Comment # 4
on bug 111482
from Robert
I guess it's also not of interest but if I pull the DisplayPort cable and pull it in again I get this error via "dmesg" (this happens every time I do this): """ [Wed Aug 28 00:12:08 2019] ------------[ cut here ]------------ [Wed Aug 28 00:12:08 2019] WARNING: CPU: 6 PID: 1995 at drivers/gpu/drm/amd/amdgpu/../display/dc/dcn20/dcn20_resource.c:2800 dcn20_validate_bandwidth.cold+0xe/0x18 [amdgpu] [Wed Aug 28 00:12:08 2019] Modules linked in: xt_nat veth xt_MASQUERADE nf_conntrack_netlink nfnetlink xfrm_user xfrm_algo iptable_nat br_netfilter overlay wireguard(O) ip6_udp_tunnel udp_tunnel edac_mce_amd kvm_amd sr_mod cdrom uas usb_storage stv6110x lnbp21 kvm btusb btrtl snd_hda_codec_realtek btbcm btintel nls_iso8859_1 snd_hda_codec_generic nls_cp437 ledtrig_audio snd_hda_codec_hdmi vfat fat stv090x bluetooth snd_hda_intel crct10dif_pclmul crc32_pclmul snd_hda_codec ghash_clmulni_intel bridge snd_hda_core eeepc_wmi asus_wmi snd_hwdep sparse_keymap ngene stp ecdh_generic snd_pcm dvb_core aesni_intel ecc videobuf2_vmalloc joydev snd_timer ccp videobuf2_memops llc video wmi_bmof mxm_wmi videobuf2_common sp5100_tco mousedev evdev aes_x86_64 input_leds snd crypto_simd led_class mac_hid cryptd glue_helper i2c_piix4 rfkill pcspkr rng_core soundcore videodev igb mc dca wmi button acpi_cpufreq nf_log_ipv6 ip6t_REJECT nf_reject_ipv6 xt_hl ip6t_rt nf_log_ipv4 nf_log_common ipt_REJECT nf_reject_ipv4 xt_LOG [Wed Aug 28 00:12:08 2019] xt_multiport xt_limit xt_addrtype xt_tcpudp xt_conntrack ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast nf_nat_ftp nf_nat nf_conntrack_ftp nfsd nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 libcrc32c iptable_filter bpfilter auth_rpcgss nfs_acl lockd grace sch_fq_codel sunrpc sg crypto_user ip_tables x_tables ext4 crc32c_generic crc16 mbcache jbd2 hid_logitech_hidpp sd_mod hid_logitech_dj hid_generic usbhid hid crc32c_intel ahci xhci_pci libahci xhci_hcd libata usbcore nvme scsi_mod usb_common nvme_core amdgpu amd_iommu_v2 gpu_sched i2c_algo_bit ttm drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops drm agpgart vfio_pci irqbypass vfio_virqfd vfio_iommu_type1 vfio [Wed Aug 28 00:12:08 2019] CPU: 6 PID: 1995 Comm: Xorg Tainted: G W O 5.3.0-rc3-amd-staging-drm-next-git-b8cd95e15410 #1 [Wed Aug 28 00:12:08 2019] Hardware name: System manufacturer System Product Name/ROG STRIX X570-E GAMING, BIOS 1005 08/01/2019 [Wed Aug 28 00:12:08 2019] RIP: 0010:dcn20_validate_bandwidth.cold+0xe/0x18 [amdgpu] [Wed Aug 28 00:12:08 2019] Code: d9 05 ef e0 18 00 8b 54 24 08 0f b7 44 24 2e 80 cc 0c 66 89 44 24 2c e9 83 ed f4 ff 48 c7 c7 50 49 80 c0 31 c0 e8 dd 8b 9b cb <0f> 0b 45 89 f5 e9 5e f3 f4 ff 48 c7 c7 50 49 80 c0 31 c0 e8 c5 8b [Wed Aug 28 00:12:08 2019] RSP: 0018:ffff9e5e09b43a98 EFLAGS: 00010246 [Wed Aug 28 00:12:08 2019] RAX: 0000000000000024 RBX: 4079400000000000 RCX: 0000000000000000 [Wed Aug 28 00:12:08 2019] RDX: 0000000000000000 RSI: ffff8e847e997448 RDI: ffff8e847e997448 [Wed Aug 28 