Description of problem:

X won't start with the amdgpu on HP 170g121wm laptop

Version-Release number of selected component (if applicable):


How reproducible:
Constant

Steps to Reproduce:
1. boot 
2.
3.

Actual results:
fancy black screen

Expected results:

X prompt will be highly desirable at this point.

Additional info:

I initially posted the information on LQ - https://www.linuxquestions.org/questions/linux-laptop-and-netbook-25/fedora27-amd-carrizo-4175618793/

Here is the latest log and current config:

https://paste.fedoraproject.org/paste/oYVzqACKKrOvAurqENYO6A - Xorg.log

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[root@hp ~]# ls -l /etc/X11/xorg.conf.d/
total 0

[root@hp ~]# rpm -qa | grep xorg
abrt-addon-xorg-2.10.5-1.fc27.x86_64
xorg-x11-xinit-1.3.4-16.fc27.x86_64
xorg-x11-server-utils-7.7-23.fc27.x86_64
xorg-x11-utils-7.5-25.fc27.x86_64
xorg-x11-xauth-1.0.9-9.fc27.x86_64
xorg-x11-fonts-misc-7.5-18.fc27.noarch
xorg-x11-drv-amdgpu-1.3.0-3.fc27.x86_64
xorg-x11-server-common-1.19.5-1.fc27.x86_64
xorg-x11-xkb-utils-7.7-21.fc27.x86_64
xorg-x11-font-utils-7.5-35.fc27.x86_64
xorg-x11-fonts-ISO8859-1-100dpi-7.5-18.fc27.noarch
xorg-x11-proto-devel-7.7-23.fc27.noarch
xorg-x11-server-Xorg-1.19.5-1.fc27.x86_64


[root@hp ~]# inxi -Fxmz
System:    Host: hp Kernel: 4.13.16-300.fc27.x86_64 x86_64 bits: 64 gcc: 7.2.1
           Desktop: Xfce 4.12.4 (Gtk 2.24.31) Distro: Fedora release 27 (Twenty Seven)
Machine:   Device: laptop System: HP product: HP Pavilion Notebook serial: <filter>
           Mobo: HP model: 80B0 v: 81.29 serial: <filter> UEFI: American Megatrends v: F.19 date: 05/27/2016
Battery    BAT0: charge: 39.7 Wh 98.8% condition: 40.2/40.2 Wh (100%)
           model: Hewlett-Packard Primary status: Charging
CPU:       Quad core AMD A10-8700P Radeon R6 10 Compute Cores 4C+6G (-MCP-) 
           arch: Excavator rev.1 cache: 4096 KB
           flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 sse4a ssse3 svm) bmips: 14372
           clock speeds: max: 1800 MHz 1: 1300 MHz 2: 1800 MHz 3: 1300 MHz 4: 1300 MHz
Memory:    Array-1 capacity: 16 GB devices: 3 EC: None
           Device-1: Bottom-Slot 1 (left) size: 4 GB speed: 1600 MT/s type: DDR3 part: 8KTF51264HZ-1G9P1
           Device-2: Bottom-Slot 2 (right) size: 4 GB speed: 1600 MT/s type: DDR3 part: 8KTF51264HZ-1G9P1
Graphics:  Card: Advanced Micro Devices [AMD/ATI] Carrizo bus-ID: 00:01.0
           Display Server: X.org 1.19.5 drivers: amdgpu (unloaded: modesetting)
           Resolution: 1280x800 Advanced Data: N/A for root
Audio:     Card-1 Advanced Micro Devices [AMD] Device 157a driver: snd_hda_intel bus-ID: 00:09.2
           Card-2 Advanced Micro Devices [AMD/ATI] Kabini HDMI/DP Audio driver: snd_hda_intel bus-ID: 00:01.1
           Sound: Advanced Linux Sound Architecture v: k4.13.16-300.fc27.x86_64
Network:   Card-1: Realtek RTL8101/2/6E PCI Express Fast Ethernet controller
           driver: r8169 v: 2.3LK-NAPI port: e000 bus-ID: 02:00.0
           IF: eno1 state: up speed: 100 Mbps duplex: full mac: <filter>
           Card-2: Realtek RTL8188EE Wireless Network Adapter driver: rtl8188ee port: d000 bus-ID: 03:00.0
           IF: wlo1 state: down mac: <filter>
Drives:    HDD Total Size: 1000.2GB (14.4% used)
           ID-1: /dev/sda model: HGST_HTS541010A9 size: 1000.2GB temp: 27C
Partition: ID-1: / size: 394G used: 11G (3%) fs: ext4 dev: /dev/dm-0
           ID-2: /boot size: 283M used: 268M (100%) fs: ext4 dev: /dev/sda2
           ID-3: /home size: 394G used: 116G (31%) fs: ext4 dev: /dev/dm-2
           ID-4: swap-1 size: 8.59GB used: 0.00GB (0%) fs: swap dev: /dev/dm-1
RAID:      No RAID devices: /proc/mdstat, md_mod kernel module present
Sensors:   System Temperatures: cpu: 30.9C mobo: N/A
           Fan Speeds (in rpm): cpu: N/A
Info:      Processes: 146 Uptime: 1:37 Memory: 252.9/7490.6MB Init: systemd runlevel: 5 Gcc sys: 7.2.1
           Client: Shell (bash 4.4.121) inxi: 2.3.43 

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