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my HP ProBook 5420s supports custom boot logo but I can't get it working.

It has UEFI (not BIOS), custom boot logo option is on and I have placed a 1366x768 (native.. also tried 1024x768 as guide told so) bitmap to HP_TOOLS\Hewlett-Packard\Logo\Hplogo.bmp according to HP UEFI guide I have found: http://h10032.www1.hp.com/ctg/Manual/c01564727.pdf

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UEFI is not a type of BIOS - it's an alternative/replacement for BIOS firmware. – paradroid Nov 28 '10 at 23:55
On older bios's they have to be an uncompressed bitmap image of a certain file size or less, even then some images will not load into the memory space provided for custom images, it can take some trial and error. Can you post the guide? – Moab Nov 29 '10 at 0:00
@paradroid, in reality it is a bios, just nothing like the original IBM version, it is still referred to as a bios in all documentation from Dell, HP etc...h10025.www1.hp.com/ewfrf/wc/… – Moab Nov 29 '10 at 0:07
@Moab: I would imagine they have done that to make user-support less confusing. – paradroid Nov 29 '10 at 0:56
@paradroid They are both firmware, they both run code from the MBR, they both hand off hardware to the OS, they are basically the same thing, just different terminology and some improved technology. Lets not get too picky now. – Moab Nov 29 '10 at 3:03
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The HP UEFI custom logo needs to be a 1024x768 JPG, Hplogo.jpg, not BMP as the guide suggests.

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