Re: Can HP15 boot/BIOS screens be seen via external HDMI monitor on HP15 laptop
G'day again folks
My situation has been resolved by being able to get a new screen for half price, because it had one locked pixel, so I can see everything now. It is now clear that any attempt to have reset the BIOS blindly would have been too complicated, and potentially been disastrous, so I am glad I held off. I have changed back to UEFI booting, but have not disconnected the new screen to test if that actually solved the display problem above; chose to leave well enough alone.
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frankus333
Member
Last Activity: 08-14-2017, 07:34 AM
Joined: 06-26-2017
Location: Brisbane Queensland
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Re: Can HP15 boot/BIOS screens be seen via external HDMI monitor on HP15 laptop
Thanks Anselme
As noted in post #3 in this thread, I have turned off Secure Boot. The problem is not being able to see the BIOS or boot screens on the external HDMI monitor now, so I don't have the luxury of playing around with the BIOS. I am trying to determine if it is safe and feasible for me to blindly switch back to UEFI booting, from Legacy booting, with no visible screens. I am not even certain that this is what caused them to disappear, but seems the most likely explanation, as explained...Last edited by frankus333; 07-09-2017, 09:05 PM.Leave a comment:
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Re: Can HP15 boot/BIOS screens be seen via external HDMI monitor on HP15 laptop
Thanks jiroy
Are you able to tell me the key sequence to reset only the boot from Legacy back to UEFI please?
CheersLeave a comment:
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Re: Can HP15 boot/BIOS screens be seen via external HDMI monitor on HP15 laptop
Thanks jiroy
Wow! Sounds like there are many potential unforeseen outcomes in these exercises!
Does that mean the laptop was originally in Legacy mode, and had to be put back that way, not left in UEFI mode, before it would boot again?Leave a comment:
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Re: Can HP15 boot/BIOS screens be seen via external HDMI monitor on HP15 laptop
Great, thanks jiroy
I wonder if you still have that machine, and if you could tell me the sequence just to switch from legacy boot back to UEFI boot?
I am worried that if I reset back to all defaults, there may be other steps related to secure boot changes that I made, that are too involved to do blind.
Many thanks for your interest and time.Leave a comment:
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Re: Schematic, service manual for Samsung UA32EH4000MXXY Version TS01?
Many thanks thoma; much appreciated.
Not exactly my model, but more than enough info to get me well on my way.
CheersLeave a comment:
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Re: Schematic, service manual for Samsung UA32EH4000MXXY Version TS01?
Thanks diif and tw2005
I don't have a veteran's experience unfortunately, but can read a schematic and interpret a service manual. Just wanted to have the info before I started poking around, to be more certain of what I was looking at.
Are manuals/schematics hard to come by? I didn't have much luck searching the net.
CheersLeave a comment:
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Schematic, service manual for Samsung UA32EH4000MXXY Version TS01?
G'day folks
I have inherited this LCD TV which looks completely dead; not even a power light in bottom right corner.
Just wondered if someone can point me in the direction of a schematic or service manual so I can get some idea where to start.
Cheers -
Re: Can HP15 boot/BIOS screens be seen via external HDMI monitor on HP15 laptop
Thanks jiroy
I don't follow your explanation involving safe mode as the reason I was able to see the boot screens. My understanding is that safe mode is a function of the OS, specifically Windows. (Linux has a "recovery " mode which also uses low resolution, but I can't access that option without seeing the GRUB boot menu.) These modes have nothing to do with the initial boot processes or screens as far as I am aware.
I have been able to boot into safe mode in the...Last edited by frankus333; 07-03-2017, 05:45 AM.Leave a comment:
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Re: Can HP15 boot/BIOS screens be seen via external HDMI monitor on HP15 laptop
Thanks jiroy
Not sure I understand your last post; perhaps I have confused things with too much information not immediately relevant to the issue of seeing boot screens.
I mentioned safe mode in passing, as it was one of the options I temporarily gained when the initial screens became visible for a while. I use safe mode to run virus scans to provide a simpler environment for the scanner to check everything completely, and it was not accessible to me in Win 8.1 until the...Leave a comment:
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Re: Can HP15 boot/BIOS screens be seen via external HDMI monitor on HP15 laptop
Thanks jiroy
I was actually relatively easily able to disconnect and remove the screen from the connector in the lid; I did not go all the way to the motherboard and remove the other end of the cable. This did not seem to have achieved anything on the initial bootup, but after a reboot, it worked; I could see the boot menu, and enter BIOS, but did not see any sign of the Linux GRUB booting menu.
I was able to turn off Secure Boot (but did not purge the Secure Boot keys) and...Leave a comment:
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Can HP15 boot/BIOS screens be seen via external HDMI monitor on HP15 laptop
G'day folks
I have a HP-15 notebook (maybe -15-r110tu ?),
model K2N67PA#ABG,
BIOS Insyde F.23-09/12/2014 (096c110000405F00050660180), UEFI secure boot,
SMBIOS ver 2.7,
Embedded Controller version 57.35,
Hardware Abstraction Layer version = "6.3.9600.17196.
It has a broken screen, and I use it via the only external monitor port it has, a HDMI port. I have an in-line HDMI to VGA adapter which drives my VGA monitor.
I have seen a number of posts on another forum reporting that it should be possible to see the... -
Re: New Members - please post your introductions here
G'day folks
I am a retired psychologist who likes to dabble in fixing and tweaking older computers and other electronic and electrical gadgets as a hobby. My first job was a radio/electronics tech in civil aviation from early 70s, an interest I gained from my father, who was a radio operator in the air force during WW2. Computers were just coming into civil aviation in the early 80s when I left to become a psychologist, so I only had experience with early logic circuits under my belt by then (AND, OR, NOT gates, operational...Leave a comment:
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