From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ben Sturmfels Subject: bug#35408: External monitor not working with GDM Date: Thu, 02 May 2019 12:00:47 +1000 Message-ID: <87y33paa40.fsf@sturm.com.au> References: <87ftq8c9n9.fsf@sturm.com.au> <87ef5qqwog.fsf@gnu.org> <17cc954b1feb50becef0df5bcafa56b6c9e45da7.camel@sturm.com.au> <87k1fhag3v.fsf@GlaDOS.home> <65eb86bd2ce13da6a6ea41360770aaa51fe1dea4.camel@sturm.com.au> <878svxnpx8.fsf@gnu.org> Mime-Version: 1.0 Content-Type: multipart/signed; boundary="=-=-="; micalg=pgp-sha512; protocol="application/pgp-signature" Return-path: Received: from eggs.gnu.org ([209.51.188.92]:40418) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hM130-00017a-AX for bug-guix@gnu.org; Wed, 01 May 2019 22:02:07 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hM12y-0006r7-6v for bug-guix@gnu.org; Wed, 01 May 2019 22:02:06 -0400 Received: from debbugs.gnu.org ([209.51.188.43]:59980) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1hM12w-0006q0-S6 for bug-guix@gnu.org; Wed, 01 May 2019 22:02:04 -0400 Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1hM12w-00080p-M8 for bug-guix@gnu.org; Wed, 01 May 2019 22:02:02 -0400 Sender: "Debbugs-submit" Resent-Message-ID: In-reply-to: <878svxnpx8.fsf@gnu.org> 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: Ludovic =?UTF-8?Q?Court=C3=A8s?= Cc: Diego Nicola Barbato , 35408@debbugs.gnu.org --=-=-= Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Hi Ludovic, Ben Sturmfels Sturm Software Engineering www.sturm.com.au +61 3 9024 2467 On Fri, 26 Apr 2019, Ludovic Court=C3=A8s wrote: > 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-xo= rg-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-xo= rg-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-xo= rg-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-xo= rg-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) >> Fatal server error: >> [ 448.633] (EE) no screens found(EE) >> [ 448.633] (EE) >> Please consult the The X.Org Foundation support >> at http://wiki.x.org >> for help. >> [ 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 comm= and 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. Whoops, sorry I'm being unintentionally misleading - I shuttle my hard drive across from my X200 into an F2A85-M motherboard at work, which has Radeon HD 8470D. It's always just worked with Slim on Guix and Trisquel 7/8. I'll try the modprobe.blacklist though. This is a bit of a stab in the dark, but I have been having issues with PostgreSQL and OpenSMTPD changing swapping UID/GIDs after reconfiguring or booting back into an old Guix System profile. This has required me to manually correct the permissions in /var/lib with `chown`. I'm suspicious that the same might be happening to GDM. I'll do some testing on this. 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