[Buildroot] [PATCH v4 00/14] Add Xorg support for iMX6
jezz at sysmic.org
Mon Dec 8 10:32:59 UTC 2014
On Friday 05 December 2014 23:44:31 Thomas Petazzoni wrote:
> Dear Jérôme Pouiller,
> On Thu, 04 Dec 2014 22:19:13 +0100, Jérôme Pouiller wrote:
> > It looks like you enabled EGLFS in Qt5. EGLFS need framebuffer version of gpu-
> > viv-bin-mx6q. If you want to use X11, you have to enable xcb in qt5 (as in
> > example in commit log of "07/14 xdriver_xf86-video-imx-viv").
> > I do not see any simple generic solution to prevent user to choose EGLFS in Qt
> > if X11 backend is selected in gpu-viv-bin-mx6q :-(
> Well, we could always imagine something like:
> config BR2_PACKAGE_QT5BASE_XCB
> bool "X.org XCB support"
> depends on BR2_PACKAGE_XORG7
> select BR2_PACKAGE_XLIB_LIBX11
> select BR2_PACKAGE_LIBXCB
> select BR2_PACKAGE_XCB_UTIL_IMAGE
> select BR2_PACKAGE_XCB_UTIL_KEYSYMS
> select BR2_PACKAGE_XCB_UTIL_WM
> select BR2_PACKAGE_LIBXKBCOMMON
> + depends on BR2_PACKAGE_GPU_VIV_BIN_MX6Q_OUTPUT_X11 if BR2_PACKAGE_GPU_VIV_BIN_MX6Q
> comment "X.org XCB backend available if X.org is enabled"
> depends on !BR2_PACKAGE_XORG7
> +comment "X11 backend of gpu-viv-bin-mx6q needed to enable XCB"
> + depends on BR2_PACKAGE_GPU_VIV_BIN_MX6Q && !BR2_PACKAGE_GPU_VIV_BIN_MX6Q_OUTPUT_X11
> config BR2_PACKAGE_QT5BASE_EGLFS
> bool "eglfs support"
> select BR2_PACKAGE_QT5BASE_OPENGL
> depends on BR2_PACKAGE_HAS_LIBEGL
> depends on BR2_PACKAGE_QT5_GL_AVAILABLE
> + depends on BR2_PACKAGE_GPU_VIV_BIN_MX6Q_OUTPUT_FB if BR2_PACKAGE_GPU_VIV_BIN_MX6Q
> +comment "FB backend of gpu-viv-bin-mx6q needed to enable EGLFS"
> + depends on BR2_PACKAGE_GPU_VIV_BIN_MX6Q && !BR2_PACKAGE_GPU_VIV_BIN_MX6Q_OUTPUT_FB
> comment "eglfs backend available if OpenGL and EGL are enabled"
> depends on !BR2_PACKAGE_HAS_LIBEGL || !BR2_PACKAGE_QT5_GL_AVAILABLE
> For sure, it's not very generic, but at least it lets the user know
> about this dependency, which is not very obvious.
> But I am wondering, for the X11 output to work, don't you also need the
> BR2_PACKAGE_XDRIVER_XF86_VIDEO_IMX_VIV option ?
Hmmm... I believe Vivante drivers are not the only drivers with this
problem. I am not sure mesa3d works with eglfs or RPi works with
Maybe we should find a more generic way to solve this issue.
Jérôme Pouiller, Sysmic
Embedded Linux specialist
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