Tiny Core Extensions > TCE Q&A Forum
How to troubleshoot with a non-working display?
Zill:
I a using Tiny Core 5.4 with Xorg as my windowing system. For my display I had been using a Dell U2414H monitor connected with an HDMI cable and everything was okay. My monitor was taken from me and replaced with a Dell U2413 connected with the same HDMI cable. Now when I power on my system I can see the boot up messages saying that the extensions are loading. After that I see the Tiny Core disclaimer line, and then the display goes black. I never see the desktop, but I assume this is happening as it is attempting to start. The monitor pops up with a message saying "Entering Power Save Mode". Hitting Ctrl+Alt+Del doesn't dump me to a console. If I turn off the system and then boot from the basic 5.4 iso I downloaded and burned to a cd, then everything comes up just fine. This makes me think that it is Xorg that is having problems. I am able to get the previous monitor back and that will make the problem go away, but I am interested in learning from this experience. How does one attempt to troubleshoot something they can't see? Is there another way to get the console to show up? I don't have a grub prompt where I can type in extra boot codes. Any information would be appreciated.
Rich:
Hi Zill
If X is running, Ctrl-Alt-F1 gets you into the console and Ctrl-Alt-F2 gets you back into X.
Ctrl-Alt-Backspace kills X and puts you into the console.
Zill:
Thanks for the speedy response Rich.
Ctrl-Alt-F1 causes the screen to leave Power Save Mode, but the screen is still black (the difference is the back light turned on).
If I hit Ctrl-Alt-F2 the screen goes back into Power Save Mode (backlight turns off)
Ctrl-Alt-Backspace does nothing.
I did a fresh install to make sure the issue wasn't some corrupted config file, and I am experiencing the same issue.
Rich:
Hi Zill
I don't know, maybe try entering reset or clear at the console and see if you get a prompt (Ctrl-Alt-F1).
gerald_clark:
Did you set a screen resolution with lxrandr ?
If so. remove the config file "~/.config/autostart/lxrandr-autostart.desktop"
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