00:12:08 2019] RBP: ffff8e8337650000 R08: ffff8e847e997448 R09: 0000000000000004 [Wed Aug 28 00:12:08 2019] R10: 0000000000000000 R11: 0000000000000001 R12: ffff8e8470d00000 [Wed Aug 28 00:12:08 2019] R13: 0000000000000000 R14: 0000000000000001 R15: ffff8e84708e6000 [Wed Aug 28 00:12:08 2019] FS: 00007f1c3fdbfdc0(0000) GS:ffff8e847e980000(0000) knlGS:0000000000000000 [Wed Aug 28 00:12:08 2019] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [Wed Aug 28 00:12:08 2019] CR2: 00007f4398fee528 CR3: 0000000ff4c52000 CR4: 0000000000340ee0 [Wed Aug 28 00:12:08 2019] Call Trace: [Wed Aug 28 00:12:08 2019] dc_validate_global_state+0x28a/0x310 [amdgpu] [Wed Aug 28 00:12:08 2019] amdgpu_dm_atomic_check+0x5a2/0x800 [amdgpu] [Wed Aug 28 00:12:08 2019] drm_atomic_check_only+0x550/0x780 [drm] [Wed Aug 28 00:12:08 2019] drm_atomic_commit+0x13/0x50 [drm] [Wed Aug 28 00:12:08 2019] drm_atomic_connector_commit_dpms+0xd7/0x100 [drm] [Wed Aug 28 00:12:08 2019] drm_mode_obj_set_property_ioctl+0x159/0x2b0 [drm] [Wed Aug 28 00:12:08 2019] ? drm_connector_set_obj_prop+0x90/0x90 [drm] [Wed Aug 28 00:12:08 2019] drm_connector_property_set_ioctl+0x39/0x60 [drm] [Wed Aug 28 00:12:08 2019] drm_ioctl_kernel+0xaa/0xf0 [drm] [Wed Aug 28 00:12:08 2019] drm_ioctl+0x208/0x390 [drm] [Wed Aug 28 00:12:08 2019] ? drm_connector_set_obj_prop+0x90/0x90 [drm] [Wed Aug 28 00:12:08 2019] ? ep_read_events_proc+0xd0/0xd0 [Wed Aug 28 00:12:08 2019] amdgpu_drm_ioctl+0x49/0x80 [amdgpu] [Wed Aug 28 00:12:08 2019] do_vfs_ioctl+0x40c/0x670 [Wed Aug 28 00:12:08 2019] ksys_ioctl+0x5e/0x90 [Wed Aug 28 00:12:08 2019] __x64_sys_ioctl+0x16/0x20 [Wed Aug 28 00:12:08 2019] do_syscall_64+0x4e/0x120 [Wed Aug 28 00:12:08 2019] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [Wed Aug 28 00:12:08 2019] RIP: 0033:0x7f1c411f221b [Wed Aug 28 00:12:08 2019] Code: 0f 1e fa 48 8b 05 75 8c 0c 00 64 c7 00 26 00 00 00 48 c7 c0 ff ff ff ff c3 66 0f 1f 44 00 00 f3 0f 1e fa b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 45 8c 0c 00 f7 d8 64 89 01 48 [Wed Aug 28 00:12:08 2019] RSP: 002b:00007ffe5a751d68 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [Wed Aug 28 00:12:08 2019] RAX: ffffffffffffffda RBX: 00007ffe5a751da0 RCX: 00007f1c411f221b [Wed Aug 28 00:12:08 2019] RDX: 00007ffe5a751da0 RSI: 00000000c01064ab RDI: 000000000000000d [Wed Aug 28 00:12:08 2019] RBP: 00000000c01064ab R08: 0000000000000000 R09: 000056432099ffb0 [Wed Aug 28 00:12:08 2019] R10: 0000000000000000 R11: 0000000000000246 R12: 000056431ed03f90 [Wed Aug 28 00:12:08 2019] R13: 000000000000000d R14: 00005643226d4d70 R15: 0000000000000000 [Wed Aug 28 00:12:08 2019] ---[ end trace 7f6319103d8b887e ]--- """ Besides the error nothing else happens. Display is still working fine afterwards (besides the still high power consumption). As Andrew already mentioned my card also stays at the highest frequency: """ cat /sys/class/drm/card0/device/pp_dpm_mclk 0: 100Mhz 1: 500Mhz 2: 625Mhz 3: 875Mhz * """
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