Yeah. I just wondered if anyone knew what the XCB bug might be or whether the XCB devs were working on it. :-)
On Fri, Nov 14, 2008 at 6:17 PM, Jordan Erickson <[EMAIL PROTECTED]> wrote: > "The main difference between these versions appears to be that the Hardy > version links > > to /usr/lib/libxcb-xlib.so.0 and /usr/lib/libxcb.so.1, and the older version > does not." > > > > > I'm guessing it has to do with that. I *just* did the Gutsy file copy today > at one school, and it seemed to fix the problem all together with no ill > effects (knocks on wood). > > > Cheers, > Jordan/Lns > > > > Todd O'Bryan wrote: >> >> Does anyone have any idea what the bug might be and if it's still >> present in intrepid? I'll try the fix on Monday and see what >> happens... >> >> On Fri, Nov 14, 2008 at 10:05 AM, Kai Wollweber <[EMAIL PROTECTED]> wrote: >> >>> >>> Am Freitag, den 14.11.2008, 09:44 -0500 schrieb Todd O'Bryan: >>> >>> >>>> >>>> I'm trying to run BlueJ (http://www.bluej.org), a fairly modest Java >>>> IDE for students. It runs fine on the servers, on my Ubuntu laptop and >>>> desktop, but on the clients it's as slow as molasses. >>>> >>> >>> Rhere is already a bug report at launchpad about this issue: >>> >>> https://bugs.launchpad.net/ubuntu/+source/ia32-libs/+bug/277069 >>> >>> >>> I asked Juha in ltsp-discuss mailing-list and his answer gives us a >>> workaround: >>> >>> >>>> >>>> ----- "Kai Wollweber" <[EMAIL PROTECTED]> kirjoitti: >>>> >>>>> >>>>> yesterday I recognized the problem of slow java applications on our >>>>> >>>> >>>> ltsp >>>> >>>>> >>>>> clients. In our case the java program "geonext" is unuseable but >>>>> importand for our school. I found your solution posted some weeks >>>>> ago: >>>>> >>>>>> >>>>>> The sluggishness of some Java applications can be solved in Ubuntu >>>>>> Hardy by replacing the /usr/lib32/libX11.so.6.2.0 file in Hardy >>>>>> >>>> >>>> with >>>> >>>>>> >>>>>> the version in Gutsy (presuming Firefox and Java are 32-bit >>>>>> >>>> >>>> versions, so >>>> >>>>>> >>>>>> they use 32-bit libraries). The main difference between these >>>>>> >>>> >>>> versions >>>> >>>>>> >>>>>> appears to be that the Hardy version links >>>>>> >>>> >>>> to /usr/lib/libxcb-xlib.so.0 >>>> >>>>>> >>>>>> and /usr/lib/libxcb.so.1, and the older version does not. Similar >>>>>> >>>> >>>> change >>>> >>>>>> >>>>>> may work as well with other LTSP distributions that are affected by >>>>>> >>>> >>>> this. >>>> >>>> >>>>> >>>>> 1.) How can a single file be replaced between different Ubuntu >>>>> >>>> >>>> versions? >>>> >>>> Simply replacing the file (with cp) should be enough, but in >>>> case updates should happen to ia32-libs package that contains the >>>> /usr/lib32/libX11.so.6.2.0 file, those updates will overwrite the >>>> changed file. dpkg-divert can be used to solve this problem, it can >>>> be used to divert file updates to another place (in this case, because >>>> the file is a shared library, it should not be in the same directory, >>>> otherwise ldconfig will link to the wrong file). >>>> >>>> You might want to test by simply installing the gutsy version of >>>> ia32-libs package, it should work, but I don't recommend that as a >>>> permanent solution (it will change many other libraries as well). >>>> >>>> >>>>> >>>>> 2.) Where can I get the file from Gutsy? >>>>> >>>> >>>> http://packages.ubuntu.com/gutsy-updates/amd64/ia32-libs/download >>>> >>>> You can unpack deb-archives with (IIRC): >>>> >>>> (mkdir tmp && cd tmp && ar x ../ia32-libs_2.1ubuntu4_amd64.deb && \ >>>> tar -zxf data.tar.gz) >>>> >>>> You'll find the file there. >>>> >>>> >>>>> >>>>> 3.) Are there side effects that probably can affect the system? >>>>> >>>> >>>> Perhaps, but I'm not aware of any. >>>> >>>> >>>>> >>>>> 4.) Am I right that the file needs to be replaced in the ltsp >>>>> >>>> >>>> chroot? >>>> >>>> No, X-clients use this library, so it needs to be replaced in the ltsp >>>> server environment, NOT in the image that is served to terminals. >>>> >>>> I hope this helps. >>>> >>>> Juha >>>> >>> >>> -- >>> edubuntu-users mailing list >>> [email protected] >>> Modify settings or unsubscribe at: >>> https://lists.ubuntu.com/mailman/listinfo/edubuntu-users >>> >>> >> >> > > > -- > Jordan Erickson > Owner, Logical Networking Solutions > http://www.logicalnetworking.net > 707-636-5678 > > Latest LNS Blogs - http://blogs.logicalnetworking.net > > Intel and HP team up to roll out Green PCs for the enterprise > Mozilla Thunderbird Add-on "Signature Switch" > Will "Windows 7" be another Mojave Experiment? > > -- edubuntu-users mailing list [email protected] Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/edubuntu-users
