From mboxrd@z Thu Jan 1 00:00:00 1970 From: Helge Deller Subject: [PATCH] stifb: detect cards in double buffer mode more reliable Date: Mon, 23 Jul 2007 22:09:15 +0200 Message-ID: <200707232209.15432.deller@gmx.de> Reply-To: linux-fbdev-devel@lists.sourceforge.net Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from sc8-sf-mx1-b.sourceforge.net ([10.3.1.91] helo=mail.sourceforge.net) by sc8-sf-list1-new.sourceforge.net with esmtp (Exim 4.43) id 1ID4Es-0001R3-7t for linux-fbdev-devel@lists.sourceforge.net; Mon, 23 Jul 2007 13:10:42 -0700 Received: from mail.gmx.net ([213.165.64.20]) by mail.sourceforge.net with smtp (Exim 4.44) id 1ID4Ep-0003Yn-KG for linux-fbdev-devel@lists.sourceforge.net; Mon, 23 Jul 2007 13:10:42 -0700 Content-Disposition: inline List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-fbdev-devel-bounces@lists.sourceforge.net Errors-To: linux-fbdev-devel-bounces@lists.sourceforge.net To: Antonino Daplas Cc: linux-fbdev-devel@lists.sourceforge.net, Kyle McMartin stifb: detect cards in double buffer mode more reliable Visualize-EG, Graffiti and A4450A graphics cards on PARISC can be configured in double-buffer and standard mode, but the stifb driver supports standard mode only. This patch detects double-buffered cards more reliable. Signed-off-by: Helge Deller diff --git a/drivers/video/stifb.c b/drivers/video/stifb.c index c97709e..3fe3be5 100644 --- a/drivers/video/stifb.c +++ b/drivers/video/stifb.c @@ -1100,13 +1100,18 @@ stifb_init_fb(struct sti_struct *sti, int bpp_pref) /* only supported cards are allowed */ switch (fb->id) { case CRT_ID_VISUALIZE_EG: - /* look for a double buffering device like e.g. the - "INTERNAL_EG_DX1024" in the RDI precisionbook laptop - which won't work. The same device in non-double - buffering mode returns "INTERNAL_EG_X1024". */ - if (strstr(sti->outptr.dev_name, "EG_DX")) { - printk(KERN_WARNING - "stifb: ignoring '%s'. Disable double buffering in IPL menu.\n", + /* Visualize cards can run either in "double buffer" or + "standard" mode. Depending on the mode, the card reports + a different device name, e.g. "INTERNAL_EG_DX1024" in double + buffer mode and "INTERNAL_EG_X1024" in standard mode. + Since this driver only supports standard mode, we check + if the device name contains the string "DX" and tell the + user how to reconfigure the card. */ + if (strstr(sti->outptr.dev_name, "DX")) { + printk(KERN_WARNING "WARNING: stifb framebuffer driver does not " + "support '%s' in double-buffer mode.\n" + KERN_WARNING "WARNING: Please disable the double-buffer mode " + "in IPL menu (the PARISC-BIOS).\n", sti->outptr.dev_name); goto out_err0; } ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/