Bug 209071 - Nouveau dual monitor setup: After unlock xscreensaver, VGA-1 remains black
Summary: Nouveau dual monitor setup: After unlock xscreensaver, VGA-1 remains black
Status: RESOLVED INVALID
Alias: None
Product: Drivers
Classification: Unclassified
Component: Video(DRI - non Intel) (show other bugs)
Hardware: Intel Linux
: P1 normal
Assignee: drivers_video-dri
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2020-08-29 15:12 UTC by Oscar Megía
Modified: 2020-08-30 18:20 UTC (History)
1 user (show)

See Also:
Kernel Version: 5.8.3-arch1-1
Subsystem:
Regression: No
Bisected commit-id:

Attachments
output from lshw (28.92 KB, text/plain)
2020-08-29 15:12 UTC, Oscar Megía 		Details
Add an attachment (proposed patch, testcase, etc.)

Description Oscar Megía 2020-08-29 15:12:13 UTC 
Created attachment 292209 [details]
output from lshw

I have archlinux upgraded system last sunday.

Today after unlock xscreensaver on OpenBox, the screen connected to VGA-1 port remained black. I need to switch off and switch on mypc to make work it.

The is the log from journalctl:

ago 29 15:13:17 mypc kernel: ------------[ cut here ]------------
ago 29 15:13:17 mypc kernel: NETDEV WATCHDOG: enp3s0 (r8169): transmit queue 0 timed out
ago 29 15:13:17 mypc kernel: WARNING: CPU: 1 PID: 0 at net/sched/sch_generic.c:442 dev_watchdog+0x26d/0x280
ago 29 15:13:17 mypc kernel: Modules linked in: snd_seq_dummy snd_hrtimer snd_seq snd_seq_device fuse rfkill squashfs loop nouveau snd_hda_codec_analog snd_hda_codec_generic pktcdvd ledtrig_audio iTCO_wdt snd_hda_codec_hdmi mxm_wmi intel_pmc_bxt ppdev mousedev wmi i2c_algo_bit gpio_ich iTCO_vendor_support snd_hda_intel ttm snd_intel_dspcfg snd_hda_codec drm_kms_helper snd_hda_core input_leds cec r8169 snd_hwdep snd_pcm rc_core snd_timer syscopyarea snd sysfillrect sysimgblt fb_sys_fops realtek soundcore evdev libphy parport_pc mac_hid parport asus_atk0110 intel_agp lpc_ich i2c_i801 intel_gtt i2c_smbus acpi_cpufreq drm sg agpgart crypto_user ip_tables x_tables ext4 crc32c_generic crc16 mbcache jbd2 uas usb_storage hid_generic usbhid hid sr_mod cdrom ata_generic pata_acpi dm_mod serio_raw atkbd libps2 uhci_hcd pata_jmicron ehci_pci ehci_hcd i8042 serio
ago 29 15:13:17 mypc kernel: CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.8.3-arch1-1 #1
ago 29 15:13:17 mypc kernel: Hardware name: System manufacturer System Product Name/P5B, BIOS 2104    03/09/2009
ago 29 15:13:17 mypc kernel: RIP: 0010:dev_watchdog+0x26d/0x280
ago 29 15:13:17 mypc kernel: Code: d8 9b 75 ff eb 85 4c 89 f7 c6 05 b3 df 08 01 01 e8 e8 c7 fa ff 44 89 e9 4c 89 f6 48 c7 c7 70 4a a1 89 48 89 c2 e8 39 76 7e ff <0f> 0b e9 63 ff ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 90 0f 1f 44
ago 29 15:13:17 mypc kernel: RSP: 0018:ffffb332400ece90 EFLAGS: 00010286
ago 29 15:13:17 mypc kernel: RAX: 0000000000000000 RBX: ffff9e51f485ac00 RCX: 0000000000000000
ago 29 15:13:17 mypc kernel: RDX: 0000000000000103 RSI: ffffffff8996a47f RDI: 00000000ffffffff
ago 29 15:13:17 mypc kernel: RBP: ffff9e51f51d23dc R08: 0000000000000433 R09: 0000000000000003
ago 29 15:13:17 mypc kernel: R10: 0000000000000000 R11: 0000000000000001 R12: ffff9e51f51d2480
ago 29 15:13:17 mypc kernel: R13: 0000000000000000 R14: ffff9e51f51d2000 R15: ffff9e51f485ac80
ago 29 15:13:17 mypc kernel: FS:  0000000000000000(0000) GS:ffff9e51f7c80000(0000) knlGS:0000000000000000
ago 29 15:13:17 mypc kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
ago 29 15:13:17 mypc kernel: CR2: 00007f2a199ab28c CR3: 00000001b2a2a000 CR4: 00000000000006e0
ago 29 15:13:17 mypc kernel: Call Trace:
ago 29 15:13:17 mypc kernel:  <IRQ>
ago 29 15:13:17 mypc kernel:  ? pfifo_fast_init+0x110/0x110
ago 29 15:13:17 mypc kernel:  ? pfifo_fast_init+0x110/0x110
ago 29 15:13:17 mypc kernel:  call_timer_fn+0x2d/0x160
ago 29 15:13:17 mypc kernel:  ? pfifo_fast_init+0x110/0x110
ago 29 15:13:17 mypc kernel:  __run_timers+0x193/0x290
ago 29 15:13:17 mypc kernel:  run_timer_softirq+0x2b/0x50
ago 29 15:13:17 mypc kernel:  __do_softirq+0xff/0x340
ago 29 15:13:17 mypc kernel:  asm_call_on_stack+0x12/0x20
ago 29 15:13:17 mypc kernel:  </IRQ>
ago 29 15:13:17 mypc kernel:  do_softirq_own_stack+0x5f/0x80
ago 29 15:13:17 mypc kernel:  irq_exit_rcu+0xcb/0x120
ago 29 15:13:17 mypc kernel:  sysvec_apic_timer_interrupt+0x46/0xe0
ago 29 15:13:17 mypc kernel:  asm_sysvec_apic_timer_interrupt+0x12/0x20
ago 29 15:13:17 mypc kernel: RIP: 0010:native_safe_halt+0xe/0x10
ago 29 15:13:17 mypc kernel: Code: f0 80 48 02 20 48 8b 00 a8 08 75 c3 e9 7a ff ff ff cc cc cc cc cc cc cc cc cc cc cc e9 07 00 00 00 0f 00 2d 86 da 5f 00 fb f4 <c3> 90 e9 07 00 00 00 0f 00 2d 76 da 5f 00 f4 c3 cc cc 0f 1f 44 00
ago 29 15:13:17 mypc kernel: RSP: 0018:ffffb33240097e20 EFLAGS: 00000246
ago 29 15:13:17 mypc kernel: RAX: 0000000000004000 RBX: 0000000000000001 RCX: 000000000000001f
ago 29 15:13:17 mypc kernel: RDX: 4ec4ec4ec4ec4ec5 RSI: ffffffff89a04c55 RDI: ffffffff8999c80e
ago 29 15:13:17 mypc kernel: RBP: ffff9e51f65b1c00 R08: 00001aee947ef30b R09: 0000000000000008
ago 29 15:13:17 mypc kernel: R10: 0000000000002a48 R11: 0000000000000009 R12: ffff9e51f65b1c64
ago 29 15:13:17 mypc kernel: R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000
ago 29 15:13:17 mypc kernel:  acpi_safe_halt+0x1b/0x30
ago 29 15:13:17 mypc kernel:  acpi_idle_enter+0x2b9/0x320
ago 29 15:13:17 mypc kernel:  cpuidle_enter_state+0x81/0x420
ago 29 15:13:17 mypc kernel:  cpuidle_enter+0x29/0x40
ago 29 15:13:17 mypc kernel:  do_idle+0x1fb/0x2c0
ago 29 15:13:17 mypc kernel:  cpu_startup_entry+0x19/0x20
ago 29 15:13:17 mypc kernel:  start_secondary+0x178/0x1c0
ago 29 15:13:17 mypc kernel:  secondary_startup_64+0xb6/0xc0
ago 29 15:13:17 mypc kernel: ---[ end trace 88955c3f67234b66 ]---

