I am the submitter of this bug, and it should be closed for now. I have not been able to reproduce the correct function of the skype .deb file on Jaunty on the Asus 1000HE, which means this may not be a regression. (Believe me, I've tried... A lot...) Installing the current skype .deb file on Jaunty UNR has not produced good (well lit) webcam images as I believed when I reported this. Something else may have already been on the system because of my testing, but what I do not know. Perhaps something from the Medibuntu repository.
The webcam problem is not resolved -- extremely dark webcam images using the skype .deb from the skype site -- but I cannot demonstrate this to be a regression at this time. If I can reproduce it as a regression again. I will create another bug report with my findings. ** Description changed: - Regression: skype webcam (Chicony CNF7129) image very dark on Asus 1000HE on Karmic (9.10) UNR, + Regression: skype webcam (Chicony CNF7129) image very dark on Asus 1000HE on Karmic (9.10) UNR, works on Jaunty (9.04) UNR Summary: Skype has regressed in Karmic UNR on Asus 1000HE - CNF7129 camera image extremely dark. - Webcam image works in Jaunty UNR on Asus 1000HE (and Asus 901 as well - same camera). - Specific to skype; cheese works fine on both Jaunty and Karmic. Initial image - is just a little dark on startup, then darkens to almost black after a fraction + Webcam image works in Jaunty UNR on Asus 1000HE. + Specific to skype; cheese works fine on both Jaunty and Karmic. Initial image + is just a little dark on startup, then darkens to almost black after a fraction of a second. Hardware: Asus EEE 1000HE / Chicony CNF7129 webcam (builtin) - Skype: skype-ubuntu-intrepid_2.1.0.81-1_i386.deb (current) from - http://www.skype.com/download/skype/linux/choose/ (Ubuntu 8.10+ 32 bit) - (The same .deb was tested on Jaunty UNR (works) and Karmic UNR (fails)) + Skype: skype-ubuntu-intrepid_2.1.0.81-1_i386.deb (current) from + http://www.skype.com/download/skype/linux/choose/ (Ubuntu 8.10+ 32 bit) + (The same .deb was tested on Jaunty UNR (works) and Karmic UNR (fails)) Some related packages: - Jaunty UNR (tested using liveusb and/or installation): - kernel from distro(liveusb) - libv4l-0 from distro(liveusb) or 0.5.8-1 + Jaunty UNR (tested using liveusb and/or installation): + kernel from distro(liveusb) + libv4l-0 from distro(liveusb) or 0.5.8-1 - lsmod | fgrep vid - uvcvideo 63368 0 - compat_ioctl32 9344 1 uvcvideo - videodev 41600 1 uvcvideo - v4l1_compat 21764 2 uvcvideo,videodev - video 25872 0 - output 11008 1 video + lsmod | fgrep vid + uvcvideo 63368 0 + compat_ioctl32 9344 1 uvcvideo + videodev 41600 1 uvcvideo + v4l1_compat 21764 2 uvcvideo,videodev + video 25872 0 + output 11008 1 video - Karmic: - kernel 2.6.31-20-generic - libv4l-0 0.6.0-1 + Karmic: + kernel 2.6.31-20-generic + libv4l-0 0.6.0-1 - lsmod | fgrep vid - uvcvideo 59080 0 - videodev 36736 1 uvcvideo - v4l1_compat 14336 2 uvcvideo,videodev - video 19380 0 - output 2780 1 video + lsmod | fgrep vid + uvcvideo 59080 0 + videodev 36736 1 uvcvideo + v4l1_compat 14336 2 uvcvideo,videodev + video 19380 0 + output 2780 1 video Other scenarios tested: - - Tried skype_2.0.0.72.orig.tar.gz on Karmic UNR. Webcam image is just as bad/dark. - This version of skype also works on the Asus 901 / Jaunty (same camera). - Not surprising, given that the latest skype .deb works on Jaunty but gives - dark images on Karmic. (Both skype's work on Jaunty; latest fails on Karmic.) + - Tried skype_2.0.0.72.orig.tar.gz on Karmic UNR. Webcam image is just as bad/dark. + Not surprising, given that the latest skype .deb works on Jaunty but gives + dark images on Karmic. (Both skype's work on Jaunty; latest fails on Karmic.) - Tried 'LD_PRELOAD=/usr/lib/libv4l/v4l1compat.so skype'. No effect. - + - Tried the latest libv4l-0 from https://launchpad.net/~libv4l/+archive/ppa - No improvement. According to the page, this includes what's below, but no improvement. + No improvement. According to the page, this includes what's below, but no improvement. - Package Version Uploaded by - gtk-v4l 0.1-1 Stephane Marguet (2010-02-25) - libv4l 0.6.4-1+hg20100220~kkv4l2 Stephane Marguet (2010-03-10) - v4l-utils 0.7.91-1~kkv4l1 Stephane