The error from Qt get's generated once xcb detects the error at the
connector, which Qt doesn't handle by default:
(gdb) p xcb_xfixes_id
$37 = {name = 0xb2433b28 "XFIXES", global_id = 2}
(gdb) n
Breakpoint 3, xcb_get_extension_data (c=0x1fc9b0, ext=0xb243c02c) at
../../src/xcb_ext.c:85
85 ../../src/xcb_ext.c: No such file or directory.
(gdb) n
87 in ../../src/xcb_ext.c
(gdb) p c->has_error
$39 = 1
....
Qt:
void QXcbConnection::initializeXFixes()
{
xcb_generic_error_t *error = 0;
const xcb_query_extension_reply_t *reply =
xcb_get_extension_data(m_connection, &xcb_xfixes_id);
xfixes_first_event = reply->first_event;
...
As this is causing the X11 server to blow as well, I believe this is
probably related with an issue on the xrandr side, as it's the first
extension Qt loads before moving on with the application.
--
You received this bug notification because you are a member of TI OMAP
Developers, which is subscribed to ubuntu-omap4-extras-graphics.
https://bugs.launchpad.net/bugs/1015292
Title:
Snowshoe fails with QT5 with a segmentation fault while starting the
application
Status in Ubuntu OMAP4 graphics addons:
New
Status in “pvr-omap4” package in Ubuntu:
Confirmed
Bug description:
While testing Qt 5 support on Ubuntu, and validating the support for
OpenGL ES2.0 with Pandaboard, I couldn't start Snowshoe (Qt 5 - webkit
based browser) as it gives a segmentation fault and also breaks the
X11 server (with the pvr driver).
After a quick check with Snowball (Mali 400), it worked properly and
as expected, so this could probably be related with the current SGX
driver available for Pandaboard.
How to reproduce the issue:
1) Enable https://launchpad.net/~canonical-qt5-edgers/+archive/qt5-daily
2) Install 'snowshoe-mobile' package
3) Run snowshoe: $ PATH=/opt/qt5/bin:$PATH; snowshoe
This is with Ubuntu 12.04 with pvr-omap4 1.7.10.0.1.21-0ubuntu1 (from
archive) and also 1.7.15.0.1.57-1 from TI's PPA.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu-omap4-extras-graphics/+bug/1015292/+subscriptions
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