linux-kernel - Re: Avermedia DVD EZMaker 7 video distortion on capture

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Message-ID: <bc026cfe-1f67-47dd-9ef5-6025509bf194@xs4all.nl>
Date: Fri, 28 Feb 2025 10:03:23 +0100
From: Hans Verkuil <hverkuil@...all.nl>
To: Randy K <linuxish@...look.com>
Cc: linux-kernel@...r.kernel.org, linux-media@...r.kernel.org,
 mchehab@...nel.org
Subject: Re: Avermedia DVD EZMaker 7 video distortion on capture

On 28/02/2025 01:59, Randy K wrote:
> I mailed the INF file to you Hans.
> 
> Please take a look to see if you find anything there that may be 
> helpful, and of course, your help is very much appreciated.
> 
> 
> Thanks again Hans,
> 
>    Randy
> 
> 

Can you try to load the driver with the 'card=9' module option? Based on the
.inf file the correct GPIO to enable the AGC is GPIO 0x0c, while the currently
selected card uses GPIO 0x1c. Card 9 (Hauppauge USB Live 2) is identical to
card 5, except for using GPIO 0x0c. So I am hopeful that switching to card 9
will fix this issue.

Instead of using the card=9 option you can also try this patch:

diff --git a/drivers/media/usb/cx231xx/cx231xx-cards.c b/drivers/media/usb/cx231xx/cx231xx-cards.c
index 691f073892b3..c01384cce2ca 100644
--- a/drivers/media/usb/cx231xx/cx231xx-cards.c
+++ b/drivers/media/usb/cx231xx/cx231xx-cards.c
@@ -1014,7 +1014,7 @@ struct usb_device_id cx231xx_id_table[] = {
 	 .driver_info = CX231XX_BOARD_CNXT_RDU_250},
 	/* AverMedia DVD EZMaker 7 */
 	{USB_DEVICE(0x07ca, 0xc039),
-	 .driver_info = CX231XX_BOARD_CNXT_VIDEO_GRABBER},
+	 .driver_info = CX231XX_BOARD_HAUPPAUGE_USBLIVE2},
 	{USB_DEVICE(0x2040, 0xb110),
 	 .driver_info = CX231XX_BOARD_HAUPPAUGE_USB2_FM_PAL},
 	{USB_DEVICE(0x2040, 0xb111),


Regards,

	Hans