Date: Sun, 11 Apr 1999 19:54:14 -0400 From: Randall Hopper <aa8vb@ipass.net> To: Roger Hardiman <roger@cs.strath.ac.uk> Cc: multimedia@FreeBSD.ORG Subject: Re: Bt848 corruption since upgrading to 3.1. Has DMA code changed? Message-ID: <19990411195414.A13809@ipass.net> In-Reply-To: <370CB2DC.709E7CEA@cs.strath.ac.uk>; from Roger Hardiman on Thu, Apr 08, 1999 at 02:45:00PM %2B0100 References: <370CB2DC.709E7CEA@cs.strath.ac.uk>
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Roger Hardiman: |Several people (including Luigi) have reported that video capture with |the bt848 driver is not working right since they upgraded from 2.2.6 or |2.2.8 to 3.1-release ... |Does anyone know what is different in the 3.x kernel (compared to the |2.2.x kernel) which could be causing this corruption. Just as a datapoint, I've run 3.0-971208-SNAP and (for many months now) 3.0-RELEASE with the installed and more recent bt848 drivers (currently v1.57) with no problems. ASUS P55T2P4, STB Velocity 3D 4Meg, Hauppauge Wincast TV/dbx. It would be an interesting datapoint to heard whether those seeing corruption don't see it when doing PCI-to-mem transfers rather than the default PCI-to-PCI (that is, try "fxtv -disableDirectV"). (I also wonder if there's some relation between motherboard, MB chipsets, or video cards for those seeing corruption.) Randall To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-multimedia" in the body of the message
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