copied my quake across to a laptop and i have black flashing bars coming down the screen when entering ezquake. ive changed the fps and vid_config_y and x to the laptops settings changed vid frequency to 60 , removed any vid settings i thought were suspect. it loads up but these bars are flashing down the screen. deleted all configs except an autoexec in id so not sure what the issue is hoping i could get some assistance, cheers

any ideas, ? its obviously some kind of hardware problem i guess. any ideas, black flashing bars...

try gl_clear 0 or 1

gl_ztrick

bars turned red..

That's an improvement! ;-)

What happens if you run it in a window?

in a window its fine..

This used to happen to me on a crappy video card. I would open another game (starcraft, quake 3, etc) fullscreen, exit, then quake would work fine.

I had something like this a while ago: http://www.quakeworld.nu/forum/viewtopic.php?id=2465

turned out, that my gfx card became too hot.

Are you sure you have the proper resolution settings?
Are you positive the gfx card can handle those settings?
Does the problem occur immediately, or after a while? If after a while, then indeed vidcard might become too hot as Nix said
Are there programs running in the background that u didn't have on the desktop machine (if so, turn 'm off)?
Does the same problem occur with another qw client, like Fodquake, or Fuhquake? If you try fodquake, all settings have to be in autoeexec.cfg

windows version
linux

These are my Fodquake video settings, change to your liking:

//Video Settings
vid_conheight "240"
vid_conwidth "360"
vid_height "900"
vid_mode "1440,900,32,0,75"
vid_width "1440"

yeah set to desktop settings, and happens immediately so not sure what the issue is..

vid_displayfrequency "60"
vid_config_x "1280"
vid_config_y "800"

ill try fodquake tonight,. no reason why ezquake shouldnt work though..
any other ideas ppl?

same problem with fodquake, must be hardware related.. any other suggestions

maybe it's just the video card being shit? what's the brand/model anyway? you could try software rendering?