Hi Sadika, There was a brown paperbag issue in the 3.3.1 release of Qt Creator related to the designer. I don't know the details, but it was related to the designer. You might want to try the newest patchlevel release (3.3.2) which has that fixed. Best Regards, Tobias On Sun, Mar 8, 2015 at 3:08 PM, Sadika Sumanapala wrote:

On Mar 7, 2015 11:54 PM, "Antonio Rojas" wrote:

...

Sadika Sumanapala wrote:

...

Hi,

I have QtCreator installed on my system. When I switch to designer mode (by opening *.ui.qml file) some of the window areas goes black, application start to response slowly and the crashes.

This happens on both Nouveau & NVIDIA drives (If this matter).

Does anyone knows to solve this problem?

Could be related to https://bugs.archlinux.org/task/44083 Can you try downgrading to Qt 5.4.0?

Today I tried it, but it didn't work Any other suggestion? Does anyone suffering from the same problem?

Today I installed qtcreator 3.3.2 from qt.io but it didn't solve the problem. following output prints on terminal when ui.qml file is open, then application crashes. QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings Segmentation fault (core dumped) On Mon, Mar 9, 2015 at 7:17 PM, Sadika Sumanapala wrote:

On Mar 9, 2015 3:56 AM, "Tobias Hunger" wrote:

...

Hi Sadika,

There was a brown paperbag issue in the 3.3.1 release of Qt Creator related to the designer. I don't know the details, but it was related to the designer. You might want to try the newest patchlevel release (3.3.2) which has that fixed.

Best Regards, Tobias

Hi Tobias. I couldn't find qtcreator 3.3.2 either in official packages or in aur. I'll try it when it become available.

...

On Sun, Mar 8, 2015 at 3:08 PM, Sadika Sumanapala wrote:

...

On Mar 7, 2015 11:54 PM, "Antonio Rojas" wrote:

...

Sadika Sumanapala wrote:

...

Hi,

I have QtCreator installed on my system. When I switch to designer

mode

...

...

(by opening *.ui.qml file) some of the window areas goes black, application start to response slowly and the crashes.

This happens on both Nouveau & NVIDIA drives (If this matter).

Does anyone knows to solve this problem?

Could be related to https://bugs.archlinux.org/task/44083 Can you try downgrading to Qt 5.4.0?

Today I tried it, but it didn't work Any other suggestion? Does anyone suffering from the same problem?

-- *Sadika Sumanapala* *Mobile:* +94 77 59 29 123 *E-Mail:* sadikahs@gmail.com

On Tue, Mar 10, 2015 at 5:02 AM, Sadika Sumanapala wrote:

Today I installed qtcreator 3.3.2 from qt.io but it didn't solve the problem. following output prints on terminal when ui.qml file is open, then application crashes.

Just to note, I use qtcreator with the embedded qt designer daily and do not have this issue, but my laptop uses bumblebee so its running on the intel card. Just tried openning it with primusrun but couldn't see a difference. Just as a point of reference, since you did ask a bit earlier whether anyone else was having the problem.

I couldn't create an account on bugreports.qt.io to report this problem. On Tue, Mar 10, 2015 at 9:58 PM, Tobias Hunger wrote:

Too bad... but then Arch is not a officially supported distribution. This should still work though:-/

Could you please file a bug report at bugreports.qt.io? We are currently all in bug-fixing mode, so there is a even better chance as usual to get this fixed ASAP:-)

...

Today I installed qtcreator 3.3.2 from qt.io but it didn't solve the problem. following output prints on terminal when ui.qml file is open,

On Tue, Mar 10, 2015 at 5:02 AM, Sadika Sumanapala wrote: then

...

application crashes.

QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings QQuickWidget cannot be used as a native child widget. Consider setting Qt::AA_DontCreateNativeWidgetSiblings Segmentation fault (core dumped)

On Mon, Mar 9, 2015 at 7:17 PM, Sadika Sumanapala wrote:

...

On Mar 9, 2015 3:56 AM, "Tobias Hunger"

wrote:

...

...

Hi Sadika,

There was a brown paperbag issue in the 3.3.1 release of Qt Creator related to the designer. I don't know the details, but it was related to the designer. You might want to try the newest patchlevel release (3.3.2) which has that fixed.

Best Regards, Tobias

Hi Tobias. I couldn't find qtcreator 3.3.2 either in official packages or in aur. I'll try it when it become available.

...

On Sun, Mar 8, 2015 at 3:08 PM, Sadika Sumanapala

...

wrote:

...

...

On Mar 7, 2015 11:54 PM, "Antonio Rojas" wrote:

...

Sadika Sumanapala wrote:

> Hi, > > I have QtCreator installed on my system. When I switch to

designer mode

...

> (by > opening *.ui.qml file) some of the window areas goes black, application > start to response slowly and the crashes. > > This happens on both Nouveau & NVIDIA drives (If this matter). > > Does anyone knows to solve this problem?

Could be related to https://bugs.archlinux.org/task/44083 Can you try downgrading to Qt 5.4.0?

Today I tried it, but it didn't work Any other suggestion? Does anyone suffering from the same problem?

-- *Sadika Sumanapala*

*Mobile:* +94 77 59 29 123 *E-Mail:* sadikahs@gmail.com

-- *Sadika Sumanapala* *Mobile:* +94 77 59 29 123 *E-Mail:* sadikahs@gmail.com