uvc-вебкамера, старое железо, максимальное разрешение

0

0

Приобрёл себе Logitech S7500, эффективное разрешение 1.3 мегапикселя:

~> luvcview -L
...
{ pixelformat = 'MJPG', description = 'MJPEG' }
{ discrete: width = 160, height = 120 }
Time interval between frame: 1/30, 1/25, 1/20, 1/15, 1/10, 1/5,
{ discrete: width = 176, height = 144 }
Time interval between frame: 1/30, 1/25, 1/20, 1/15, 1/10, 1/5,
{ discrete: width = 320, height = 240 }
Time interval between frame: 1/30, 1/25, 1/20, 1/15, 1/10, 1/5,
{ discrete: width = 352, height = 288 }
Time interval between frame: 1/30, 1/25, 1/20, 1/15, 1/10, 1/5,
{ discrete: width = 640, height = 480 }
Time interval between frame: 1/30, 1/25, 1/20, 1/15, 1/10, 1/5,
{ discrete: width = 960, height = 720 }
Time interval between frame: 1/15, 1/10, 1/5,
{ pixelformat = 'YUYV', description = 'YUV 4:2:2 (YUYV)' }
{ discrete: width = 160, height = 120 }
Time interval between frame: 1/30, 1/25, 1/20, 1/15, 1/10, 1/5,
{ discrete: width = 176, height = 144 }
Time interval between frame: 1/30, 1/25, 1/20, 1/15, 1/10, 1/5,
{ discrete: width = 320, height = 240 }
Time interval between frame: 1/30, 1/25, 1/20, 1/15, 1/10, 1/5,
{ discrete: width = 352, height = 288 }
Time interval between frame: 1/30, 1/25, 1/20, 1/15, 1/10, 1/5,
{ discrete: width = 640, height = 480 }
Time interval between frame: 1/30, 1/25, 1/20, 1/15, 1/10, 1/5,
{ discrete: width = 960, height = 720 }
Time interval between frame: 1/10, 1/5,
{ discrete: width = 1280, height = 960 }
Time interval between frame: 2/15, 1/5,

Это на моём рабочем относительно новом железе.
Проблема в том, что Pentium-II 350/S3Trio 3D 4MB/USB 1.1 с тем же
самым софтом (ArchLinux, всё bleeding edge) показывает гораздо меньше
разрешений:

{ pixelformat = 'MJPG', description = 'MJPEG' }
{ discrete: width = 160, height = 120 }
Time interval between frame: 1/30, 1/25, 1/20, 1/15, 1/10, 1/5,
{ discrete: width = 176, height = 144 }
Time interval between frame: 1/30, 1/25, 1/20, 1/15, 1/10, 1/5,
{ discrete: width = 320, height = 240 }
Time interval between frame: 1/30, 1/25, 1/20, 1/15, 1/10, 1/5,
{ discrete: width = 352, height = 288 }
Time interval between frame: 1/30, 1/25, 1/20, 1/15, 1/10, 1/5,
{ discrete: width = 640, height = 480 }
Time interval between frame: 1/30, 1/25, 1/20, 1/15, 1/10, 1/5,
{ pixelformat = 'YUYV', description = 'YUV 4:2:2 (YUYV)' }
{ discrete: width = 160, height = 120 }
Time interval between frame: 1/30, 1/25, 1/20, 1/15, 1/10, 1/5,
{ discrete: width = 176, height = 144 }
Time interval between frame: 1/30, 1/25, 1/20, 1/15, 1/10, 1/5,

Т.е. нужные мне 1.3 мегапикселя я на нём не получу, а надо бы
(к сожалению ничего другого под кам-сервер у меня нет). Как бы решить
проблему?