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ubuntu 16.04.3 linux amdgpu

Question asked by eelstrebor on Aug 15, 2017
Latest reply on Nov 29, 2017 by charled

I'm having trouble getting my Carrizo chip to work on this linux distro with the amdgpu driver. Sometimes I get a blank screen and sometimes I get a normal video display that eventually goes blank. The laptop does not lock up since I can use SSH to log in from another computer and reboot the computer which may or may not give a login screen. The problem repeats itself. Here is the output from lspci and uname:



00:01.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Carrizo (rev c5)


Linux pavilion 4.12.6-041206-generic #201708111232 SMP Fri Aug 11 16:34:18 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux




Architecture:          x86_64

CPU op-mode(s):        32-bit, 64-bit

Byte Order:            Little Endian

CPU(s):                4

On-line CPU(s) list:   0-3

Thread(s) per core:    2

Core(s) per socket:    2

Socket(s):             1

NUMA node(s):          1

Vendor ID:             AuthenticAMD

CPU family:            21

Model:                 96

Model name:            AMD A10-8700P Radeon R6, 10 Compute Cores 4C+6G

Stepping:              1

CPU MHz:               1600.000

CPU max MHz:           1800.0000

CPU min MHz:           1300.0000

BogoMIPS:              3592.19

Virtualization:        AMD-V

L1d cache:             32K

L1i cache:             96K

L2 cache:              1024K

NUMA node0 CPU(s):     0-3

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 acc_power nopl nonstop_tsc cpuid extd_apicid aperfmperf pni pclmulqdq monitor ssse3 fma cx16 sse4_1 sse4_2 movbe popcnt aes xsave avx f16c lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs xop skinit wdt lwp fma4 tce nodeid_msr tbm topoext perfctr_core perfctr_nb bpext ptsc mwaitx cpb hw_pstate vmmcall fsgsbase bmi1 avx2 smep bmi2 xsaveopt arat npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold avic overflow_recov


If I use the boot option nomodeset the display is stable but the resolution is less than desired.