[Bug 12389] Re: Logging out on a LCD produces a fade effect that is not pleasant
** Changed in: gnome-session Importance: Unknown = Medium -- Logging out on a LCD produces a fade effect that is not pleasant https://bugs.launchpad.net/bugs/12389 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a direct subscriber. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 12389] Re: Logging out on a LCD produces a fade effect that is not pleasant
When visual effects are off, the fade is smooth on normal-faded. When visual effects are turned on, when going from smooth-faded it flashes and is bad. -- Logging out on a LCD produces a fade effect that is not pleasant https://bugs.launchpad.net/bugs/12389 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a direct subscriber. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 12389] Re: Logging out on a LCD produces a fade effect that is not pleasant
** Changed in: gnome-session (upstream) Status: Confirmed = Fix Released -- Logging out on a LCD produces a fade effect that is not pleasant https://bugs.launchpad.net/bugs/12389 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a direct subscriber. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 12389] Re: Logging out on a LCD produces a fade effect that is not pleasant
Please disregard my previous comment. That was a different problem and it's been solved. -- Logging out on a LCD produces a fade effect that is not pleasant https://bugs.launchpad.net/bugs/12389 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a direct subscriber. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 12389] Re: Logging out on a LCD produces a fade effect that is not pleasant
Here is a screen shot of how the background looks when I log out. ** Attachment added: Screenshot.png http://librarian.launchpad.net/6848047/Screenshot.png -- Logging out on a LCD produces a fade effect that is not pleasant https://launchpad.net/bugs/12389 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 12389] Re: Logging out on a LCD produces a fade effect that is not pleasant
the screenshot looks correct -- Logging out on a LCD produces a fade effect that is not pleasant https://launchpad.net/bugs/12389 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 12389] Re: Logging out on a LCD produces a fade effect that is not pleasant
I can imagine that the LCD panel itself (or its controller (or a even the graphics card)) reduces the color depth which is usually not that visible but becomes more prominent with dim colors. Therefore, Duncan Lithgow might even consider the screenshot to be ugly when displayed on his LCD. -- Logging out on a LCD produces a fade effect that is not pleasant https://launchpad.net/bugs/12389 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 12389] Re: Logging out on a LCD produces a fade effect that is not pleasant
Christof - you might be right, but how do we find out? And if it's ugly then it's ugly - the reason is a bit of a side issue. I can't find any GUI indication of what my color depth is, but I seem to remember it being 24 - does that sound right? On the assumption that you're right I have reopened bug #17561 - that seems the most appropriate place for my problem. Please take a look at the images I've uploaded there. -- Logging out on a LCD produces a fade effect that is not pleasant https://launchpad.net/bugs/12389 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 12389] Re: Logging out on a LCD produces a fade effect that is not pleasant
What is the output of the following command? apt-cache show gnome-session|grep Version Could you please make a screenshot? You won't be able to make a screenshot directly when the logout screen is active. But you can do it by using Xnest: 1. sudo apt-get install xnest 2. gdmflexiserver --xnest This will start a new gdm screen inside a window. You might need to add a new test user first, because gdm usually won't allow you to login twice. -- Logging out on a LCD produces a fade effect that is not pleasant https://launchpad.net/bugs/12389 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 12389] Re: Logging out on a LCD produces a fade effect that is not pleasant
It's still looking ugly in Ubuntu 6.04 on my laptop LCD screen - and I'm updating every day. -- Logging out on a LCD produces a fade effect that is not pleasant https://launchpad.net/bugs/12389 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 12389] Re: Logging out on a LCD produces a fade effect that is not pleasant
Do you mean 7.04 (feisty) or maybe 6.06 LTS (dapper)? When using feisty, you should be able to see a difference. I don't think that dapper will be updated just because of this bug since this is a rather minor issue. In case you are not using feisty: If everything goes well and the release schedule will not be altered, feisty will be released on april, 19th. -- Logging out on a LCD produces a fade effect that is not pleasant https://launchpad.net/bugs/12389 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 12389] Re: Logging out on a LCD produces a fade effect that is not pleasant
I'm running feisty. Sorry - I should have mentioned that. -- Logging out on a LCD produces a fade effect that is not pleasant https://launchpad.net/bugs/12389 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 12389] Re: Logging out on a LCD produces a fade effect that is not pleasant
Thank you for the work Christof, bug fixed with this upload: gnome-session (2.17.92-0ubuntu2) feisty; urgency=low * debian/patches/11_session_dialog.patch: - updated to show an error dialog when a command run doesn't work correctly (Ubuntu: #84858) * debian/patches/13_smoother_fading.patch: - patch update from Christof Krüger, works fine on xinerama and fix incorrect colors being used (Ubuntu: #12389) ** Changed in: gnome-session (Ubuntu) Status: Confirmed = Fix Released -- Logging out on a LCD produces a fade effect that is not pleasant https://launchpad.net/bugs/12389 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 12389] Re: Logging out on a LCD produces a fade effect that is not pleasant
The currently included patch is buggy. It uses a static variable times_called which should be private for each screen. Therefore, it doesn't work correctly in xinerama setups (usually one screen stops fading earlier and after that the other screen continues to fade for another 16 frames). The graphical glitches result from the optimization approach of the current patch. It uses 16 frames streched over 1500ms. Every new image is computed from the previous one. Therefore, rounding errors add up, yielding incorrect colors in the final image. However, the speedup is significant compared to the original implementation. The original implementation computes the correct frames by bending between the start image and end image. However, the computation is redundant. See my attached patch which implements fading without color glitches. In contrast to the original implementation it uses a lookup table which is precomputed for each frames. It just takes 256 bytes of memory. It is slower than the additive implementation in the current patch, but is faster than the original one. And it doesn't have the bug with multiple screens. ** Attachment added: smoother fading without color glitches and multiple screen bug http://librarian.launchpad.net/6582374/13_smoother_fading.patch -- Logging out on a LCD produces a fade effect that is not pleasant https://launchpad.net/bugs/12389 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 12389] Re: Logging out on a LCD produces a fade effect that is not pleasant
** Bug 60930 has been marked a duplicate of this bug -- Logging out on a LCD produces a fade effect that is not pleasant https://launchpad.net/bugs/12389 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 12389] Re: Logging out on a LCD produces a fade effect that is not pleasant
** Bug 37952 has been marked a duplicate of this bug ** Bug 39371 has been marked a duplicate of this bug -- Logging out on a LCD produces a fade effect that is not pleasant https://launchpad.net/bugs/12389 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 12389] Re: Logging out on a LCD produces a fade effect that is not pleasant
** Changed in: gnome-session (upstream) Status: Unconfirmed = Confirmed -- Logging out on a LCD produces a fade effect that is not pleasant https://launchpad.net/bugs/12389 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 12389] Re: Logging out on a LCD produces a fade effect that is not pleasant
Related to Bug #39371 ? -- Logging out on a LCD produces a fade effect that is not pleasant https://launchpad.net/bugs/12389 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 12389] Re: Logging out on a LCD produces a fade effect that is not pleasant
Confirmed upstream and still not really smooth so confirmed here. ** Changed in: gnome-session (Ubuntu) Status: Unconfirmed = Confirmed -- Logging out on a LCD produces a fade effect that is not pleasant https://launchpad.net/malone/bugs/12389 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
