[Bug 682338] Re: GTK programs in Ubuntu 10.10 are sluggish over NX
The Precise Pangolin has reached end of life, so this bug will not be fixed for that release ** Changed in: cairo (Ubuntu Precise) Status: Triaged => Won't Fix -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/682338 Title: GTK programs in Ubuntu 10.10 are sluggish over NX To manage notifications about this bug go to: https://bugs.launchpad.net/libcairo/+bug/682338/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 682338] Re: GTK programs in Ubuntu 10.10 are sluggish over NX
** Changed in: libcairo Status: Confirmed => Unknown -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/682338 Title: GTK programs in Ubuntu 10.10 are sluggish over NX To manage notifications about this bug go to: https://bugs.launchpad.net/libcairo/+bug/682338/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 682338] Re: GTK programs in Ubuntu 10.10 are sluggish over NX
On Ubuntu 12.10 which has libcairo2 1.12, the bug come back ! :( It's OK when downgrading the package to the 1.10 version of Ubuntu Precise... -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/682338 Title: GTK programs in Ubuntu 10.10 are sluggish over NX To manage notifications about this bug go to: https://bugs.launchpad.net/libcairo/+bug/682338/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 682338] Re: GTK programs in Ubuntu 10.10 are sluggish over NX
Looks like the NX folks have released an update which promises to fix this issue: http://www.nomachine.com/news-read.php?idnews=371 Did someone try it already? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/682338 Title: GTK programs in Ubuntu 10.10 are sluggish over NX To manage notifications about this bug go to: https://bugs.launchpad.net/libcairo/+bug/682338/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 682338] Re: GTK programs in Ubuntu 10.10 are sluggish over NX
It seems to be OK for me, I'm running this new release with native cairo packages :) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/682338 Title: GTK programs in Ubuntu 10.10 are sluggish over NX To manage notifications about this bug go to: https://bugs.launchpad.net/libcairo/+bug/682338/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 682338] Re: GTK programs in Ubuntu 10.10 are sluggish over NX
Unfortunately it's a little more complicated than just which X server Ubuntu 12.04 contains. If you were to, say, X-forward an application from an Ubuntu 12.04 machine to a machine with an old server, you could crash that X server. Ideally, we would patch cairo to specifically detect the NX agent's X server, but I haven't been able to come up with a way to do that. After consulting with Sebastien, I've come up with the attached patch, which still disables the workaround for buggy repeat, but only for the specific X version that that the NX agent advertises. While our best judgement is that the NX agent is likely to be significantly more common than X-forwarding to an X server from 7 years ago, I'd still like to limit the scope of the change. I've uploaded a test build with this patch to my PPA (http://launchpad.net/~broder/+archive/ubuntu-tests); it should build and be available shortly. I'll attempt to test it, but if people who actively use NX could test it as well, that would be appreciated. Assuming no snags, I'll plan to upload it to the archive in the next few days. (In the mean time, I'm going to go ahead and unsubscribe ubuntu- sponsors, but I'll keep an eye on the bug myself) ** Patch added: cairo_1.10.2-6.1ubuntu3.debdiff https://bugs.launchpad.net/ubuntu/+source/cairo/+bug/682338/+attachment/2737941/+files/cairo_1.10.2-6.1ubuntu3.debdiff ** Patch removed: nx_cairo_1.10.2-6ubuntu3.patch https://bugs.launchpad.net/ubuntu/+source/cairo/+bug/682338/+attachment/2656561/+files/nx_cairo_1.10.2-6ubuntu3.patch -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/682338 Title: GTK programs in Ubuntu 10.10 are sluggish over NX To manage notifications about this bug go to: https://bugs.launchpad.net/libcairo/+bug/682338/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 682338] Re: GTK programs in Ubuntu 10.10 are sluggish over NX
The attachment nx_cairo_1.10.2-6ubuntu3.patch of this bug report has been identified as being a patch. The ubuntu-reviewers team has been subscribed to the bug report so that they can review the patch. In the event that this is in fact not a patch you can resolve this situation by removing the tag 'patch' from the bug report and editing the attachment so that it is not flagged as a patch. Additionally, if you are member of the ubuntu-reviewers team please also unsubscribe the team from this bug report. [This is an automated message performed by a Launchpad user owned by Brian Murray. Please contact him regarding any issues with the action taken in this bug report.] ** Tags added: patch -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/682338 Title: GTK programs in Ubuntu 10.10 are sluggish over NX To manage notifications about this bug go to: https://bugs.launchpad.net/libcairo/+bug/682338/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 682338] Re: GTK programs in Ubuntu 10.10 are sluggish over NX
