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hi visitor you don't have to read this.. I saved it here but forgot why.. I'll read it sometime I guess..

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The answer can be found here : http://ubuntuforums.org/showthread.php?t=1613132 nomodeset The newest kernels have moved the video mode setting into the kernel. So all the programming of the hardware specific clock rates and registers on the video card happen in the kernel rather than in the X driver when the X server starts.. This makes it possible to have high resolution nice looking splash (boot) screens and flicker free transitions from boot splash to login screen. Unfortunately, on some cards this doesnt work properly and you end up with a black screen. Adding the nomodeset parameter instructs the kernel to not load video drivers and use BIOS modes instead until X is loaded.

Black screen after recent update

submitted 10 months ago by goldgin

Grub works ok, I can dual boot into windows. Elementary starts, then black screen just before login.... help!

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[–]elementaryBotBot 1 point 10 months ago 

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[–]LemDogUNT 1 point 10 months ago* 

Hmm, I don't use elementaryOS anymore but if I recall the fix for me was to use "Ctrl+Alt+F1" To open up VT1 sign in here with you username and sudo password, then press "Ctrl+Alt+F7" to open up your desktop. If that doesn't work maybe its an issue with proprietary drivers?

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[–]kalamudia 0 points 10 months ago 

i've the same problem. I'm tried: "use "Ctrl+Alt+F1" To open up VT1 sign in here with you username and sudo password, then press "Ctrl+Alt+F7" but still the same. My graphics card is an AMD/ATI RV710 Radeon HD 4550

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[–]LemDogUNT 1 point 10 months ago 

xorg drivers or proprietary?

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[–]kalamudia 1 point 10 months ago 

I'm not 100% sure, but I remember that installed the xorg drivers. Other thing, when i login and the screen turns black, i can see the cursor pointer

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[–]kalamudia 0 points 10 months ago 

Here the 'lshw -c video' info: *-display

description: VGA compatible controller product: RV710 [Radeon HD 4550] vendor: Advanced Micro Devices, Inc. [AMD/ATI] physical id: 0 bus info: pci@0000:01:00.0 version: 00 width: 64 bits clock: 33MHz capabilities: pm pciexpress msi vga_controller bus_master cap_list rom configuration: driver=radeon latency=0 resources: irq:43 memory:e0000000-efffffff memory:feae0000-feaeffff ioport:d000(size=256) memory:feac0000-feadffff

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[–]LemDogUNT 2 points 10 months ago 

Alrighty! Well i'll do the best I can to help! I am not an expert by any means but I have messed with Linux for most of my life, just a warning I by no-means and guaranteeing anything I am saying will work, this is simply the sequence of things I would try to fix the problem myself!!!

Okay, looking at your video info it seems you are in-fact using the xorg drivers which is usually denoted as "driver=radeon" which means this likely isn't a display issue. However if you are simply at wits end trying everything it isn't too hard to reinstall xorg drivers if you'd like to give it a shot.

The commands I've used int he past are as follows:
Try to completely remove all drivers via

2. sudo apt-get purge "fglrx.*"
1. sudo apt-get remove --purge xserver-xorg
Remove your xorg.conf file with

4. sudo apt-get install --reinstall xserver-xorg-core libgl1-mesa-glx:i386 libgl1-mesa-dri:i386 libgl1-mesa-glx:amd64 libgl1-mesa-dri:amd64
3. sudo rm /etc/X11/xorg.conf
Reinstall xorg entirely with
Re-configure xorg with

Then simply reboot, you'll be using default xorg drivers that came vanilla with elementaryOS.

5. sudo dpkg-reconfigure xserver-xorg

Moving on: This might be an issue with the kernel if you ever used a command like "sudo apt-get dist-upgrade" which will automaticly replace the default kernel with the Ubuntu mainline (I once made the decision foolishly to ignore elementaryOS developer Shnatsel and upgraded the kernel for better propitiatory driver support anyway... I received issued similar to what you are receiving right now)

Next: If you can in your tty1 could you tell me what output you receive from entering "uname -r" (This simply reads your kernel version.)

This is important because elementaryOS WILL BREAK if you EVER attempt to fiddle with or update the kernel. DO NOT DO IT EVER.

Here is a source from one of the lead developers "Shnatsel" who talks on this subject in regards to elementaryOS Luna. The principle is the same for freya here, I am not sure what the default Kernel is for elementaryOS but when I last checked it was something like 3.2 but since Freya is derived from 14.04 it might have changed, however I don't think this is the case, if you have a different kernel then the default one and would like to try and switch it back! Let me know and I will try to help again! This isn't something very difficult either!

Edit: Never execute any commands with sudo privileges unless you know EXACTLY what they are doing, I tried to explain which every command does briefly but if you have any questions/concerns now is NOT the time to hesitate.

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[–]kalamudia 0 points 10 months ago 

1. ever I run the command "sudo apt-get dist-upgrade" and now to run "uname -r" appears:

   3.16.0-36-generic

2. ok, I tried to follow your steps, to reinstall xorg drivers, but I had some problems:

sudo rm /etc/X11/xorg.conf

rm: you can not delete "/etc/X11/xorg.conf": the file does not exist

sudo dpkg-reconfigure xserver-xorg

pkg-query: package 'xserver-xorg' is not installed and no information is available Use dpkg --info (= dpkg-deb --info) to examine archive files, and dpkg --contents (= dpkg-deb --contents) to list their contents. /usr/sbin/dpkg-reconfigure: xserver-xorg is not installed

After that I rebooted, and now even I get the login screen, but I can enter the terminal through "Ctrl + Alt + F1"

Thanks

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[–]LemDogUNT 2 points 10 months ago 

I'm not 100% sure I follow, I suggested the xorg solution in-case nothing seemed to work! No worries though, little harm done~ I hope you DID NOT run sudo apt-get dist-upgrade, I was trying to illustrate its not the best option here, sudo apt-get upgrade would suffice.

Did you run the 4th set of commands I listed? This should fix some of the issues you are seeing.

REGARDLESS

It looks like you updated your Kernel was updated to Ubuntu Mainline, this needs to be reverted back to the default elementaryOS Kernel before anything is going to work the way you want it to. I suggest not touching the Kernel in the future.

Try running: sudo apt-get purge linux-generic-lts-trusty

Hopefully this will remove your current kernel and your system should have the backup for the previously installed one which it will revert to if its there.

Edit: Sorry about brevity I'm writing a research paper right now, I won't be able to help you any further until late tonight!

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[–]kalamudia 1 point 10 months ago 

yes, I had understood that it is not advisable to run "dist-upgrade" command, but I'm almost sure he had done before, before having this problem.

anyway, as I said in the previous review ran the five steps you provided me and the fourth did not give me any errors.

also, I ran: sudo apt-get purge linux-generic-lts-trusty, and says that is not installed.

Don't worry about the time, I have no hurry. Very grateful that I can help solve the problem.

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