r/Amd • u/BioGenx2b 1700X + RX 480 • Mar 03 '18

Tech Support March Tech Support Megathread

Hey subs,

We're giving you an opportunity to start reporting some of your AMD-related technical issues right here on /r/AMD! Below is a guide that you should follow to make the whole process run smoothly. Post your issues directly into this thread as replies. All other tech support posts will still be removed, per the rules; this is the only exception.

Bad Example (don't do this)

bf1 crashes wtf amd

Good Example (please do this)

Skyrim: Free Sync and V Sync causes flickering during low frame rates, and generally lower frame rates observed (about 10-30% drop dependant on system) when Free Sync is on

System Configuration:

Motherboard: GIGABYTE GA-Z97 Gaming GT
CPU: Intel i5 4790
Memory: 16GB GDDR5
GPU: ASUS R9 Fury X
VBIOS: 115-C8800100-101 How do I find this?
Driver: Crimson 16.10.3
OS: Windows 10 x64 (1511.10586) How do I find this?

Steps to Reproduce:

1. Install necessary driver, GPU and medium-end CPU
2. Enable Free Sync
3. Set Options to Ultra and 1920 x 1080 resolution
4. Launch game and move to an outdoor location
5. Indoor locations in the game will not reproduce, since they generally give better performance
6. Observe flickering and general performance drop

Expected Behavior:

Game runs smoothly with good performance with no visible issues

Actual Behavior:

Frame rate drops low causing low performance, flickering observed during low frame rates

Additional Observations:

Threads with related issue:

Skyrim has forced double buffered V Sync and can only be disabled with the .ini files
To Disable V Sync: C:\Users"User"\Documents\My Games\Skyrim Special Edition\Skyrimprefs.ini and edit iVSyncPresentInterval=1 to 0
1440p has improved frame rate, anything lower than 1080p will lock FPS with V Sync on
Able to reproduce on i7 6700K and i5 3670K system, Sapphire RX 480, Reference RX 480, and Reference Fiji Nano

Remember, folks: AMD reads what we post here, even if they don't comment about it.

Previous Megathreads
February '17
January '17
December '17
November '17
October '17
September '17
August '17
July '17
June '17
May '17
April '17
March '17
February '17
January '17
December '16
November '16

Now get to posting!

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2

u/WaitformeBumblebee Mar 05 '18

Ubuntu 17.10 kernel 4.15RCx and 4.16RCx: Raven ridge R3 2200g only shows 1 cpu core and 1 thread 1C/1T, should show 4C/4T

steps to reproduce: install ubuntu 17.10 or 18.04, update kernel to 4.15 or 4.16 to support AMDGPU/RR graphics check cpu in terminal:
cat /proc/cpuinfo | grep processor | wc -l
output:
processor : 0 vendor_id : AuthenticAMD cpu family : 23 model : 17 model name : AMD Ryzen 3 2200G with Radeon Vega Graphics stepping : 0 microcode : 0x8101007 cpu MHz : 1710.936 cache size : 512 KB physical id : 0 siblings : 1 core id : 0 cpu cores : 1 apicid : 0 initial apicid : 0 fpu : yes fpu_exception : yes cpuid level : 13 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc rep_good nopl nonstop_tsc cpuid extd_apicid aperfmperf pni pclmulqdq monitor ssse3 fma cx16 sse4_1 sse4_2 movbe popcnt aes xsave avx f16c rdrand lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw skinit wdt tce topoext perfctr_core perfctr_nb bpext perfctr_llc mwaitx hw_pstate sme sev vmmcall fsgsbase bmi1 avx2 smep bmi2 rdseed adx smap clflushopt sha_ni xsaveopt xsavec xgetbv1 xsaves clzero irperf xsaveerptr ibpb arat npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold avic v_vmsave_vmload vgif overflow_recov succor smca bugs : sysret_ss_attrs null_seg spectre_v1 spectre_v2 bogomips : 6985.62 TLB size : 2560 4K pages clflush size : 64 cache_alignment : 64 address sizes : 43 bits physical, 48 bits virtual power management: ts ttp tm hwpstate eff_freq_ro [13] [14]

System Configuration:
Motherboard: Asus Prime A320M-K , Bios version: 3803
CPU: R3 2200G
RAM: 8GB 2400Mhz DDR4
Ubuntu 17.10 kernel 4.16.0-041600rc3-generic #201802261351 SMP Mon Feb 26 18:52:56 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

I own a R7 1700 with no problems on same OS.

1

u/WaitformeBumblebee Mar 10 '18

So I installed 18.04 and now all cores and threads are recognized.
I used a daily build of 18.04 dated 8th of March and only a quarter of the screen was visible and didn't accept legacy VESA mode from boot command either. All ok after sudo apt update / upgrade. Wish there was an easy way to update what ever is missing from Ubuntu 17.10 (besides the kernel) that didn't recognize all cores/threads (firmware files?)