Hello, I ran a 'yum update' this morning from F11 and then closed the laptop lid and took a bit of shut-eye. When I woke up, the network interfaces seemed to be down and so I rebooted the machine. F11 booted fine up until the login display, where the monitor of my laptop just showed vertical lines all over it. So I rebooted again, before I even get to the bios, it's showing vertical lines. I attached an external monitor and it boots up to GRUB where I can choose WinXP and F11. None work as they either come up with blank screens, vertical lines or random-coloured boxes. I'm really hoping this isn't a graphics card related-problem. If it means anything, I cleaned out the fans and memory too to try and fix this.

Specs:
Dell Vostro
nVidia 8400M GS

Hi ShellPwn,

I'd guess if it's happening in WinXP too then the update was not responsible.. probably hardware, sorry.

cheers

kbp

I have a part of my misspent youth in fixing tvs and monitors. The one thing that gives (a few) vertical lines is a missing syynchrnisation on the horizontal side. The picture will roll sideways. Are you sure you haven't unseated the ram? Have you powered down teetotally? does memtest show your simms? How many vertical lines? a few or loads?

BTW, on bootup, the video mode is the default, 640x480@60Hz, which every monitor should do. Dis you dislodge something cleaning those fans?

Thanks, it got fixed already. It was a faulty motherboard.