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戴尔摄像头在Linux瞎了5年,真相只是型号记错

  • 2026-08-19 10:40:09
戴尔摄像头在Linux瞎了5年,真相只是型号记错

一个坚持了5年的技术难题,最后被证明只是抄错了一个型号。戴尔笔记本摄像头在Linux下摸黑5年,谜底揭开的那一刻,尴尬的是戴尔。

一、5年都没人管的摄像头

Linux内核开发者萨汉·尼桑卡近日向内核邮件列表提交了一套包含3个补丁的系列,正式为戴尔Latitude 7320可拆卸笔记本启用前置摄像头支持。

这台二合一笔记本的前置摄像头,在Linux下5年来从未正常工作过。5年,不是5天。期间没有任何人发现问题的根源。

二、真相简单到离谱

萨汉·尼桑卡检查后发现:摄像头标称OV5678,实际芯片却是OV5675——而OV5675早就有现成的Linux驱动,装上就能用。

问题出在固件。系统固件里登记的型号是OVTI5678,这个ID没有任何驱动认领。一个型号抄错,驱动认不出芯片,摄像头就这么被写废了5年。

三、补丁来了,但别高兴太早

这批补丁已提交到Linux内核邮件列表,只等维护者审核合入。顺利的话,用户升级内核就能用上摄像头,不用折腾第三方驱动。

但遗憾还在:这颗传感器是4x4 RGB-IR彩色滤光阵列,每4个像素就有1个是红外,现行接口没有对应格式,画面色彩无法完全还原;后置摄像头的支持也还没到位。

编辑点评:这事最扎心的不是技术,是态度。一个型号ID对不上,排查成本低到可以忽略,愣是让用户等了5年。要不是有开发者闲得翻代码,这台机器的摄像头可能还要继续瞎下去。硬件厂商对Linux用户什么态度,全写在这个型号里了。

—— END ——

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  139. /yingpanguazai/ssd/ssd1/www/f.mffb.com.cn/runtime/temp/067d451b9a0c665040f3f1bdd3293d68.php ( 11.98 KB )
  140. /yingpanguazai/ssd/ssd1/www/f.mffb.com.cn/vendor/topthink/think-trace/src/Html.php ( 4.42 KB )
  1. CONNECT:[ UseTime:0.001205s ] mysql:host=127.0.0.1;port=3306;dbname=f_mffb;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001816s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.008872s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.008272s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.001770s ]
  6. SELECT * FROM `set` [ RunTime:0.001248s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.001912s ]
  8. SELECT * FROM `article` WHERE `id` = 509628 LIMIT 1 [ RunTime:0.003655s ]
  9. UPDATE `article` SET `lasttime` = 1787300980 WHERE `id` = 509628 [ RunTime:0.002347s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 67 LIMIT 1 [ RunTime:0.000686s ]
  11. SELECT * FROM `article` WHERE `id` < 509628 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.001337s ]
  12. SELECT * FROM `article` WHERE `id` > 509628 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.008703s ]
  13. SELECT * FROM `article` WHERE `id` < 509628 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.002058s ]
  14. SELECT * FROM `article` WHERE `id` < 509628 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.013252s ]
  15. SELECT * FROM `article` WHERE `id` < 509628 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.022674s ]
0.246704s