I use the video driver nouveau for my NVIDIA GeForce GT 710.

I attached the output from lshw.

If you need more information don't hesitate ask me for it.
Oscar
Comment 1 Ilia Mirkin 2020-08-29 17:28:40 UTC 
It appears that the error you pasted is some sort of hang which has nothing to do with nouveau. What indication do you have that nouveau is involved in any way with this issue?

What was the previous kernel version that worked fine?
Comment 2 Oscar Megía 2020-08-29 20:15:25 UTC 
I'm not an expert, so I thought that the error by the time could be a issue in video driver.

The last kernel was 5.8.1.arch1-1. It was upgraded last sunday.

I left mypc 2 hours unattended and when I typed the password in the monitor that before remained black (I can see the password input window), now has the same issue.

I searched on journalctl and I didn't see the same error. If fact I don't see anyhing important.

I tried executing:

xrandr --auto --output VGA-1 --mode 1280x1024 --right-of DVI-D-1

and the desktop swap monitors, but the monitor black still remains black.

It could be a hardware error. How can I know if is a hardware error?

Regards
Oscar
Comment 3 Oscar Megía 2020-08-30 18:20:58 UTC 
After research I found the problem: The monitor is broken.

Today has happen again. I switched off my pc and after a while I switched it on.

The monitor that fails switched on and after a second the screen switched black, so I switch off my pc and disconnected the other monitor DVI-D-1 and swiched on my pc. The monitor VGA-1 switched on one second during BIOS messages and switched black.

I switched off my pc and disconnected the VGA-1 monitor and connected the DVI-D-1 monitor by the VGA port and switched on my pc. Everything worked fine.

So I guess that my monitor VGA-1 is broken.

Sorry for disturbing you, but with the error message I though that could be an issue in nouveau driver and reporting the bug could help them to solve it.

I close the bug as invalid.

Thanks for your support
Oscar
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