbdevhw: vendor=3D"X.Org Foundation" > [ 448.631] compiled for 1.20.4, module version =3D 0.0.2 > [ 448.631] ABI class: X.Org Video Driver, version 24.0 > [ 448.631] (EE) Unable to find a valid framebuffer device > [ 448.631] (WW) Falling back to old probe method for fbdev > [ 448.631] (II) Loading sub module "fbdevhw" > [ 448.631] (II) LoadModule: "fbdevhw" > [ 448.631] (II) Loading /gnu/store/xxpf6xz7prlwrvvl7sviaxmahsyavx1c-xor= g-server-1.20.4/lib/xorg/modules/libfbdevhw.so > [ 448.631] (II) Module fbdevhw: vendor=3D"X.Org Foundation" > [ 448.631] compiled for 1.20.4, module version =3D 0.0.2 > [ 448.631] ABI class: X.Org Video Driver, version 24.0 > [ 448.631] (EE) open /dev/fb0: No such file or directory > [ 448.631] (WW) VGA arbiter: cannot open kernel arbiter, no multi-card = support > [ 448.631] (EE) Screen 0 deleted because of no matching config section. > [ 448.631] (II) UnloadModule: "radeon" > [ 448.631] (EE) Screen 0 deleted because of no matching config section. > [ 448.631] (II) UnloadModule: "modesetting" > [ 448.631] (EE) Screen 0 deleted because of no matching config section. > [ 448.631] (II) UnloadModule: "fbdev" > [ 448.631] (II) UnloadSubModule: "fbdevhw" > [ 448.631] (II) Loading sub module "vbe" > [ 448.631] (II) LoadModule: "vbe" > [ 448.632] (II) Loading /gnu/store/xxpf6xz7prlwrvvl7sviaxmahsyavx1c-xor= g-server-1.20.4/lib/xorg/modules/libvbe.so > [ 448.632] (II) Module vbe: vendor=3D"X.Org Foundation" > [ 448.632] compiled for 1.20.4, module version =3D 1.1.0 > [ 448.632] ABI class: X.Org Video Driver, version 24.0 > [ 448.632] (II) Loading sub module "int10" > [ 448.632] (II) LoadModule: "int10" > [ 448.632] (II) Loading /gnu/store/xxpf6xz7prlwrvvl7sviaxmahsyavx1c-xor= g-server-1.20.4/lib/xorg/modules/libint10.so > [ 448.632] (II) Module int10: vendor=3D"X.Org Foundation" > [ 448.632] compiled for 1.20.4, module version =3D 1.0.0 > [ 448.632] ABI class: X.Org Video Driver, version 24.0 > [ 448.632] (II) VESA(0): initializing int10 > [ 448.633] (EE) VESA(0): Cannot read int vect > [ 448.633] (II) UnloadModule: "vesa" > [ 448.633] (II) UnloadSubModule: "int10" > [ 448.633] (II) Unloading int10 > [ 448.633] (II) UnloadSubModule: "vbe" > [ 448.633] (II) Unloading vbe > [ 448.633] (EE) Screen(s) found, but none have a usable configuration. > [ 448.633] (EE)=20 > Fatal server error: > [ 448.633] (EE) no screens found(EE)=20 > [ 448.633] (EE)=20 > Please consult the The X.Org Foundation support=20 > at http://wiki.x.org > for help.=20 > [ 448.633] (EE) Please also check the log file at "/var/lib/gdm/.local/= share/xorg/Xorg.0.log" for additional information. It looks like you have an AMD Radeon graphics card, is that right? Did you pass =E2=80=9Cmodprobe.blacklist=3Dradeon=E2=80=9D on the kernel comman= d line, or something similar? Apparently some of these AMD graphics cards are not quite supported by free software, so that might be the issue here. Thanks, Ludo=E2=80=99.