Problems after replacing an ati videocard by a nvidia card (F20, both 512 MB memory)

[poma]

On 07.07.2014 12:11, Joachim Backes wrote:
> Problem description: replacing my ati video card (DVI) by a nvidia card
> (DVI too) generates problems: almost unreadable (flickering) screen
> during boot after some boot progress (even without rhgb), no gdm login
> screen.
>
> The primary F20 system was installed with the ati card.
>
> Running "dracut --force" was no solution.
>
> After investigating a little bit I saw that the grub boot-parameter
> "video=1280x1024-24" was the culprit: replacing "video=1280x1024-24" by
> "video=DVI-D:1280x1024-24".
>
> Both the ati card and the nvidia card have a DVI connector.
>
> So I can't explain this weird effect. Anybody has an explanation?
>
> Kind regards
>
> Joachim Backes
>

Was ist die ausgabe dieses befehls
$ ll /sys/class/drm/

BTW why are you using 'video=' directive?


poma