Am Mittwoch 10 Juni 2009 21:22:05 schrieb aL3xa: > Hi all, > > for a while I've been suffering from an annoying bug... I cannot dig > what's causing this problem, but at some point my webcam stops working > and I get hundred of these kind of messages in dmesg: > > [55419.872940] sn9c20x: Read register failed 0x1005 > [55419.874072] sn9c20x: Read register failed 0x1005 > [55419.874333] sn9c20x: Read register failed 0x1005 > [55419.874820] sn9c20x: Read register failed 0x1005 > [55419.875322] sn9c20x: Read register failed 0x1005 > [55419.875821] sn9c20x: Read register failed 0x1005 > [55419.876326] sn9c20x: Read register failed 0x1005 > [55419.876825] sn9c20x: Read register failed 0x1005 > [55419.877327] sn9c20x: Read register failed 0x1005 > [55419.877828] sn9c20x: Read register failed 0x1005 > [55419.878205] sn9c20x: Read register failed 0x1005 > [55419.878707] sn9c20x: Read register failed 0x1005 > [55420.376206] sn9c20x: Read register failed 0x1005 > [55420.376444] sn9c20x: Read register failed 0x1005 > > And sometimes, on shutdown these lines appear repeatedly and my > usplash is a bit messed-up... But, I've noticed one thing: if I run > Cheese, I get this in dmesg: > > [55425.417113] sn9c20x: Write register failed index = 0x10FB > [55425.417610] sn9c20x: Read register failed 0x1005 > [55425.419365] sn9c20x: Using yuv420 output format > > And after that, my webcam works again... > Should I run Cheese in background to get my webcam working all the > time?! =D > I've noticed that this is a common bug... but, if you do, how do you > solved it?! > --~--~---------~--~----~------------~-------~--~----~ > Lets make microdia webcams plug'n play, (currently plug'n pray) > To post to this group, send email to [email protected] > Visit us online https://groups.google.com/group/microdia > -~----------~----~----~----~------~----~------~--~---
This problem can only come directly from the usb subsystem. Do you use a very long cable or a lot of usb-devices on one port? GWater
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