Bug 749647
| Summary: | [GD5446_KVM] KDE fails to start in side a VM using the cirrus driver and 'raster' Qt renderer | ||||||||||||||||||||||||||||
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| Product: | [Fedora] Fedora | Reporter: | Martin Kho <rh-bugzilla> | ||||||||||||||||||||||||||
| Component: | qt | Assignee: | Than Ngo <than> | ||||||||||||||||||||||||||
| Status: | CLOSED ERRATA | QA Contact: | Fedora Extras Quality Assurance <extras-qa> | ||||||||||||||||||||||||||
| Severity: | high | Docs Contact: | |||||||||||||||||||||||||||
| Priority: | unspecified | ||||||||||||||||||||||||||||
| Version: | 16 | CC: | airlied, ajax, awilliam, dennis, itamar, jarsmith, jreznik, jsmith.fedora, kevin, kparal, ltinkl, mike.hinz, oliver.henshaw, rbergero, rdieter, rnovacek, robatino, smparrish, tflink, than, xgl-maint | ||||||||||||||||||||||||||
| Target Milestone: | --- | Keywords: | Patch, Triaged, Upstream | ||||||||||||||||||||||||||
| Target Release: | --- | ||||||||||||||||||||||||||||
| Hardware: | All | ||||||||||||||||||||||||||||
| OS: | Linux | ||||||||||||||||||||||||||||
| Whiteboard: | [cat:others] AcceptedBlocker | ||||||||||||||||||||||||||||
| Fixed In Version: | qt-4.8.0-0.23.rc1.fc16 | Doc Type: | Bug Fix | ||||||||||||||||||||||||||
| Doc Text: | Story Points: | --- | |||||||||||||||||||||||||||
| Clone Of: | Environment: | ||||||||||||||||||||||||||||
| Last Closed: | 2011-10-29 06:30:30 UTC | Type: | --- | ||||||||||||||||||||||||||
| Regression: | --- | Mount Type: | --- | ||||||||||||||||||||||||||
| Documentation: | --- | CRM: | |||||||||||||||||||||||||||
| Verified Versions: | Category: | --- | |||||||||||||||||||||||||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||||||||||||||||||||||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||||||||||||||||||||||||
| Embargoed: | |||||||||||||||||||||||||||||
| Bug Depends On: | |||||||||||||||||||||||||||||
| Bug Blocks: | 713568 | ||||||||||||||||||||||||||||
| Attachments: |
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Description
Martin Kho
2011-10-27 19:12:58 UTC
Created attachment 530548 [details]
kdm.log
Created attachment 530549 [details]
var/log/messages
Created attachment 530550 [details]
Xorg.0.log
Created attachment 530551 [details]
dmesg
er, kdm.log shows a backtrace in qxl, not cirrus. are you sure this is using cirrus? are you sure you have the right logs? -- Fedora Bugzappers volunteer triage team https://fedoraproject.org/wiki/BugZappers As with the qxl bug, this only happens with the (new) default of "QT_GRAPHICSSYSTEM=raster" - see bug #731245 comment #32. Hi, Arch, I'll create a new kdm.log from TC3 final. Sorry :-( Martin Kho updating the summary, nominating as a blocker, because F15 defaults to cirrus/vnc not qxl/spice, unfortunately :( as we 'support' both F-N and F-N-1 as virt hosts in the criteria, we need both cirrus and qxl drivers to work with raster, so KDE will run on both F15 and F16 KVM host default configs. -- Fedora Bugzappers volunteer triage team https://fedoraproject.org/wiki/BugZappers to reproduce this, btw, just create a VM in Fedora 15 virt-manager with all default settings and try to boot an F16 live KDE image. that should be all that's needed. To expand on Oliver's comment #6: Qt's default rendering engine changed from 'native' (which uses Xrender) to 'raster' (software rasterization) in Qt 4.8, and that's what 'broke', here (why this works in F15 and not F16). Switching back to 'native' by default would be sub-optimal for reasons discussed in https://bugzilla.redhat.com/show_bug.cgi?id=731245#c85 , so we really want the cirrus driver to be fixed with respect to Qt's 'raster' rendering, that would be the best solution. thanks! I can reproduce this using either the 32- or 64-bit TC3 Live KDE image booted in either a 32- or 64-bit F16 KVM guest (both default installs from the respective TC3 DVDs). My host is F15 x86_64. As long as the guest video driver is set to cirrus, it happens, with the display being set to either VNC or Spice. Booting the 64-bit Live always results in a black screen, while booting the 32-bit Live usually results in a crosshatch pattern (though I did see a black screen the first time booting it). Attached below are logs associated with the 64-bit TC3 Live KDE image booted in the 64-bit F16 KVM guest, using VNC+cirrus. I got a black screen. Created attachment 530603 [details]
Xorg.0.log
Created attachment 530604 [details]
/var/log/messages
Created attachment 530605 [details]
.xsession-errors
Adding CCs for blocker votes. I'm +1 on this, given that cirrus seems to be the default for at least 32-bit VMs in both F15 and F16, and possibly 64-bit in F15. Created attachment 530639 [details]
dmesg from final TC3 guest
Created attachment 530640 [details]
kdm.log from final TC3 guest
Created attachment 530641 [details]
messages from final TC3 guest
Created attachment 530642 [details]
Xorg.0.log from final TC3 guest
Created attachment 530643 [details]
xsession-errors from final TC3 guest
Hi, abrt created a core-dump. Is this info interesting? What files? Martin Kho Reproduced. +1 blocker. +1 blocker +1 blocker Discussed at 2011-10-28 blocker review meeting. Accepted as a blocker per criterion "Following on from the previous criterion, after firstboot is completed and on subsequent boots, a system installed according to any of the above criteria (or the appropriate Beta or Final criteria, when applying this criterion to those releases) must boot to a working graphical environment without unintended user intervention. This includes correctly accessing any encrypted partitions when the correct passphrase" as applied to the KDE desktop + cirrus driver combination. We have significant progress here. We're pretty sure it's: https://bugreports.qt.nokia.com/browse/QTBUG-21754 rdieter is working on a Qt build with that patch to test. Found the aforementioned commit, http://qt.gitorious.org/qt/qt/commit/b56dbaf5b3247bd8e87e4e856ad845593755c10c Test build underway: https://koji.fedoraproject.org/koji/taskinfo?taskID=3469982 snarf over to qt qt-4.8.0-0.23.rc1.fc16 has been submitted as an update for Fedora 16. https://admin.fedoraproject.org/updates/qt-4.8.0-0.23.rc1.fc16 I tested the fix, it looks good. I'm uploading a new live image with the fix included. If you want to test the fix for this, grab http://adamwill.fedorapeople.org/adamwkde-20111028-x86_64.iso (sha256sum 97a4d9429ec4e06cbb9d3ebeb010fd044ae66d49abeb58915714bb8f4cb49594 ). It has the fix for this and the fix for the qxl bug, so both qxl and cirrus VMs should work with it. Works for me. qt-4.8.0-0.23.rc1.fc16 has been pushed to the Fedora 16 stable repository. If problems still persist, please make note of it in this bug report. Removing external tracker bug with the id '21754' as it is not valid for this tracker |