Bug#408460: iceweasel: pages with non-moving backgrounds scroll very slowly
On Thu, 24 Dec 2009 16:33:46 +0100 Mike Hommey wrote: Version: 3.0.1-1 Hi, Sorry for the late reply. On Tue, Jan 30, 2007 at 12:16:21AM -0500, Michael Gilbert wrote: On 1/29/07, Mike Hommey wrote: I also heard activating EXA instead of XAA in the X configuration improved the performance. i tried EXA with the nv X driver (http://wiki.x.org/wiki/ExaStatus), and it didn't make any difference with the pages that are slow to scroll/render on iceweasel. It should have gotten much much better with iceweasel 3.0. I'll close this bug, but please feel free to reopen if that is not true. On Wed, Jan 14, 2009 at 02:12:43AM +0300, Dmitry Semyonov wrote: On Fri, 26 Jan 2007 07:48:03 +0100, Mike Hommey wrote: A workaround for this would be to set MOZ_DISABLE_PANGO. See the /usr/doc/share/iceweasel/README.Debian file. Currently, /usr/share/doc/iceweasel/README.Debian states the following: From version 3.0~b4-1, pango is the only font backend upstream. MOZ_DISABLE_PANGO now has no effect. I'm not sure if I encountered the same issue, but it looks pretty similar, except that it is caused by non-moving _foreground_ rather than background. Scrolling in Gmail becomes really slow when reading conversation thread with several messages. In this case, a tool-tip with next message sender name is displayed in the right down corner of the browser window, and the whole page is scrolled under the tool-tip. BTW, from my point of view the severity should be higher than wishlist because the issue causes major usability deficiency for such popular web application like Gmail. While I do understand it could be a problem, I do think it is not the same problem. Please feel free to file a new bug if that still happens with iceweasel 3.5. from my perspective, this has not been an observable problem for a while now, so i concur with the doneness. thanks! mike -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Bug#408460: iceweasel: pages with non-moving backgrounds scroll very slowly
On Fri, 26 Jan 2007 07:48:03 +0100, Mike Hommey wrote: A workaround for this would be to set MOZ_DISABLE_PANGO. See the /usr/doc/share/iceweasel/README.Debian file. Currently, /usr/share/doc/iceweasel/README.Debian states the following: From version 3.0~b4-1, pango is the only font backend upstream. MOZ_DISABLE_PANGO now has no effect. I'm not sure if I encountered the same issue, but it looks pretty similar, except that it is caused by non-moving _foreground_ rather than background. Scrolling in Gmail becomes really slow when reading conversation thread with several messages. In this case, a tool-tip with next message sender name is displayed in the right down corner of the browser window, and the whole page is scrolled under the tool-tip. BTW, from my point of view the severity should be higher than wishlist because the issue causes major usability deficiency for such popular web application like Gmail. -- ...Bye..Dmitry. -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Bug#408460: iceweasel: pages with non-moving backgrounds scroll very slowly
On Tue, Jan 30, 2007 at 07:51:09AM +0100, Mike Hommey wrote: Firefox's use of Pango is to blame. Other gnome applications are not that slow to display text, though contrary to all bug reporters I don't find Firefox particularly slow... That will hopefully change when they'll use the cairo backend. I was dubious myself at first; performance complaints about large GUI applications don't generally merit close attention. However, in this case, it was a severe regression from an earlier release, and I was able to see an extreme and measurable difference myself by toggling the environment variable. https://launchpad.net/ubuntu/+source/firefox/+bug/32561 is the relevant Ubuntu bug report. -- - mdz -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Bug#408460: iceweasel: pages with non-moving backgrounds scroll very slowly
On Mon, Jan 29, 2007 at 07:51:31AM +0100, Mike Hommey wrote: On Sun, Jan 28, 2007 at 07:50:00PM -0500, Michael Gilbert [EMAIL PROTECTED] wrote: severity 408460 wishlist thanks On 1/26/07, Mike Hommey wrote: A workaround for this would be to set MOZ_DISABLE_PANGO. See the /usr/doc/share/iceweasel/README.Debian file. this behavior can be annoying to the user. would it be possible to automatically set this option based on the language? for example, only use pango for those languages that have rendering issues without pango. Ubuntu does this, based on the user locale, and I think this is a very bad idea. The user locale is not necessarily related to the language used in the pages the user will look at. No, but it is our best approximation of whether that locale is especially important to the user (which isn't an especially good one). It is trivial for a power user to override this if it guesses incorrectly. I also heard activating EXA instead of XAA in the X configuration improved the performance. Do you have a reference for this which we could follow up? I agree that the current Ubuntu solution isn't ideal, but it was unacceptable for performance to be as poor as it was for very common use cases. -- - mdz -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Bug#408460: iceweasel: pages with non-moving backgrounds scroll very slowly