** Also affects: cairo (Ubuntu Precise) Importance: Low Status: Triaged -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/682338 Title: GTK programs in Ubuntu 10.10 are sluggish over NX To manage notifications about this bug go to: https://bugs.launchpad.net/libcairo/+bug/682338/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 682338] Re: GTK programs in Ubuntu 10.10 are sluggish over NX
Launchpad has imported 9 comments from the remote bug at https://bugs.freedesktop.org/show_bug.cgi?id=32014. If you reply to an imported comment from within Launchpad, your comment will be sent to the remote bug automatically. Read more about Launchpad's inter-bugtracker facilities at https://help.launchpad.net/InterBugTracking. On 2010-12-01T12:12:12+00:00 Ryan Prichard wrote: I use NX to connect to a work computer from home, over the Internet. I recently upgraded to Ubuntu 10.10, and I noticed that GTK programs became very sluggish. I currently have 1.10.0-1ubuntu3 of libcairo2 installed. If I override this with the Ubuntu 10.04 version of libcairo2, 1.8.10-2ubuntu1, performance is restored. I used LD_LIBRARY_PATH to run GTK programs with the old libcairo2 package. I first reported this issue against Ubuntu 10.10, but since the problem is in Cairo (or NX), an Ubuntu maintainer suggested I report it here. The Ubuntu bug report is at https://bugs.launchpad.net/ubuntu/+source/cairo/+bug/682338. It has a video attached demonstrating how much faster gedit is using the old libcairo2 package. Both the home and work computer run Ubuntu 10.10. In addition to the performance drop, I see JPEG artifacts on rendered text and metacity window decorations. I'm used to seeing some artifacts because NX compresses things like icons with JPEG. NX doesn't normally compress text, window decorations, etc. The slow performance and artifacts suggests that NX is transmitting bitmap data when it should be transmitting drawing commands. The work computer has these NX packages installed: nxclient-3.4.0-7 nxnode-3.4.0-14 nxserver-3.4.0-14 The home computer only has the nxclient-3.4.0-7 package installed. The ping times from my home computer to work computer are about 35ms. I made a Cairo Git checkout and verified that when I built 1.8.10, gedit was fast, but when I built the newest version, gedit was slow. git bisect identified a single commit where the performance problem began: commit 33be73dfb76c26e3bb0ab59b2f570d00d9c7be62 Author: Chris Wilson ch...@chris-wilson.co.uk Date: Fri Sep 11 14:59:58 2009 +0100 [xlib] Fix big-line. Project lines that exceed the 16.16 limits onto the XFixedLine, as we know that top/bottom must fit within the confines of the surface and so will be less than 16 bits. Sadly this is a run-on patch that also does: 1. Make FillTiled the default for new GCs. 2. Stores extend mode as opposed to repeat, and thereby cleaning up some inconsistent code. 3. Remove the special casing for unbounded trapezoids, as it is redundant with the polygon clipping. 4. Tidy the logic for deciding when to use the core protocol (_categorize_composite_operation) When I searched the Internet for Ubuntu 10.10 slow NX, I noticed a similar-looking problem reported on a forum. - http://ubuntuforums.org/showthread.php?t=1625513 Reply at: https://bugs.launchpad.net/libcairo/+bug/682338/comments/3 On 2011-05-09T03:07:04+00:00 Levi Purvis wrote: I can confirm this bug. I have the same problem and it is resolved by downgrading cairo to 1.8.10. Reply at: https://bugs.launchpad.net/libcairo/+bug/682338/comments/7 On 2011-05-09T13:02:47+00:00 Pavel-sidlo wrote: I have the same problem. Downgraded Cairo to 1.8.10 too. Reply at: https://bugs.launchpad.net/libcairo/+bug/682338/comments/8 On 2011-06-18T19:39:42+00:00 Steven Robertson wrote: This appears to be due to having 'display-buggy_repeat' set in _cario_xlib_device_create(). NX (3.5, at least) presents itself as an X.Org server with version 6090, which trips the 'buggy_repeat' flag. 'buggy_repeat' is set on X.Org 6.9 to avoid a bug which will crash the X server. On NX 3.5, running the 'extend-reflect' test case after forcing the buggy_repeat flag to FALSE on git rev ced061124d0b402c did not crash the X server, so it is possible this bug does not need to be worked around on NX servers. (The test application crashes on svg11 and svg12 test modes, and fails on others, but it doesn't crash the X server itself. Plus, NX fails many other tests, and other tests *will* crash the server; not exactly a bastion of correctness.) Cairo will use software compositing for some operations, preventing NX from doing its X11 protocol compression magic to send text in an efficient manner. The commit indicated by Ryan Prichard causes more operations than before to use software compositing. I'm not sure if this was intentional or not. I see three reasonable solutions: * Get NoMachine to update NX's reported version number. My current employer makes extensive use of NX; I'll try to have someone talk to them about this. * Detect
