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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID:
 <PH8PR12MB71128FAC43D4FF7BC3D64050EAF92@PH8PR12MB7112.namprd12.prod.outlook.com>
Date: Sat, 15 Feb 2025 16:18:44 +0000
From: Randy Kimmett <linuxish@...look.com>
To: "mchehab@...nel.org" <mchehab@...nel.org>
CC: "linux-media@...r.kernel.org" <linux-media@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Avermedia DVD EZMaker 7 video distortion on capture

Avermedia DVD EZMaker 7
Model: C039
VID:07CA PID:C039
Module used: cx231xx
Distro: Manjaro
Kernel version: 6.13.0-1
Components used: Conexant CX23012-11Z (according to https://www.linuxtv.org/wiki/index.php/AVerMedia_DVD_EZMaker_7_(C039))

When capturing analog video from my old Hi8 video camera (NTSC M), the captured video has banding and is grainy, it doesn't matter if I capture from the S-Video or Composite, the results are the same.  On my windows PC the capture is perfect.

dmesg output:

[31173.105709] cx231xx 3-1:1.1: New device AVerMedia TECHNOLOGIES, Inc. AVerMedia C039 USB Pure Capture @ 480 Mbps (07ca:c039) with 7 interfaces
[31173.106062] cx231xx 3-1:1.1: can't change interface 4 alt no. to 3: Max. Pkt size = 0
[31173.106065] cx231xx 3-1:1.1: Identified as Conexant VIDEO GRABBER (card=5)
[31173.106649] i2c i2c-13: Added multiplexed i2c bus 15
[31173.106704] i2c i2c-13: Added multiplexed i2c bus 16
[31173.214440] cx25840 12-0044: cx23102 A/V decoder found @ 0x88 (cx231xx #0-0)
[31175.444434] cx25840 12-0044: loaded v4l-cx231xx-avcore-01.fw firmware (16382 bytes)
[31175.493936] cx231xx 3-1:1.1: v4l2 driver version 0.0.3
[31175.620281] cx231xx 3-1:1.1: Registered video device video2 [v4l2]
[31175.620318] cx231xx 3-1:1.1: Registered VBI device vbi0
[31175.620423] cx231xx 3-1:1.1: audio EndPoint Addr 0x83, Alternate settings: 3
[31175.620426] cx231xx 3-1:1.1: video EndPoint Addr 0x84, Alternate settings: 5
[31175.620429] cx231xx 3-1:1.1: VBI EndPoint Addr 0x85, Alternate settings: 2
[31175.620431] cx231xx 3-1:1.1: sliced CC EndPoint Addr 0x86, Alternate settings: 2
[31175.620433] cx231xx 3-1:1.1: TS EndPoint Addr 0x81, Alternate settings: 6

https://bugzilla.kernel.org/show_bug.cgi?id=219764 (also contains a sample video clip of the issue)
https://www.linuxtv.org/wiki/index.php/AVerMedia_DVD_EZMaker_7_(C039)


Any help and/or suggestions would be greatly appreciated. :)