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trumee
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Joined: 02 Mar 2003
Posts: 523
Location: London,UK

PostPosted: Tue Sep 17, 2013 7:14 pm    Post subject: kernel 2.6.35 and /dev permissions Reply with quote

Hi,

I am forced to downgrade the kernel to 2.6.35 since my tv tuner card (PVR-500) works well with ivtv-1.41. Any kernel later than that has a later release of ivtv which gives me audio issues.

I was able to build the kernel using old gentoo-sources ebuild and genpatches. There are two issues I have.

1. The ownership of /dev/video* shows up as root:root instead of root:video.

Code:

Kernel 2.6.35
#ls -la /dev/video*
crw------- 1 root root  81,  0 Sep 18 00:33 /dev/video0
crw------- 1 root root  81,  5 Sep 18 00:33 /dev/video1
crw------- 1 root root  81,  9 Sep 18 00:33 /dev/video2
crw------- 1 root root  81,  3 Sep 18 00:33 /dev/video24
crw------- 1 root root  81,  8 Sep 18 00:33 /dev/video25
crw-rw---- 1 root video 81, 12 Sep 18 00:33 /dev/video26
crw-rw---- 1 root video 81, 17 Sep 18 00:33 /dev/video27
crw-rw---- 1 root video 81, 14 Sep 18 00:33 /dev/video3
crw------- 1 root root  81,  1 Sep 18 00:33 /dev/video32
crw------- 1 root root  81,  6 Sep 18 00:33 /dev/video33
crw------- 1 root root  81, 10 Sep 18 00:33 /dev/video34
crw-rw---- 1 root video 81, 15 Sep 18 00:33 /dev/video35
crw-rw---- 1 root video 81, 18 Sep 18 00:33 /dev/video4



In comparison kernel 3.10.7 shows the correct permissions and ownership which i want
Code:

Kernel 3.10.7
#ls -la /dev/video*
crw-rw---- 1 root video 81,  0 Sep 18 00:40 /dev/video0
crw-rw---- 1 root video 81,  5 Sep 18 00:40 /dev/video1
crw-rw---- 1 root video 81,  9 Sep 18 00:40 /dev/video2
crw-rw---- 1 root video 81,  3 Sep 18 00:40 /dev/video24
crw-rw---- 1 root video 81,  8 Sep 18 00:40 /dev/video25
crw-rw---- 1 root video 81, 12 Sep 18 00:40 /dev/video26
crw-rw---- 1 root video 81, 17 Sep 18 00:40 /dev/video27
crw-rw---- 1 root video 81, 14 Sep 18 00:40 /dev/video3
crw-rw---- 1 root video 81,  1 Sep 18 00:40 /dev/video32
crw-rw---- 1 root video 81,  6 Sep 18 00:40 /dev/video33
crw-rw---- 1 root video 81, 10 Sep 18 00:40 /dev/video34
crw-rw---- 1 root video 81, 15 Sep 18 00:40 /dev/video35
crw-rw---- 1 root video 81, 18 Sep 18 00:41 /dev/video4




2. The second problem i have is that with 2.6.35, the bootup is slow with lot of time taken by "Waiting for uevents to be processed..."


Any help will be much appreciated.

Thanks
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Hu
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Joined: 06 Mar 2007
Posts: 11440

PostPosted: Tue Sep 17, 2013 10:17 pm    Post subject: Reply with quote

Could you provide a link to the bug report about the audio issues seen with later versions?
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trumee
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Joined: 02 Mar 2003
Posts: 523
Location: London,UK

PostPosted: Fri Sep 20, 2013 6:28 pm    Post subject: Reply with quote

Sorry dont have a bug report (yet). The issue is described here though.
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