xserver ati/intel black screen "End desctription of problem"

Asked by greg on 2012-08-16

Laptop:HP G-72
Graphic:Intel i915(core i3) and Radeon HD 5470

After Ubuntu 12.04 is installed I reboot and I got black screen.I started filesafe mode and updated the system to 12.04.1.I got balck screen,too.I generated with "> X -configure" the xorg.config file and edited it (I removed obsolete monitors and screens).
And got black screen.After it I edited xorg.conf and added to "radeon" option that set hardware resolution of my notebook screen´s (for my notebook:1600x900" ) and added "Modes" to "Monitor" (1600x900,1024x768,800x600) . After reboot i got black screen but background light was on and I heard the sound played fo login scrreen and I got Terminals tty1 to tty6 but it don´t work always but often.A change to vt-7 is after it impossible.When I am in terminal and nothin do , screensaver start to work and screen is black and keyboard don´t work.It all seems that automatic hardware config of driver or server don´t work properly.The second problem could be that allocation of memory don´t work (i am not programmer). And on the end the booting with splash screen that can i see works but after it black screen. This problem have all laptops with HD 5470I hope that this writing help developers to find the error.

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Ubuntu xserver-xorg-video-intel Edit question
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greg (grzegorz-rozycki) said : #1

I examine log files of xserver and light dm and i found no errors :
xserver works and lightdm ,too

Try the boot option:



greg (grzegorz-rozycki) said : #3

with nomodeset works but this is not the solution of problem

Yes as you can now get updates, is it ok after you update?

greg (grzegorz-rozycki) said : #5

No it isn`t! It`s the same problem!!!

Did you install the proprietary video driver in the desktop?

greg (grzegorz-rozycki) said : #7

yes i did .The proprietary driver doesn't work,too.The same as open source driver

greg (grzegorz-rozycki) said : #8

It probably is problem of distribution of ubuntu.I found on the internet SolusOS distribution and it have no problems on my laptop.
But i am waiting for new ubuntu and i hope it will be working.

greg (grzegorz-rozycki) said : #9

YES!! After 3 months of thinking .... the solution of this problem is:

GIVE to KERNEL following option on booting: acpi=off

it works fine
but this is real problem of acpi layer in kernel.i don't know what have to do X11 in this case?!!