Fedora 28 remove nvidia drivers and use intel integrated graphics

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Hi, I have been using an Nvidia card with some problems on F28, so I have now decided to remove it and use the integrated Intel graphic card, as AFAIK it should work out-of the box (pls correct me if I'm wrong).

Now the screen flickers and gdm doesn't show up, and I believe nvidia drivers are still in use:

$ grep driver /var/log/Xorg.0.log
[   309.841] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-4.18.9-200.fc28.x86_64 root=UUID=bc22e651-487c-4546-bacc-395f8ad0146e ro rd.driver.blacklist=nouveau LANG=it_IT.UTF-8
[   309.841] (WW) Hotplugging is on, devices using drivers 'kbd', 'mouse' or 'vmmouse' will be disabled.
[   309.841]    X.Org XInput driver : 24.1
[   309.907] (II) Loading /usr/lib64/xorg/modules/drivers/nvidia_drv.so

How can I have Fedora to use the Intel default drivers (they seem correctly installed as "dnf list xorg-x11-drv-intel" shows xorg-x11-drv-intel.x86_64 2.99.917-32.20171025.fc28 @fedora as installed) ?

Sorry for my poor skill but I really don't know how to fix it.

$ lspci -k | grep -A 2 -i "VGA"
libkmod: kmod_config_parse: /etc/modprobe.d/disable-nouveau.conf line 2: ignoring bad line starting with 'nouveau'
00:02.0 VGA compatible controller: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller (rev 06)
    Subsystem: ASUSTeK Computer Inc. Device 8534
    Kernel driver in use: i915

Thank you very much for your help and patience,

Andrea