From mboxrd@z Thu Jan 1 00:00:00 1970 From: jurriaan Subject: ghosting with nvidia framebuffer (pci-e 6600), 1600x1200 and 12x22 font Date: Wed, 6 Jul 2005 21:04:56 +0200 Message-ID: <20050706190456.GA20251@amd64.of.nowhere> Reply-To: linux-fbdev-devel@lists.sourceforge.net Mime-Version: 1.0 Return-path: Received: from [10.3.1.91] (helo=sc8-sf-mx1.sourceforge.net) by sc8-sf-list1.sourceforge.net with esmtp (Exim 4.30) id 1DqFDP-0004sg-Ui for linux-fbdev-devel@lists.sourceforge.net; Wed, 06 Jul 2005 12:05:47 -0700 Received: from smtp-vbr5.xs4all.nl ([194.109.24.25]) by sc8-sf-mx1-new.sourceforge.net with esmtp (Exim 4.44) id 1DqFDN-0001zV-BA for linux-fbdev-devel@lists.sourceforge.net; Wed, 06 Jul 2005 12:05:47 -0700 Received: from zeeotter.xs4all.nl (zeeotter.xs4all.nl [80.126.31.149]) by smtp-vbr5.xs4all.nl (8.13.3/8.13.3) with ESMTP id j66J5Uxm020635 for ; Wed, 6 Jul 2005 21:05:35 +0200 (CEST) (envelope-from jurriaan@rivierenland.xs4all.nl) Content-Disposition: inline Sender: linux-fbdev-devel-admin@lists.sourceforge.net Errors-To: linux-fbdev-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Id: List-Post: List-Help: List-Subscribe: , List-Archive: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: adaplas@hotpop.com, adaplas@pol.net, linux-fbdev-devel@lists.sourceforge.net I've bought myself a fine new s939 motherboard, which meant another videocard as well. Since I couldn't get an Ati X600 running reliably under X.org (#@#$*$ FIFO timed out errors are very frustrating, and the only solution I found was to shut down all acceleration, which didn't make me happy), I'm now running an Nvidia 6600. Kernel command line: root=/dev/hda1 video=nvidiafb:1600x1200-32@85 atkbd.softrepeat=1 nvidiafb: nVidia device/chipset 10DE0141 nvidiafb: PCI device 10de:0141 (nVidia Corporation) nvidiafb: CRTC0 found nvidiafb: CRTC1 found nvidiafb: CRTC 0 appears to have a CRT attached nvidiafb: Using CRT on CRTC 0 nvidiafb: MTRR set to ON Console: switching to colour frame buffer device 133x54 nvidiafb: PCI nVidia NV14 framebuffer (64MB @ 0xC0000000) I'm running at 1600x1200 resolution with the 12x22 font, and a 2.6.13-rc1-mm1 kernel. A strange effect is noticeable: often characters from the left of the screen are ghosted on the right of the screen. Not all of the pixels that form a character, but enough to be visible. To my best knowledge, the ghosting starts at column 85, and 85 * 12 = 1020, which may mean some sort of erroneous wrap-around at pixel 1024 is taking place? I can reproduce this almost immediately by pressing on the last line of the screen, thus scrolling the screen up. It also happens in other situations, but not often enough to be able to say what is necessary to reproduce it. 0000:01:00.0 VGA compatible controller: nVidia Corporation: Unknown device 0141 (rev a2) (prog-if 00 [VGA]) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- SERR-