[Bug 682338] Re: GTK programs in Ubuntu 10.10 are sluggish over NX
This issue still persists in Ubuntu 11.10. Please consider adding the patch suggested at the end of comment 3 on the freedesktop.org bug report to the Ubuntu patch set, as it simply comments out a check for a buggy_repeat flag against X.org 6.9. Since Ubuntu distributes a newer X.org, the buggy_repeat check is unnecessary. I verified the patch against the cairo 1.10.2-6ubuntu3 source package (had to adjust the line offsets) -- it resolves the issue with NX. https://bugs.freedesktop.org/show_bug.cgi?id=32014#c3 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/682338 Title: GTK programs in Ubuntu 10.10 are sluggish over NX To manage notifications about this bug go to: https://bugs.launchpad.net/libcairo/+bug/682338/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 682338] Re: GTK programs in Ubuntu 10.10 are sluggish over NX
Attaching above referenced patch adjusted for Ubuntu 11.10. ** Patch added: nx_cairo_1.10.2-6ubuntu3.patch https://bugs.launchpad.net/ubuntu/+source/cairo/+bug/682338/+attachment/2656561/+files/nx_cairo_1.10.2-6ubuntu3.patch -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/682338 Title: GTK programs in Ubuntu 10.10 are sluggish over NX To manage notifications about this bug go to: https://bugs.launchpad.net/libcairo/+bug/682338/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 682338] Re: GTK programs in Ubuntu 10.10 are sluggish over NX
** Changed in: libcairo Status: Unknown = Confirmed ** Changed in: libcairo Importance: Unknown = Medium -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/682338 Title: GTK programs in Ubuntu 10.10 are sluggish over NX -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 682338] Re: GTK programs in Ubuntu 10.10 are sluggish over NX
** Changed in: cairo (Ubuntu) Status: New = Triaged -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/682338 Title: GTK programs in Ubuntu 10.10 are sluggish over NX -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 682338] Re: GTK programs in Ubuntu 10.10 are sluggish over NX
Thanks Ryan for finding the guilty library! I have posted instructions for a workaround in the Ubuntu forum thread. I'm sure you already figured that out for yourself, but please let me know if there's anything I missed or can be improved ;) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/682338 Title: GTK programs in Ubuntu 10.10 are sluggish over NX -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 682338] Re: GTK programs in Ubuntu 10.10 are sluggish over NX
Here is the link to the workaround I posted: http://ubuntuforums.org/showpost.php?p=10590940postcount=5 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/682338 Title: GTK programs in Ubuntu 10.10 are sluggish over NX -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 682338] Re: GTK programs in Ubuntu 10.10 are sluggish over NX
** Also affects: libcairo via http://bugs.freedesktop.org/show_bug.cgi?id=32014 Importance: Unknown Status: Unknown -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/682338 Title: GTK programs in Ubuntu 10.10 are sluggish over NX -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 682338] Re: GTK programs in Ubuntu 10.10 are sluggish over NX
I reported a bug against Cairo, https://bugs.freedesktop.org/show_bug.cgi?id=32014. ** Bug watch added: freedesktop.org Bugzilla #32014 http://bugs.freedesktop.org/show_bug.cgi?id=32014 -- GTK programs in Ubuntu 10.10 are sluggish over NX https://bugs.launchpad.net/bugs/682338 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 682338] Re: GTK programs in Ubuntu 10.10 are sluggish over NX
Thank you for your bug report. The issue is an upstream one and it would be nice if somebody having it could send the bug the to the people writting the software ** Changed in: cairo (Ubuntu) Importance: Undecided = Low -- GTK programs in Ubuntu 10.10 are sluggish over NX https://bugs.launchpad.net/bugs/682338 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 682338] Re: GTK programs in Ubuntu 10.10 are sluggish over NX
** Attachment added: out-5.ogv https://bugs.launchpad.net/bugs/682338/+attachment/1747649/+files/out-5.ogv -- GTK programs in Ubuntu 10.10 are sluggish over NX https://bugs.launchpad.net/bugs/682338 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
