<html><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:10pt">Hi,<br> <br>
I have managed to build the kernel for my project with support for a
frame buffer driver. When the kernel is booting I see several messages
in the console indicating the driver is loading and I can briefly see the <a id="KonaLink2" class="kLink" style="text-decoration: underline !important;position:static;font-family:inherit !important;font-weight:inherit !important;font-size:inherit !important;" href="http://www.linuxforums.org/forum/#"><font style="color: blue !important; font-family:inherit !important;font-weight:inherit !important;font-size:inherit !important;position:static;" color="blue"><span class="kLink" style="color: blue !important; font-family:inherit !important;font-weight:inherit !important;font-size:inherit !important;position:static;">linux </span><span class="kLink" style="color: blue !important; font-family:inherit !important;font-weight:inherit !important;font-size:inherit !important;position:static;">penguin</span></font></a> is shown on the VDU when "mcs8142_vga_probe: <a id="KonaLink3" class="kLink" style="text-decoration: underline
!important;position:static;font-family:inherit !important;font-weight:inherit !important;font-size:inherit !important;" href="http://www.linuxforums.org/forum/#"><font style="color: blue !important; font-family:inherit !important;font-weight:inherit !important;font-size:inherit !important;position:static;" color="blue"><span class="kLink" style="color: blue !important; font-family:inherit !important;font-weight:inherit !important;font-size:inherit !important;position:static;">platform</span></font></a> register", then it disappears shortly after this message is shown, "mcs8142_vga_probe: EXIT, returning 0"<br>
I cannot work out from which point the driver is loaded and where the
parameters for a display of 1600x1050 are passed. Can someone please
enlighten me on that. If I do an ls /dev/ I cannot see a reference to
fb0, but if I compile and run the example app from here <a href="http://web.njit.edu/all_topics/Prog_Lang_Docs/html/qt/emb-framebuffer-howto.html" target="_blank">Enabling the Linux Framebuffer</a> the application says that The frame buffer <a id="KonaLink4" class="kLink" style="text-decoration: underline !important;position:static;font-family:inherit !important;font-weight:inherit !important;font-size:inherit !important;" href="http://www.linuxforums.org/forum/#"><font style="color: blue !important; font-family:inherit !important;font-weight:inherit !important;font-size:inherit !important;position:static;" color="blue"><span class="kLink" style="color: blue !important; font-family:inherit !important;font-weight:inherit !important;font-size:inherit !important;position:static;">device</span></font></a> was opened successfully. The application fails when it tries to read fixed <a id="KonaLink5" class="kLink" style="text-decoration: underline
!important;position:static;font-family:inherit !important;font-weight:inherit !important;font-size:inherit !important;" href="http://www.linuxforums.org/forum/#"><font style="color: blue !important; font-family:inherit !important;font-weight:inherit !important;font-size:inherit !important;position:static;" color="blue"><span class="kLink" style="color: blue ! important; font-family: inherit ! important; font-weight: inherit ! important; font-size: inherit ! important; position: static; border-bottom: 1px solid blue; background-color: transparent;">information</span></font></a> from the driver, so no image is displayed.<br> <br>
How do I enable the display when the kernel has finished booting? In the
make menu I have enabled the Framebuffer Console support, and Map the
console to the primary display device.<br> <br>
Kind regards<br>
Andrew
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