Marguet (2010-03-12) - v4l2ucp 2.0.2-1~kkv4l1 Stephane Marguet (2010-01-29) + Package Version Uploaded by + gtk-v4l 0.1-1 Stephane Marguet (2010-02-25) + libv4l 0.6.4-1+hg20100220~kkv4l2 Stephane Marguet (2010-03-10) + v4l-utils 0.7.91-1~kkv4l1 Stephane Marguet (2010-03-12) + v4l2ucp 2.0.2-1~kkv4l1 Stephane Marguet (2010-01-29) - Tried luvcview. Adjustments to brightness and/or gamma are not sufficient - to get an image as bright/balanced as cheese. Changes have an effect, - but they are minimal, still too dark to be acceptable, and not nearly - as good as cheese + to get an image as bright/balanced as cheese. Changes have an effect, + but they are minimal, still too dark to be acceptable, and not nearly + as good as cheese - Tried xawtv/v4lctl. Effects are the same as luvcview, and still too dark and - not nearly as good as cheese + not nearly as good as cheese - Tried guvcview. Same as luvcview and v4lctl / not enough effect. - None of the V4L tools above provide access to an auto exposure or auto gain - setting. Interesting, since the "initially some brighter, fade to almost black" - effect on startup really seems like an "exposure" adjustment taking place, and - an auto exposure exposure seems to be in effect for cheese. + setting. Interesting, since the "initially some brighter, fade to almost black" + effect on startup really seems like an "exposure" adjustment taking place, and + an auto exposure exposure seems to be in effect for cheese. These are my current conjectures: - - Problem is not the skype deliverable (.deb). Same .deb file, same hardware. - Jaunty works, Karmic fails. Not the CNF7129 either, since cheese works on both - Jaunty and Karmic. + - Problem is not the skype deliverable (.deb). Same .deb file, same hardware. + Jaunty works, Karmic fails. Not the CNF7129 either, since cheese works on both + Jaunty and Karmic. - I've read that Jaunty may be V4L1, Karmic V4L2, skype build uses V4L1. - If correct, could be a V4L1/2 compatibility problem. Might even be an - auto exposure or auto gain that is missing from or bad in the compatibility API. - None of the *uvcview tools show exposure/gain as being settable. The skype - startup behavior "looks like" a fairly quick exposure compensation on webcam startup. - As a photographer, this looks *so* much like an auto exposure control missing. - This could also explain why cheese works and skype fails. + If correct, could be a V4L1/2 compatibility problem. Might even be an + auto exposure or auto gain that is missing from or bad in the compatibility API. + None of the *uvcview tools show exposure/gain as being settable. The skype + startup behavior "looks like" a fairly quick exposure compensation on webcam startup. + As a photographer, this looks *so* much like an auto exposure control missing. + This could also explain why cheese works and skype fails. - Could be in the video module/driver (uvcvideo). I don't know how Jaunty differs - from Karmic in its webcam drivers. (How can this explain cheese working and - skype failing?) + from Karmic in its webcam drivers. (How can this explain cheese working and + skype failing?) - - Cheese images are somewhat brighter than skype images, even on Jaunty UNR. Not terribly - different, but brighter. Maybe for Karmic, cheese images were "adjusted down", - which would make skype images even darker. Again as a photographer, I don't - think this is the explanation -- the skype images are *much* darker, almost black -- - and much darker than explained by just darkening the cheese images a little bit. - But I cannot rule this out entirely. + - Cheese images are somewhat brighter than skype images, even on Jaunty UNR. Not terribly + different, but brighter. Maybe for Karmic, cheese images were "adjusted down", + which would make skype images even darker. Again as a photographer, I don't + think this is the explanation -- the skype images are *much* darker, almost black -- + and much darker than explained by just darkening the cheese images a little bit. + But I cannot rule this out entirely. -- Regression: skype webcam (Chicony CNF7129) image very dark on Asus 1000HE on Karmic (9.10) UNR https://bugs.launchpad.net/bugs/542042 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
