https://bugs.freedesktop.org/show_bug.cgi?id=105018 --- Comment #31 from Öyvind Saether --- Kernel 4.17.0-rc3-linus.git-keumjo4.17.0-rc3-linus.git-keumjo on a 2400G with a RX 560 GPU: > login to xfce desktop > type "xset dpms force standby" in a terminal screens go blank and there is no more response from the box, looks dead. But it's possible to ssh into it and find the following information in dmesg: [12743.692027] ------------[ cut here ]------------ [12743.692030] kernel BUG at drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:4708! [12743.692039] invalid opcode: 0000 [#1] SMP NOPTI [12743.692041] Modules linked in: twofish_generic twofish_avx_x86_64 twofish_x86_64_3way twofish_x86_64 twofish_common loop serpent_avx2 serpent_avx_x86_64 serpent_sse2_x86_64 serpent_generic rfcomm fuse rpcsec_gss_krb5 auth_rpcgss nfsv4 dns_resolver nfs lockd grace fscache nf_conntrack_netbios_ns nf_conntrack_broadcast xt_CT ip6t_rpfilter ip6t_REJECT nf_reject_ipv6 xt_conntrack ip_set nfnetlink ebtable_nat ebtable_broute bridge stp llc ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle lz4 lz4_compress ip6table_raw ip6table_security iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack libcrc32c iptable_mangle iptable_raw iptable_security ebtable_filter ebtables ip6table_filter ip6_tables cmac bnep sunrpc vfat fat snd_hda_codec_realtek snd_hda_codec_generic [12743.692069] snd_hda_codec_hdmi snd_hda_intel btusb snd_hda_codec btrtl btbcm edac_mce_amd btintel bluetooth snd_hda_core snd_hwdep snd_seq kvm_amd ccp wmi_bmof kvm snd_seq_device snd_pcm ecdh_generic snd_timer irqbypass rfkill joydev pcspkr snd soundcore shpchp i2c_piix4 k10temp wmi video acpi_cpufreq binfmt_misc dm_crypt amdkfd raid1 amd_iommu_v2 amdgpu chash i2c_algo_bit gpu_sched drm_kms_helper ttm drm crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel r8169 mii [12743.692091] CPU: 6 PID: 3708 Comm: Xorg Not tainted 4.17.0-rc3-linus.git-keumjo #3 [12743.692093] Hardware name: System manufacturer System Product Name/TUF B350M-PLUS GAMING, BIOS 4009 04/14/2018 [12743.692154] RIP: 0010:dm_update_crtcs_state+0x419/0x480 [amdgpu] [12743.692156] RSP: 0018:ffffb4e688f07b30 EFLAGS: 00010246 [12743.692158] RAX: ffff8b720090d001 RBX: ffff8b720527d000 RCX: 000000000008dccc [12743.692160] RDX: 000000000008dccb RSI: ffff8b723eda6160 RDI: ffff8b723e806e80 [12743.692162] RBP: ffff8b720275c000 R08: 0000000000026160 R09: 0000000000000000 [12743.692163] R10: ffffdb50a0024200 R11: 0000000000000a00 R12: 0000000000000000 [12743.692165] R13: ffff8b7205189800 R14: ffff8b720090ec00 R15: ffff8b71f16c8a00 [12743.692167] FS: 00007f88668e2ac0(0000) GS:ffff8b723ed80000(0000) knlGS:0000000000000000 [12743.692169] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [12743.692170] CR2: 00007f885f886000 CR3: 00000007fbc90000 CR4: 00000000003406e0 [12743.692172] Call Trace: [12743.692231] amdgpu_dm_atomic_check+0x1b1/0x3b0 [amdgpu] [12743.692248] drm_atomic_check_only+0x360/0x4f0 [drm] [12743.692264] drm_atomic_commit+0x13/0x50 [drm] [12743.692278] drm_atomic_connector_commit_dpms+0xdb/0x100 [drm] [12743.692292] drm_mode_obj_set_property_ioctl+0x178/0x280 [drm] [12743.692307] ? drm_mode_connector_set_obj_prop+0x80/0x80 [drm] [12743.692320] drm_mode_connector_property_set_ioctl+0x39/0x60 [drm] [12743.692333] drm_ioctl_kernel+0x5b/0xb0 [drm] [12743.692346] drm_ioctl+0x1b3/0x370 [drm] [12743.692359] ? drm_mode_connector_set_obj_prop+0x80/0x80 [drm] [12743.692364] ? _cond_resched+0x15/0x30 [12743.692404] amdgpu_drm_ioctl+0x49/0x80 [amdgpu] [12743.692408] do_vfs_ioctl+0xa4/0x610 [12743.692411] ksys_ioctl+0x60/0x90 [12743.692414] ? ksys_read+0x9c/0xb0 [12743.692416] __x64_sys_ioctl+0x16/0x20 [12743.692420] do_syscall_64+0x5b/0x160 [12743.692423] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 [12743.692425] Code: ff ff e9 21 fe ff ff 48 83 3c 24 00 0f 84 2f fe ff ff 48 8b 3c 24 e8 e7 99 07 00 80 7c 24 0f 00 0f 85 02 fe ff ff e9 40 ff ff ff <0f> 0b 48 83 c4 20 b8 ea ff ff ff 5b 5d 41 5c 41 5d 41 5e 41 5f [12743.692510] RIP: dm_update_crtcs_state+0x419/0x480 [amdgpu] RSP: ffffb4e688f07b30 [12743.692525] ---[ end trace fb5e2b69e8f8d9c9 ]--- There's no recovery from this; service lightdm restart doesn't restart it. shutdown -r now doens't reboot either, just hangs (can't tell why since screens are blank and ssh closes) -- You are receiving this mail because: You are the assignee for the bug.