On 1/29/07, Mike Hommey wrote: I also heard activating EXA instead of XAA in the X configuration improved the performance. i tried EXA with the nv X driver (http://wiki.x.org/wiki/ExaStatus), and it didn't make any difference with the pages that are slow to scroll/render on iceweasel. mike -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Bug#408460: iceweasel: pages with non-moving backgrounds scroll very slowly
* Matt Zimmerman ([EMAIL PROTECTED]) wrote: On Mon, Jan 29, 2007 at 07:51:31AM +0100, Mike Hommey wrote: On Sun, Jan 28, 2007 at 07:50:00PM -0500, Michael Gilbert [EMAIL PROTECTED] wrote: severity 408460 wishlist thanks On 1/26/07, Mike Hommey wrote: A workaround for this would be to set MOZ_DISABLE_PANGO. See the /usr/doc/share/iceweasel/README.Debian file. this behavior can be annoying to the user. would it be possible to automatically set this option based on the language? for example, only use pango for those languages that have rendering issues without pango. Ubuntu does this, based on the user locale, and I think this is a very bad idea. The user locale is not necessarily related to the language used in the pages the user will look at. No, but it is our best approximation of whether that locale is especially important to the user (which isn't an especially good one). It is trivial for a power user to override this if it guesses incorrectly. The other issue is one of surprise. A weird side effect of installing a locale will be that Firefox suddenly behaves differently and the connection will be completely non-obvious to the user. I also heard activating EXA instead of XAA in the X configuration improved the performance. Do you have a reference for this which we could follow up? I agree that the current Ubuntu solution isn't ideal, but it was unacceptable for performance to be as poor as it was for very common use cases. It really is a crappy situation, with both Pango and non-Pango renderers being broken in their own special ways. I wonder if any work is being done at speeding up Pango? Or is it Firefox's use of Pango that's to blame? -- Eric Dorland [EMAIL PROTECTED] ICQ: #61138586, Jabber: [EMAIL PROTECTED] 1024D/16D970C6 097C 4861 9934 27A0 8E1C 2B0A 61E9 8ECF 16D9 70C6 signature.asc Description: Digital signature
Bug#408460: iceweasel: pages with non-moving backgrounds scroll very slowly
On Tue, Jan 30, 2007 at 01:07:13AM -0500, Eric Dorland [EMAIL PROTECTED] wrote: * Matt Zimmerman ([EMAIL PROTECTED]) wrote: On Mon, Jan 29, 2007 at 07:51:31AM +0100, Mike Hommey wrote: On Sun, Jan 28, 2007 at 07:50:00PM -0500, Michael Gilbert [EMAIL PROTECTED] wrote: severity 408460 wishlist thanks On 1/26/07, Mike Hommey wrote: A workaround for this would be to set MOZ_DISABLE_PANGO. See the /usr/doc/share/iceweasel/README.Debian file. this behavior can be annoying to the user. would it be possible to automatically set this option based on the language? for example, only use pango for those languages that have rendering issues without pango. Ubuntu does this, based on the user locale, and I think this is a very bad idea. The user locale is not necessarily related to the language used in the pages the user will look at. No, but it is our best approximation of whether that locale is especially important to the user (which isn't an especially good one). It is trivial for a power user to override this if it guesses incorrectly. The other issue is one of surprise. A weird side effect of installing a locale will be that Firefox suddenly behaves differently and the connection will be completely non-obvious to the user. I also heard activating EXA instead of XAA in the X configuration improved the performance. Do you have a reference for this which we could follow up? I agree that the current Ubuntu solution isn't ideal, but it was unacceptable for performance to be as poor as it was for very common use cases. It really is a crappy situation, with both Pango and non-Pango renderers being broken in their own special ways. I wonder if any work is being done at speeding up Pango? Or is it Firefox's use of Pango that's to blame? Firefox's use of Pango is to blame. Other gnome applications are not that slow to display text, though contrary to all bug reporters I don't find Firefox particularly slow... That will hopefully change when they'll use the cairo backend. Mike -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Bug#408460: iceweasel: pages with non-moving backgrounds scroll very slowly
severity 408460 wishlist thanks On 1/26/07, Mike Hommey wrote: A workaround for this would be to set MOZ_DISABLE_PANGO. See the /usr/doc/share/iceweasel/README.Debian file. this behavior can be annoying to the user. would it be possible to automatically set this option based on the language? for example, only use pango for those languages that have rendering issues without pango. thanks for your consideration. mike -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Bug#408460: iceweasel: pages with non-moving backgrounds scroll very slowly
