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inxi -Fxz
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System: Host: ... Kernel: 4.8.0-53-generic x86_64 (64 bit gcc: 5.4.0)
Desktop: Cinnamon 3.4.6 (Gtk 3.18.9-1ubuntu3.3) Distro: Linux Mint 18.2 Sonya
Machine: Mobo: MSI model: Z97 GAMING 5 (MS-7917) v: 1.0
Bios: American Megatrends v: V1.13 date: 02/16/2016
CPU: Quad core Intel Core i5-4690K (-MCP-) cache: 6144 KB
flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx) bmips: 27997
clock speeds: max: 3900 MHz 1: 3892 MHz 2: 3889 MHz 3: 3899 MHz 4: 3889 MHz
Graphics: Card-1: Intel Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller
bus-ID: 00:02.0
Card-2: Advanced Micro Devices [AMD/ATI] Hawaii PRO [Radeon R9 290/390] bus-ID: 01:00.0
Display Server: X.Org 1.18.4 driver: radeon Resolution: 1920x1080@60.00hz, 2560x1440@59.95hz
GLX Renderer: Gallium 0.4 on AMD HAWAII (DRM 2.46.0 / 4.8.0-53-generic, LLVM 4.0.0)
GLX Version: 3.0 Mesa 17.0.7 Direct Rendering: Yes
Audio: Card-1 Advanced Micro Devices [AMD/ATI] Hawaii HDMI Audio [Radeon R9 290/290X / 390/390X]
driver: snd_hda_intel bus-ID: 01:00.1
Card-2 Intel Xeon E3-1200 v3/4th Gen Core Processor HD Audio Controller
driver: snd_hda_intel bus-ID: 00:03.0
Card-3 Intel 9 Series Family HD Audio Controller driver: snd_hda_intel bus-ID: 00:1b.0
Sound: Advanced Linux Sound Architecture v: k4.8.0-53-generic
Network: Card-1: Qualcomm Atheros Killer E220x Gigabit Ethernet Controller
driver: alx port: d000 bus-ID: 03:00.0
IF: enp3s0 state: down mac: <filter>
Card-2: Qualcomm Atheros AR93xx Wireless Network Adapter driver: ath9k bus-ID: 04:00.0
IF: wlp4s0 state: up mac: <filter>
Drives: HDD Total Size: 2370.5GB (1.0% used) ID-1: /dev/sda model: Samsung_SSD_850 size: 250.1GB
ID-2: /dev/sdb model: KINGSTON_SV300S3 size: 120.0GB
ID-3: /dev/sdc model: WDC_WD20EZRZ size: 2000.4GB
Partition: ID-1: / size: 95G used: 7.6G (9%) fs: ext4 dev: /dev/sdb2
ID-2: swap-1 size: 16.59GB used: 0.00GB (0%) fs: swap dev: /dev/sdb3
RAID: No RAID devices: /proc/mdstat, md_mod kernel module present
Sensors: System Temperatures: cpu: 29.8C mobo: 27.8C gpu: 47.0
Fan Speeds (in rpm): cpu: N/A
Info: Processes: 225 Uptime: 1:04 Memory: 1326.2/15490.2MB Init: systemd runlevel: 5 Gcc sys: 5.4.0
Client: Shell (bash 4.3.481) inxi: 2.2.35
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xrandr --output DisplayPort-2 --mode 2560x1440 --refresh 144
I have done some pretty extensive research on this issue. As I said before, I have tried the AMDGPU-PRO driver install, using some of the popular guides on the site, but I have never had any success with this. With the radeon driver, like I said before, whenever I try to change either monitor's refresh rate above 60 I get very annoying glitchy graphics. It seems like a driver issue but I am no expert. I have read that there could be problems with my GPU's clock speed being set too low by the OS to support the high refresh rates, but playing around with 'power' files in /sys/.../card0/device/ did not fix the issue. Hopefully I provided enough information for you guys to fully understand what I am going through. Please let me know if you need additional info.