pcdash@tatapowersed.comNew Member Posts:
30 Jan 2012 09:31 PM |
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Hi,
I am using OMAP35x SOM LV. I am trying to use a custom LCD panel with 480x640 resolution.
I am able to display a bitmap during LOLO. But while booting into Linux, only 480x270 resolution is coming.
I have tried changing different display modes with 640x480 and omapfb.rotation etc, but unable to display.
Any sugestion would help.
Thanks
Prakash
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richard.laborde@logicpd.comBasic Member Posts:247
31 Jan 2012 08:19 AM |
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Prakash,
Did you erase the Uboot display variables before you tried to boot Linux?
If you ever booted with the kit display, the variables for that display are stored in flash. You will need to erase them to use a different display.
Thanks
Richard
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pcdash@tatapowersed.comNew Member Posts:
31 Jan 2012 09:33 PM |
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Hi Richard,
yes i have changed display variable in uboot.
like:
setenv display 5 ( for 640x480)
and saveenv
and i think there is no other settings.
but after booting into linux blank screen
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richard.laborde@logicpd.comBasic Member Posts:247
01 Feb 2012 08:38 AM |
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Please see the note in Section 2.13.6 #3 of the Linux BSP User Guide for erasing previous U-boot settings.
Erase U-Boot's environment:
losh> erase /dev/nand0 B2046 B2
Thanks
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pcdash@tatapowersed.comNew Member Posts:
15 Feb 2012 11:03 PM |
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Hi,
thanks. i solved this problem by changing custom lcd timings.
Thanks
prakash
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