Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S275353AbTHGOmq (ORCPT ); Thu, 7 Aug 2003 10:42:46 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S275365AbTHGOmq (ORCPT ); Thu, 7 Aug 2003 10:42:46 -0400 Received: from Mix-Lyon-107-1-204.w193-249.abo.wanadoo.fr ([193.249.22.204]:27008 "EHLO gaston") by vger.kernel.org with ESMTP id S275353AbTHGOmh (ORCPT ); Thu, 7 Aug 2003 10:42:37 -0400 Subject: Re: [Linux-fbdev-devel] [PATCH] Framebuffer: 2nd try: client notification mecanism & PM From: Benjamin Herrenschmidt To: Pavel Machek Cc: James Simmons , linux-kernel mailing list , Linux Fbdev development list , Pavel Machek In-Reply-To: <20030807100309.GB166@elf.ucw.cz> References: <1060249101.1077.67.camel@gaston> <20030807100309.GB166@elf.ucw.cz> Content-Type: text/plain Content-Transfer-Encoding: 7bit Message-Id: <1060267031.722.3.camel@gaston> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.4.3 Date: 07 Aug 2003 16:37:11 +0200 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1228 Lines: 28 > I believe solution to this is simple: always switch to kernel-owned > console during suspend. (swsusp does it, there's patch for S3 to do > the same). That way, Xfree (or qtopia or whoever) should clean up > after themselves and leave the console to the kernel. (See > kernel/power/console.c) I tried using it on pmac, but it causes hell with XFree. I'm not sure what's up yet, I suspect it may be XFree still doing things after calling the RELDISP ioctl but I'm not completely sure yet. The setup XFree + DRI is working without switching to suspend console (with only the apm_bios emulation for XFree to suspend/restore itself) but not when switching to suspend console right before doing the apm emulation callbacks (which should be ignored by X since it's no longer the frontmost process at this point). For some reason, it seems that after we have switched to the suspend console, we race with the X server on accel engine, and on resume, the X server just crashes. Ben. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/