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Black Screen after login Ubuntu guest on OS 10.10.1
Posted: 15. Dec 2014, 20:40
by UMDinfo
I've spent a considerable amount of time trying to fix a VB of Ubuntu 14.04 and I cannot seem to get this to work. It boots fine but boots to a black screen I can get the tty1 display to work but my efforts to get an X display working are fruitless. Please help!!!
Re: Black Screen after login Ubuntu guest on OS 10.10.1
Posted: 15. Dec 2014, 21:00
by socratis
Re: Black Screen after login Ubuntu guest on OS 10.10.1
Posted: 15. Dec 2014, 23:18
by UMDinfo
host+F1 then host+f7 doesn't fix anything.
Re: Black Screen after login Ubuntu guest on OS 10.10.1
Posted: 16. Dec 2014, 00:11
by loukingjr
UMDinfo wrote:host+F1 then host+f7 doesn't fix anything.
actually that fix is for a problem with the Ubuntu 14.10 & 15.04 installers. Not to fix a previously installed guest. Has your guest ever worked? Please attached a zipped copy of the vbox.log file.
Re: Black Screen after login Ubuntu guest on OS 10.10.1
Posted: 16. Dec 2014, 22:23
by UMDinfo
I ended up reinstalling my guest and redoing everything. Everything was working just fine. Now it has happened again after a reboot. I've attached my log files.
Re: Black Screen after login Ubuntu guest on OS 10.10.1
Posted: 16. Dec 2014, 23:06
by Perryg
Did you enable 3D acceleration in the video settings for the guest?
Re: Black Screen after login Ubuntu guest on OS 10.10.1
Posted: 16. Dec 2014, 23:08
by UMDinfo
yes that is enabled.
Re: Black Screen after login Ubuntu guest on OS 10.10.1
Posted: 16. Dec 2014, 23:16
by Perryg
Then you need to post the guests /var/log/vboxadd-install.log and /var/log/Xorg.0.log files as an attachment.
Re: Black Screen after login Ubuntu guest on OS 10.10.1
Posted: 16. Dec 2014, 23:27
by loukingjr
according to the vbox.log you posted you have 5 cores assigned to the guest? Try reducing that to 2. You also have 4GB of RAM assigned to the guest,. Try reducing that to 2GB. You only have a little under 5GB available.
I don't know what this is:
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00:00:01.253042 StreamName <string> = "BioData_Training" (cb=17)
mine says:
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00:00:00.678509 StreamName <string> = "Ubuntu 14.04 LTS" (cb=17)
Re: Black Screen after login Ubuntu guest on OS 10.10.1
Posted: 17. Dec 2014, 00:01
by loukingjr
Your MacBook Pro Retina has two GPUs (Intel HD Graphics 4000 & NVIDIA GeForce GT 650M) and one has automatic switching. I personally don't know how to force a guest to use just one of the GPUs but perhaps someone else does. You should still change your guest settings.
Re: Black Screen after login Ubuntu guest on OS 10.10.1
Posted: 17. Dec 2014, 00:05
by UMDinfo
I changed all the the settings with no luck. Here are the log files that were requested.
Re: Black Screen after login Ubuntu guest on OS 10.10.1
Posted: 17. Dec 2014, 00:12
by loukingjr
I suspect the reason it seemed to work then turned black is because it it's using the wrong GPU. I've never owned a Retina Mac so I can't help there. do a search on the forum for "Retina". I'm sure there are many posts.
Re: Black Screen after login Ubuntu guest on OS 10.10.1
Posted: 17. Dec 2014, 00:35
by Perryg
Can I assume this is from you trying to run with 3D disabled?
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8.115] (EE) Failed to initialize GLX extension (Compatible NVIDIA X driver not found)
Can you dbl check the it is enabled and then post the following from the guests terminal?
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cat /var/log/Xorg.0.log | grep GLX
Re: Black Screen after login Ubuntu guest on OS 10.10.1
Posted: 17. Dec 2014, 00:41
by loukingjr
Just to add something, Retina Macs with dual GPUs automatically switch depending on the application and the need. I read there is no manual way to force the use of one or the other other than a hack.
Re: Black Screen after login Ubuntu guest on OS 10.10.1
Posted: 17. Dec 2014, 00:55
by UMDinfo
3d is definitely enabled. here is the GLX Xorg.
Do I need a new driver?