Lubuntu Display Error - Hardware & Software

I just switched from a Radeon card to a Nvidia card (I reset xorg and all that jazz before continuing). When booting into Lubuntu, I get this. [t]http://dl.dropboxusercontent.com/s/dy2p7uri1x8vad1/2013-08-29%2008.18.25.jpg[/t] This also happens when I boot into Lubuntu on a live CD. Here's some more specific specs - [img]http://i.imgur.com/f1y3Cfl.png[/img] Except, y'know, Lubuntu Raring 13.04.

Are you using nouveau or the proprietary driver?

Neither, just whatever is the default. Happens when I boot up from the Live CD as well.

Make sure there's no bent pins in your video cable, then follow these steps: Make sure xorg.conf does [B]not[/B] exist in /etc/X11/xorg.conf. X11 is incredibly good at using the best settings by default now, this is assuming Lubuntu isn't using a really old version of X. Test X11 to see if it works now using startx, if not, install nvidia proprietary drivers and reboot. If it still doesn't work then I'm unsure what's wrong, what nvidia card are you using?

[QUOTE=Naelstrom;42039784]Make sure xorg.conf does [B]not[/B] exist in /etc/X11/xorg.conf. [B]X11 is incredibly good at using the best settings by default now[/B], this is assuming Lubuntu isn't using a really old version of X. Test X11 to see if it works now using startx, if not, install nvidia proprietary drivers and reboot.[/QUOTE] GAHAHAH You're joking right? X11 is [I]terrible[/I] at detecting proper settings for anything regarding video drivers, displays and resolutions. And it's even more terrible because it won't save configurations properly. If the machine boots normally and the garbage only appears while in Linux, X is probably regurgitating on itself because it has the wrong driver loaded, or is set to a bad resolution or refresh rate. You can try doing CTRL + ALT + F3 to get a terminal and make sure you have all instances of the ATI driver uninstalled. If you're using the proprietary Nvidia driver, you need to make sure nv and nouveau is not installed or you'll get endless conflicts. As a last resort you can do "X -configure" to generate an xorg.conf.new in your home folder and copy it to /etc/X11 as xorg.conf. You'll then have to go in and delete a bunch of stuff because X is retarded. It'll usually generate 3-4 "screen identifiers", the same number of video devices and one more thing which I forgot. They're all towards the bottom of the config and come one after another. In the end, you'll want one entry of each section. If you want a surefire way of having X start, where it defines the driver, use "vesa" or "fbdev". Just remember these drivers aren't hardware accelerated so they're going to be painfully slow and eat tons of CPU time.

[QUOTE=GiGaBiTe;42040325]X11 is [I]terrible[/I] at detecting proper settings for anything regarding video drivers, displays and resolutions. And it's even more terrible because it won't save configurations properly.[/QUOTE] You're wrong, X11 [I]used[/I] to be terrible at detecting proper settings for video drivers. I've installed Linux on 4 separate computers each with different hardware and resolutions and it worked perfectly on each without an xorg.conf, and using a bootable usb it has worked successfully on random computers at my school. Ati, intel, and nvidia cards with different screen resolutions and it worked great on all of them. Are you sure it's still terrible? I'd like to reference an [url=https://wiki.archlinux.org/index.php/Xorg#Configuration]Arch Linux[/url] article stating [quote]Arch supplies default configuration files in /etc/X11/xorg.conf.d, and [B]no extra configuration is necessary for most setups.[/B][/quote] X11 [I]used[/I] to be terrible at autoconfiguring, but as of late it's been working great. (At least for archlinux :u) However, you're still right in that it could be the problem. (especially if Lubuntu doesn't update their packages often) Instead of using X11's config generator Dr. Evilcop, you can also try nvidia's nvidia-xconfig, but only if you're using nvidia's proprietary drivers.

[QUOTE=Naelstrom;42043386]You're wrong, X11 [I]used[/I] to be terrible at detecting proper settings for video drivers. I've installed Linux on 4 separate computers each with different hardware and resolutions and it worked perfectly on each without an xorg.conf, and using a bootable usb it has worked successfully on random computers at my school. Ati, intel, and nvidia cards with different screen resolutions and it worked great on all of them. Are you sure it's still terrible?[/QUOTE] And I've installed Fedora, Ubuntu (Xubuntu, Lubuntu), SuSE, Gentoo and Debian on probably hundreds of machines with ATI, AMD, Nvidia, SiS, VIA, 3dfx, S3, 3dlabs and STMicro. Rarely did any of them ever have an Xorg server work properly by default. Some of them were so bad that Xorg failed to even start from the installation CD/DVD and it required an hour of mucking around in xorg.conf to get the display to work without being garbled or segfaulting. In the rare instance that Xorg didn't regurgitate on itself, it almost always set the wrong resolution for the screen (usually so high that the screen couldn't show it, or at a bad refresh rate.) I stand by that Xorg is terrible at detecting drivers, displays and resolutions. Regardless of the distro. [QUOTE=Naelstrom;42043386]I'd like to reference an [url=https://wiki.archlinux.org/index.php/Xorg#Configuration]Arch Linux[/url] article stating X11 [I]used[/I] to be terrible at autoconfiguring, but as of late it's been working great. (At least for archlinux :u) However, you're still right in that it could be the problem. (especially if Lubuntu doesn't update their packages often) Instead of using X11's config generator Dr. Evilcop, you can also try nvidia's nvidia-xconfig, but only if you're using nvidia's proprietary drivers.[/QUOTE] Words in some wiki written by an anonymous internet persona is not indicative of real world situations.

[QUOTE=GiGaBiTe;42044309]And I've installed Fedora, Ubuntu (Xubuntu, Lubuntu), SuSE, Gentoo and Debian on probably hundreds of machines with ATI, AMD, Nvidia, SiS, VIA, 3dfx, S3, 3dlabs and STMicro. Rarely did any of them ever have an Xorg server work properly by default. Some of them were so bad that Xorg failed to even start from the installation CD/DVD and it required an hour of mucking around in xorg.conf to get the display to work without being garbled or segfaulting. In the rare instance that Xorg didn't regurgitate on itself, it almost always set the wrong resolution for the screen (usually so high that the screen couldn't show it, or at a bad refresh rate.) I stand by that Xorg is terrible at detecting drivers, displays and resolutions. Regardless of the distro. Words in some wiki written by an anonymous internet persona is not indicative of real world situations.[/QUOTE] You're right then, my mistake. X11 has worked fine for me on modern computers. However an active wiki is an acceptable source due to information on it having to be generally accepted by the users in order for it to appear. Given how active it is, it's pretty generally accepted that X11 works fine without extra configuration.

[QUOTE=Naelstrom;42044545]Given how active it is, it's pretty generally accepted that X11 works fine without extra configuration.[/QUOTE] X11 works fine on video devices used by the majority because of the endless bitching about getting it fixed. It doesn't work well on lesser used video devices and often requires mucking around with a custom xorg.conf. Niche video devices are almost always broken and will always be broken unless you write your own drivers (ie. STMicro Kyro/Kyro II, SiS, VIA, Matrox, etc.) And 'Working Fine" is a bit of a misnomer. If by that you mean you get stuff displaying on the screen, then of course it works fine. But if by "Works Fine" you mean GUI hardware acceleration/3D acceleration, you'd be wrong.