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Xorg videodriver problem with fonts

Evgeniy Kosulnikov
Intellectual 290 points

Hello,

I have a strange problem with xorg video driver:

When in my xorg.conf option "NoAccel" is set to "true",  then everything is displayed correctly, but it's slow.

When I comment this line and restart X, everything is faster, but, for example, openbox window titles are not displayed correctly. This issue only affects fonts.

Inside window everything looks good. See attached screenshot:

There is window of xterm and fbpanel.

I use custom board, based on c6a186x; file system, u-boot and kernel from EZSDK 5_05_02_00. Driver in xorg.conf is set to "pvr".

Can someone tell the reasons of this behavior or how to solve the problem?

Thanks.

  • 0
    TI__Guru**** 170625 points

    Hi Evgeniy,

    The "NoAccel" option is used to disable 2D acceleration engine. I made a search in our Graphics related resources, and I found some tips regarding improving the performance, but there is no "NoAccel = true" recommendation for improving the performance. Check the links below:

    http://processors.wiki.ti.com/index.php/SGXDbg#GLES2_.2B_VG_or_GLES2_.2B_PVR2D_for_2D_configuration_performance_is_poor

    http://processors.wiki.ti.com/index.php/SGXDbg#SGX_Performance_Analysis_Tools

    http://processors.wiki.ti.com/index.php/SGXDbg#Observing_lower_performance_and_sometimes_SGX_Hardware_recovery_error_messages_with_Xorg_driver

    http://processors.wiki.ti.com/index.php/SGXDbg#Observing_low_performance_with_Qt.2BX11_apps_for_ARGB

    Check also the below wiki, might be in help:

    http://processors.wiki.ti.com/index.php/Graphics_SDK_Quick_installation_and_user_guide

    Regards,

    Pavel

  • 0 in reply to Pavel Botev
    Intellectual 290 points

    Thanks for your reply, but I think you do not understand what the problem is.

    The "NoAccel" option was set to "true" during some of the tests due to problems with memory settings.

    But now I need to use graphic acceleration and have a problem, that I described above. Maybe I just need something to install..

    By the way, Qt demos does not work correctly with X11 on my system.


    Anyway, thank you for provided links.

  • 0 in reply to Evgeniy Kosulnikov
    TI__Guru**** 170625 points

    Evgeniy,

    Sorry for the misunderstanding. Check the links that I already provided, they should help. Here below are also some threads on similar subject that might be in help:

    http://e2e.ti.com/support/dsp/davinci_digital_media_processors/f/717/t/137427.aspx

    http://e2e.ti.com/support/dsp/davinci_digital_media_processors/f/716/t/158461.aspx

    http://e2e.ti.com/support/dsp/davinci_digital_media_processors/f/717/t/237673.aspx

    http://e2e.ti.com/support/dsp/davinci_digital_media_processors/f/100/t/167122.aspx

    Regards,

    Pavel

  • 0 in reply to Pavel Botev
    Intellectual 290 points

    Pavel,

    I already have read and successfully completed Xorg build and execution. I also have read SGXDbg wiki page.

    The main problem is the use of acceleration.

    I use Graphics SDK from ezsdk, is it normal or should I upgrade to a newer version?

  • 0 in reply to Evgeniy Kosulnikov
    TI__Guru**** 170625 points

    Evgeniy,

    This is the DM816x hardware forum, I tried to help, but I am out of ideas. I would recommend you to post your questions in our Software forum:

    http://e2e.ti.com/support/embedded/linux/default.aspx

    BR

    Pavel

  • 0 in reply to Pavel Botev
    Intellectual 290 points

    Pavel,

    Thank you for help. I'll try to ask there.