From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932212Ab0IXPHT (ORCPT ); Fri, 24 Sep 2010 11:07:19 -0400 Received: from xenotime.net ([72.52.115.56]:52344 "HELO xenotime.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1751651Ab0IXPHS (ORCPT ); Fri, 24 Sep 2010 11:07:18 -0400 Date: Fri, 24 Sep 2010 08:07:07 -0700 From: Randy Dunlap To: Uwe Bonnes Cc: linux-kernel@vger.kernel.org, David Airlie , dri-devel@lists.freedesktop.org, Jesse Barnes Subject: Re: Any SYSRQ key to force mode switch to console mode when using KMS? Message-Id: <20100924080707.ba98fa1e.rdunlap@xenotime.net> In-Reply-To: <19611.32996.817920.499437@elektron.ikp.physik.tu-darmstadt.de> References: <19601.1301.803816.92851@elektron.ikp.physik.tu-darmstadt.de> <20100921151033.80e61747.randy.dunlap@oracle.com> <19609.53242.674915.369484@elektron.ikp.physik.tu-darmstadt.de> <4C9A1FB7.9050902@oracle.com> <19611.8986.142128.168878@elektron.ikp.physik.tu-darmstadt.de> <19611.20403.865248.695829@elektron.ikp.physik.tu-darmstadt.de> <20100923080212.ca4be1f6.rdunlap@xenotime.net> <19611.32996.817920.499437@elektron.ikp.physik.tu-darmstadt.de> Organization: YPO4 X-Mailer: Sylpheed 2.7.1 (GTK+ 2.16.6; x86_64-unknown-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 23 Sep 2010 18:31:32 +0200 Uwe Bonnes wrote: [just adding cc's] > >>>>> "Randy" == Randy Dunlap writes: > > > Randy> Is CONFIG_DRM_KMS_HELPER enabled in your kernel .config file? If > Randy> not, we need to find out how to enable it (there is no kconfig > Randy> prompt for it). > > Yes, it is enabled > > Randy> Can you check if Alt-Sysrq-H (help) lists V for "force-fb(V)"? > Yes, it is listed. > > And yes, my last experiments where with ALT-CTL-sysreq, so doomed for non > function due to operator error. > > However: > When running X, X.Org X Server 1.9.0 on Thinkpad R50 RV250, Alt-Sysrq-v > switches to an all-black display. By console switching with ALT-CLT-F1 I > get back to the booting console and ALT-CLT-F7 brings me back to X. Running > on the console and calling Alt-Sysrq-v prints > SysRq : Restore framebuffer console > > Is there some omission by the distribution or my setup that Alt-Sysrq-v when > running X results in an all-black screen? > > And when I hit the hibernate problem, the screen stays black even with a > console switch after Alt-Sysrq-v > > Bye > -- > Uwe Bonnes bon@elektron.ikp.physik.tu-darmstadt.de > > Institut fuer Kernphysik Schlossgartenstrasse 9 64289 Darmstadt > --------- Tel. 06151 162516 -------- Fax. 06151 164321 ---------- --- ~Randy *** Remember to use Documentation/SubmitChecklist when testing your code ***