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Author Topic: External monitor with TCL on Asus netbook?  (Read 2880 times)

Offline Mike7

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External monitor with TCL on Asus netbook?
« on: November 05, 2014, 10:46:37 AM »
Hi, folks.

I'm trying to use a small 15" external CRT monitor on my Asus 1000HA netbook with CorePlus 5.1 installed. I can't get the monitor to work. It comes on but there's no signal to it. I know the monitor is okay because it works fine with WindowsXP booted. Can someone tell me how to get TCL to send VGA output to tthe external monitor port?

Thanks.

Mike7
Asus eeePC 1000HA, Intel Atom N270 CPU, 1GB RAM, 160GB HDD, CorePlus-5.1 on 8GB flash drive.

Online gerald_clark

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Re: External monitor with TCL on Asus netbook?
« Reply #1 on: November 05, 2014, 11:08:07 AM »
Check your BIOS or FN keys for monitor switching before you boot.

Offline Onyarian

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Re: External monitor with TCL on Asus netbook?
« Reply #2 on: November 05, 2014, 11:26:29 AM »
lxrandr.tcz
It detects the external monitor, and then you can switch to it.

Offline Mike7

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Re: External monitor with TCL on Asus netbook?
« Reply #3 on: November 05, 2014, 06:55:40 PM »
Hi, Gerald.

Not sure what you mean here. If it's working in WinXP, doesn't that mean the BIOS and Fn keys are set right?

M.
Asus eeePC 1000HA, Intel Atom N270 CPU, 1GB RAM, 160GB HDD, CorePlus-5.1 on 8GB flash drive.

Online gerald_clark

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Re: External monitor with TCL on Asus netbook?
« Reply #4 on: November 05, 2014, 06:59:24 PM »
My laptop lets me use FN keys to switch the display to an external monitor.  I do that while at the grub boot prompt, then load Core.

Offline Mike7

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Re: External monitor with TCL on Asus netbook?
« Reply #5 on: November 05, 2014, 09:07:39 PM »
Oh, I see. Unfortunately, I don't get a grub boot prompt when I boot Core. It just boots up without it. And there's nothing in the BIOS setup for monitors. Is there some way to force a grub boot prompt?

What about a terminal command that will look at the external monitor port?
Asus eeePC 1000HA, Intel Atom N270 CPU, 1GB RAM, 160GB HDD, CorePlus-5.1 on 8GB flash drive.

Online Misalf

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Re: External monitor with TCL on Asus netbook?
« Reply #6 on: November 06, 2014, 08:13:15 AM »
You should be able to set a countdown / timeout for your boot loader so it waits a few seconds until it loads linux.

Sys/Extlinux
Code: [Select]
TIMEOUT 20
GRUB2
Code: [Select]
set timeout=15
Grub4DOS
Code: [Select]
timeout 5
Download a copy and keep it handy: Core book ;)

Offline Mike7

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Re: External monitor with TCL on Asus netbook?
« Reply #7 on: November 13, 2014, 03:10:49 PM »
Hi, Misalf.

Thanks for the boot codes. I'll give them a try.

M.
Asus eeePC 1000HA, Intel Atom N270 CPU, 1GB RAM, 160GB HDD, CorePlus-5.1 on 8GB flash drive.

Offline Mike7

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Re: External monitor with TCL on Asus netbook?
« Reply #8 on: November 13, 2014, 03:21:50 PM »
Hi, all.

I did a replacement test with a borrowed external flat-screen monitor. This 2nd external monitor works with Core, proving that there is VGA at the computer port when the netbook monitor function key is set to LCD + CRT or CRT only.

So, since there is VGA output, I can't imagine why the CRT external monitor wouldn't work with Core. It's some sort of compatibility issue that I don't understand.

I'll give lxrandr.tcz atry, as Onyarian suggested, but I have a feeling that there won't be a solution to this problem, and that the CRT monitor is just too old to work with Core on my computer.

Cheers.

Mike
Asus eeePC 1000HA, Intel Atom N270 CPU, 1GB RAM, 160GB HDD, CorePlus-5.1 on 8GB flash drive.