From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ@public.gmane.org Subject: [Bug 55412] New: Screen turns black during boot after driver tries to set mode on NV50 Date: Fri, 28 Sep 2012 11:51:39 +0000 Message-ID: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============2100198932==" Return-path: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: nouveau-bounces+gcfxn-nouveau=m.gmane.org-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Errors-To: nouveau-bounces+gcfxn-nouveau=m.gmane.org-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org To: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org List-Id: nouveau.vger.kernel.org --===============2100198932== Content-Type: multipart/alternative; boundary="1348833099.A881CdC31.23567"; charset="us-ascii" --1348833099.A881CdC31.23567 Date: Fri, 28 Sep 2012 11:51:39 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" https://bugs.freedesktop.org/show_bug.cgi?id=55412 Priority: medium Bug ID: 55412 Assignee: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Summary: Screen turns black during boot after driver tries to set mode on NV50 QA Contact: xorg-team-go0+a7rfsptAfugRpC6u6w@public.gmane.org Severity: normal Classification: Unclassified OS: Linux (All) Reporter: lubosz-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org Hardware: x86-64 (AMD64) Status: NEW Version: git Component: Driver/nouveau Product: xorg Created attachment 67816 --> https://bugs.freedesktop.org/attachment.cgi?id=67816&action=edit kernel log without flags The following commit on current nouveau git master breaks setting a valid resolution at boot and results in a black screen. commit 97d6852410a83e413d85649cb2cc10e17d6ee2ab Author: Ben Skeggs Date: Thu Jul 26 08:51:21 2012 +1000 drm/nouveau/acpi: move definitions out of nouveau_drv.h Signed-off-by: Ben Skeggs An interesting thing about this bug is that it can be avoided with adding the kernel flag nouveau.reg_debug=0x600. With this flag a wrong resolution is set at boot and the screen does not turn black. The X Server cannot start anyway. My native resolution is 1366x768. GRUB_GFXMODE is 1360x768x32, since the greater resolution is not listed in grub's vbeinfo. nouveau and blob run X with 1366x768. I will attach a log with and without the flag at commit 97d6852410a83e413d85649cb2cc10e17d6ee2ab. -- You are receiving this mail because: You are the assignee for the bug. --1348833099.A881CdC31.23567 Date: Fri, 28 Sep 2012 11:51:39 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8"
Priority medium
Bug ID 55412
Assignee nouveau@lists.freedesktop.org
Summary Screen turns black during boot after driver tries to set mode on NV50
QA Contact xorg-team@lists.x.org
Severity normal
Classification Unclassified
OS Linux (All)
Reporter lubosz@gmail.com
Hardware x86-64 (AMD64)
Status NEW
Version git
Component Driver/nouveau
Product xorg 

Created attachment 67816 [details]
kernel log without flags

The following commit on current nouveau git master breaks setting a valid
resolution at boot and results in a black screen.

commit 97d6852410a83e413d85649cb2cc10e17d6ee2ab
Author: Ben Skeggs <bskeggs@redhat.com>
Date:   Thu Jul 26 08:51:21 2012 +1000

    drm/nouveau/acpi: move definitions out of nouveau_drv.h

    Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

An interesting thing about this bug is that it can be avoided with adding the
kernel flag nouveau.reg_debug=0x600. With this flag a wrong resolution is set
at boot and the screen does not turn black. The X Server cannot start anyway.

My native resolution is 1366x768. GRUB_GFXMODE is 1360x768x32, since the
greater resolution is not listed in grub's vbeinfo.
nouveau and blob run X with 1366x768.

I will attach a log with and without the flag at commit
97d6852410a83e413d85649cb2cc10e17d6ee2ab.

You are receiving this mail because:
  • You are the assignee for the bug.
--1348833099.A881CdC31.23567-- --===============2100198932== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Nouveau mailing list Nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org http://lists.freedesktop.org/mailman/listinfo/nouveau --===============2100198932==--