From mboxrd@z Thu Jan 1 00:00:00 1970 From: R CHAN Subject: Re: VIA VT8237 Date: Fri, 04 Jun 2004 13:45:42 +0800 Sender: alsa-devel-admin@lists.sourceforge.net Message-ID: <40C00C86.1090306@starhub.net.sg> References: <40BE3D0E.5050804@hccnet.nl> <1086217616.2458.53.camel@huykhoi.mascorp.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1086217616.2458.53.camel@huykhoi.mascorp.com> Errors-To: alsa-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: Anthony.Truong@mascorp.com Cc: Gert Vervoort , alsa-devel@lists.sourceforge.net List-Id: alsa-devel@alsa-project.org I think Gert is referring to Rear L/R switched with Center/LFE rather than Center<->LFE; indeed I have encountered exactly the same problem myself. [The windows test setup program allows Center<->LFE to be adjusted but outputs Rear L/R "correctly"; I'm not sure why Alsa has got it the other way round - maybe I need 3,4,6,9,7,8]? Anthony Dominic Truong wrote: > This is a new feature in this new AC97 controller. 3D Channel SGD > Control Register (offset 0x41) is used to turn this on or off. Writing > a 1 to bit 4 of this register enables the swapping of center and LFE > playbacks (slots 3,4,7,8,9,6). Clearing this bit keeps the order > (3,4,7,8,6,9). > This is a bit of info I got from VIA after struggling with this swapping > for nearly a week. :-( > > Regards, > Anthony Dominic Truong. > > > On Wed, 2004-06-02 at 13:48, Gert Vervoort wrote: > >>The following patch adds a reference to the VIA VT8237 southbridge: >> >>--- via82xx.c.orig 2004-06-02 22:09:04.509536136 +0200 >>+++ via82xx.c 2004-06-02 22:40:35.773020384 +0200 >>@@ -136,6 +136,7 @@ >> #define VIA_REV_8233 0x30 /* 2 rec, 4 pb, 1 multi-pb, spdif */ >> #define VIA_REV_8233A 0x40 /* 1 rec, 1 multi-pb, spdf */ >> #define VIA_REV_8235 0x50 /* 2 rec, 4 pb, 1 multi-pb, spdif */ >>+#define VIA_REV_8237 0x60 /* 2 rec, 4 pb, 1 multi-pb, spdif */ >> >> /* >> * Direct registers >>@@ -2070,6 +2071,7 @@ >> { VIA_REV_8233, "VIA 8233", TYPE_VIA8233 }, >> { VIA_REV_8233A, "VIA 8233A", TYPE_VIA8233A }, >> { VIA_REV_8235, "VIA 8235", TYPE_VIA8233 }, >>+ { VIA_REV_8237, "VIA 8237", TYPE_VIA8233 }, >> }; >> >> /* >> >>When playing back 6 channel audio on this card, it looks like the rear >>left/right and center/LFE are switched. >> >>Gert >> >> >> >>------------------------------------------------------- >>This SF.Net email is sponsored by the new InstallShield X. >>>>From Windows to Linux, servers to mobile, InstallShield X is the one >>installation-authoring solution that does it all. Learn more and >>evaluate today! http://www.installshield.com/Dev2Dev/0504 >>_______________________________________________ >>Alsa-devel mailing list >>Alsa-devel@lists.sourceforge.net >>https://lists.sourceforge.net/lists/listinfo/alsa-devel >> > > > > > > Disclaimer: The information contained in this transmission, including any > attachments, may contain confidential information of Matsushita Avionics > Systems Corporation. This transmission is intended only for the use of the > addressee(s) listed above. Unauthorized review, dissemination or other use > of the information contained in this transmission is strictly prohibited. > If you have received this transmission in error or have reason to believe > you are not authorized to receive it, please notify the sender by return > email and promptly delete the transmission > > > > > ------------------------------------------------------- > This SF.Net email is sponsored by the new InstallShield X. >>>From Windows to Linux, servers to mobile, InstallShield X is the one > installation-authoring solution that does it all. Learn more and > evaluate today! http://www.installshield.com/Dev2Dev/0504 > _______________________________________________ > Alsa-devel mailing list > Alsa-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/alsa-devel > ------------------------------------------------------- This SF.Net email is sponsored by the new InstallShield X. >>From Windows to Linux, servers to mobile, InstallShield X is the one installation-authoring solution that does it all. Learn more and evaluate today! http://www.installshield.com/Dev2Dev/0504