* Michael Gilbert ([EMAIL PROTECTED]) wrote: severity 408460 wishlist thanks On 1/26/07, Mike Hommey wrote: A workaround for this would be to set MOZ_DISABLE_PANGO. See the /usr/doc/share/iceweasel/README.Debian file. this behavior can be annoying to the user. would it be possible to automatically set this option based on the language? for example, only use pango for those languages that have rendering issues without pango. thanks for your consideration. Ubuntu has a kind of hack to do that based on the installed locale, but I don't consider that to be a very elegant solution and kind of weirdly unpredictable. I haven't heard of a better solution. -- Eric Dorland [EMAIL PROTECTED] ICQ: #61138586, Jabber: [EMAIL PROTECTED] 1024D/16D970C6 097C 4861 9934 27A0 8E1C 2B0A 61E9 8ECF 16D9 70C6 signature.asc Description: Digital signature
Bug#408460: iceweasel: pages with non-moving backgrounds scroll very slowly
On Sun, Jan 28, 2007 at 07:50:00PM -0500, Michael Gilbert [EMAIL PROTECTED] wrote: severity 408460 wishlist thanks On 1/26/07, Mike Hommey wrote: A workaround for this would be to set MOZ_DISABLE_PANGO. See the /usr/doc/share/iceweasel/README.Debian file. this behavior can be annoying to the user. would it be possible to automatically set this option based on the language? for example, only use pango for those languages that have rendering issues without pango. Ubuntu does this, based on the user locale, and I think this is a very bad idea. The user locale is not necessarily related to the language used in the pages the user will look at. I also heard activating EXA instead of XAA in the X configuration improved the performance. Mike -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Bug#408460: iceweasel: pages with non-moving backgrounds scroll very slowly
Package: iceweasel Version: 2.0.0.1+dfsg-2 Severity: normal using the mousewheel to scroll on pages that have non-moving backgrounds (for example http://www.jonobacon.org) is excessively slowly with iceweasel. note that upstream firefox (2.0.0.1) does not suffer from this problem (as can be tested by viewing the example page under that browser). other browsers affected by this bug are iceape (1.0.7-2) and galeon (2.0.2-4). unaffected are konqueror (3.5.5a) and epiphany (2.14.3-4). thanks for the hard work. mike -- System Information: Debian Release: 4.0 APT prefers testing APT policy: (600, 'testing'), (500, 'unstable'), (400, 'stable'), (1, 'experimental') Architecture: i386 (i686) Shell: /bin/sh linked to /bin/bash Kernel: Linux 2.6.18-3-686 Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) Versions of packages iceweasel depends on: ii debianutils 2.17 Miscellaneous utilities specific t ii fontconfig2.4.2-1generic font configuration library ii libatk1.0-0 1.12.4-1 The ATK accessibility toolkit ii libc6 2.3.6.ds1-8GNU C Library: Shared libraries ii libcairo2 1.2.4-4The Cairo 2D vector graphics libra ii libfontconfig12.4.2-1generic font configuration library ii libfreetype6 2.2.1-5FreeType 2 font engine, shared lib ii libgcc1 1:4.1.1-21 GCC support library ii libglib2.0-0 2.12.4-2 The GLib library of C routines ii libgtk2.0-0 2.8.20-3 The GTK+ graphical user interface ii libjpeg62 6b-13 The Independent JPEG Group's JPEG ii libmyspell3c2 1:3.1-18 MySpell spellchecking library ii libpango1.0-0 1.14.8-4 Layout and rendering of internatio ii libpng12-01.2.15~beta5-1 PNG library - runtime ii libstdc++64.1.1-21 The GNU Standard C++ Library v3 ii libx11-6 2:1.0.3-4 X11 client-side library ii libxft2 2.1.8.2-8 FreeType-based font drawing librar ii libxinerama1 1:1.0.1-4.1X11 Xinerama extension library ii libxp61:1.0.0.xsf1-1 X Printing Extension (Xprint) clie ii libxrender1 1:0.9.1-3 X Rendering Extension client libra ii libxt61:1.0.2-2 X11 toolkit intrinsics library ii psmisc22.3-1 Utilities that use the proc filesy ii zlib1g1:1.2.3-13 compression library - runtime iceweasel recommends no packages. -- no debconf information -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Bug#408460: iceweasel: pages with non-moving backgrounds scroll very slowly
On Thu, Jan 25, 2007 at 06:35:22PM -0500, Michael Gilbert [EMAIL PROTECTED] wrote: Package: iceweasel Version: 2.0.0.1+dfsg-2 Severity: normal using the mousewheel to scroll on pages that have non-moving backgrounds (for example http://www.jonobacon.org) is excessively slowly with iceweasel. note that upstream firefox (2.0.0.1) does not suffer from this problem (as can be tested by viewing the example page under that browser). other browsers affected by this bug are iceape (1.0.7-2) and galeon (2.0.2-4). unaffected are konqueror (3.5.5a) and epiphany (2.14.3-4). A workaround for this would be to set MOZ_DISABLE_PANGO. See the /usr/doc/share/iceweasel/README.Debian file. Mike -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
