Hi again, I don't have compiz installed. Using YUYV, I only got 5 FPS (compared to 20-23 FPS with MJPG) but no strange flickering.
I've tried disabling hardware acceleration, and I only got less FPS but the flickering is still here for MJPG (with YUYV I only got 1-2 FPS). Also, I've also tried with 320*240 to see if it's because of the CPU, but the CPU load is below 50%. Someone on Logitech side has also asked me to increase log trace while trying to use mplayer. The results are here: http://forums.quickcamteam.net/showthread.php?tid=860 I hope that it may be useful for you... Thank you, I appreciate your help ! On Wed, 24 Jun 2009 21:28:09 +0100, Paulo Assis <[email protected]> wrote : > Hi, > Were you streaming YUYV or MJPG ? Does it make any difference if you > change between the two formats ? > > Could you try disabling hardware accelaration: guvcview --hwd_acel=0 > and check if the flickering gets any better. > > Best regards > Paulo, > > 2009/6/24 Saint Germain <[email protected]> > > > Hello, > > > > I've just returned my Quickcam Pro 9000 and took a Vision Pro (BCD > > 0.9) and I got exactly the same problem (even worse it seems). > > > > I tried your test, and I only got 23 fps with still a lot of > > flickering... > > > > Same problem with 2 (slightly) different camera and 2 linux kernel > > (2.6.26 and 2.6.30) ! > > > > I really don't know what is wrong here... > > > > Thanks anyway for your help ! > > > > On Wed, 24 Jun 2009 09:57:18 +0100, Paulo Assis <[email protected]> > > wrote : > > > > > Hi, > > > Could you run the following test with guvcview: > > > > > > make sure you disable "Exposure, Auto Priority", set exposure to > > > manual. Then try setting exposure to 10000 (the lowest exposure > > > possible) the image should be very dark, but the frame rate should > > > reach the value you set for the camera (up to 30 fps) > > > If it doesn't then there is something wrong with the camera. > > > > > > Best regards, > > > Paulo > > > > > > 2009/6/24 Saint Germain <[email protected]> > > > > > > > On Sun, 21 Jun 2009 01:00:26 +0200, Saint Germain > > > > <[email protected]> wrote : > > > > > > > > > I've just bought a Logitech Quickcam Pro 9000 (3rd > > > > > generation, BCD 0.08) for my Debian Testing (kernel > > > > > 2.6.26-2-686) and have some frame dropped issues with it. > > > > > > > > > > [snip] > > > > > > > > > > Do you think that the problem is in: > > > > > 1) the webcam hardware/firmware > > > > > 2) the kernel/uvc version > > > > > 3) mplayer/guvcview/... > > > > > > > > > > > > > For information, I've just tried with linux kernel 2.6.30-1 and > > > > I have the same problem... > > > > > > > > I think that I'll return the product and go for a Vision Pro > > > > which should work out-of-the-box (I hope). > > > > > > > > Regards, _______________________________________________ Linux-uvc-devel mailing list [email protected] https://lists.berlios.de/mailman/listinfo/linux-uvc-devel
