[kde-freebsd] Display Problems in 4.8.3 on FreeBSD 8.3 stable

[Luca Pizzamiglio]

Hi David.

I' had a similar issue with similar messages..
Try to set a higher value to kern.ipc.shmall

I had 8192 that was really inadequate and I set 16384.

Regards,
Luca

On Tue, May 29, 2012 at 6:42 PM, David Booth <davidb at boothscientific.com> wrote:
> Hi:
>
> I updated to 4.8.3 this weekend and now have display rendering issues in
> windows for KDE applications.
>
> The first issue seems to be a vertical offset issue. All of the KDE windows
> seem to have their content offset to the top. For example, if I open a web
> page in Konqueror, the top two inches of the page disappear under the title
> bar and there is a corresponding gray rectangle at the bottom of the page
> with no content. I see the same thing in other KDE windows. For example, if
> I open a Konsole window, the window contents are shifted upwards so the top
> two lines of text are not visible and there is a gray rectangle at the
> bottom of the window. Also, if I use the mouse to select a line of text, the
> highlighted line of text is two lines above where the mouse cursor is
> located. Similar behavior is seen with buttons. Generally, in order to
> select a button, I have to place the mouse cursor a half-inch or so below
> it.
>
> The second issue seems to be redraw issue. If I minimize a Konqueror window
> and then expand it again, it come back with just an empty gray background
> and no content. If I decrease the size of a Konsole window, the old
> full-size window remains visible in the background.
>
> Another issue is that some KDE windows come up blank when opened (such as
> the Application Launcher). If I move the mouse around in the blank window,
> items will appear and disappear as the mouse moves over them and off of
> them. With this behavior, I cannot change any of the system settings as the
> window is unusable.
>
> I have tried various values for kern.ipc.shmni and kern.ipc.shmseg up to
> 4096 and it seems to make no difference.
>
> Non-KDE applications such as Firefox, Opera, Gimp, Thunderbird, GoogleEarth
> etc. do not have these problems. They work fine.
>
> The video card is an Nvidia FX 2700M (G94GL). I have tried with the native
> Nvidia driver as well with the NV driver and VESA. The behavior is the same
> for all
>
> This all seems very similar to the behavior that KDEgames had in 4.7.4, but
> the rest of the KDE windows worked well there.
>
> I see occasional errors on the console from which KDE was started such as:
>
> QNativeImage: Unable to attach to shared memory segment
>
> and
>
> kpat(2724)/KSharedDataChache: Unabel to find an appropriate lock to guard
> the shared cache. This *should* be essentially impossible. :(
>
> kpat(2724)/KSharedDataCache: Unable to perform initial setup, this system
> probably does not really support process-shared pthreads or semaphores, even
> though it claims otherwise.
>
> kpat(2724)/KSharedDataChache: Unable to unmap shared memory segment
> 0x80e200000
>
> Does anybody have any suggestions to try to fix this? Do I have a
> configuration issue somewhere?
>
> Environment is 8.3 stable AMD64 updated as of 5/26/2012. Ports all up to
> date as of 5/26/12. X.org X Server 1.10.6
>
> Hardware: Intel T9600 processor with 4GB ram, Nvidia FX 2700M (G94GL) video
> card.
>
> This hardware/Xorg configuration worked fine with 4.7.4 except for KDEgames
> as mentioned above.
>
> Thanks for your help.
>
> David B.
>
>
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