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Copying numerous files to USB results in screen blanking?
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fdelente
n00b
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Joined: 04 Oct 2012
Posts: 40

PostPosted: Wed Mar 20, 2013 3:39 pm    Post subject: Copying numerous files to USB results in screen blanking? Reply with quote

Hello.

I have noticed that if I copy several files to an USB mounted disk, or to an SD-Card, my screen turns black, and cannot be turned on again. I cannot even switch to a VT with Ctrl+Alt+F1.

I ssh'ed into the machine and tried to kill as many apps as I could, but nothing helped. Even after the cp finished, I had to reboot the machine as nothing would turn the screen on.

This is on an Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller, according to lspci.

The computer runs perfectly fine otherwise.

Any hint/idea?

Thanks.

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F. Delente
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jpc22
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Joined: 29 Jan 2012
Posts: 190

PostPosted: Thu Mar 21, 2013 11:39 pm    Post subject: Reply with quote

Tell us more, what filesystem , which file manager , which desktop envrionement, and can you get logs or enable a system logger and check what happens.
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fdelente
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Joined: 04 Oct 2012
Posts: 40

PostPosted: Fri Mar 22, 2013 9:42 am    Post subject: Reply with quote

You're right, I've been careless.

This is on an ext4 root system, with XFCE. The USB/SD-Card file systems are vfat.

I've found this in the /var/log/message, I guess this is it:

Mar 19 13:39:15 slick kernel: [ 8184.026251] WARNING: at drivers/gpu/drm/i915/intel_display.c:1225 assert_pipe+0x70/0x75 [i915]()
Mar 19 13:39:15 slick kernel: [ 8184.026251] Hardware name: EasyNote_BG46-P-042FR
Mar 19 13:39:15 slick kernel: [ 8184.026253] pipe A assertion failure (expected on, current off)
Mar 19 13:39:15 slick kernel: [ 8184.026282] Modules linked in: hidp rfcomm ipv6 bnep af_packet vboxnetadp(O) vboxnetflt(O) vboxdrv(O) usb_storage btusb bluetooth snd_hda_codec_realtek snd_hda_intel fbco
n snd_hda_codec bitblit i915 softcursor arc4 font r8169 snd_hwdep snd_pcm uhci_hcd tileblit iwl3945 snd_page_alloc i2c_algo_bit iwlegacy asus_laptop snd_timer drm_kms_helper ehci_hcd intel_agp mac80211 d
rm snd usbcore input_polldev intel_gtt cfg80211 soundcore sparse_keymap agpgart i2c_core usb_common led_class rfkill acpi_cpufreq thermal psmouse video mperf coretemp processor rtc_cmos thermal_sys micro
code battery ac hwmon backlight evdev unix
Mar 19 13:39:15 slick kernel: [ 8184.026284] Pid: 9931, comm: kworker/1:1 Tainted: G W O 3.7.1-tuxonice #1
Mar 19 13:39:15 slick kernel: [ 8184.026284] Call Trace:
Mar 19 13:39:15 slick kernel: [ 8184.026288] [<ffffffff810357ef>] warn_slowpath_common+0x7e/0x96
Mar 19 13:39:15 slick kernel: [ 8184.026291] [<ffffffff8103589b>] warn_slowpath_fmt+0x41/0x43
Mar 19 13:39:15 slick kernel: [ 8184.026303] [<ffffffffa021eb98>] assert_pipe+0x70/0x75 [i915]
Mar 19 13:39:15 slick kernel: [ 8184.026314] [<ffffffffa0224448>] intel_modeset_check_state+0x4cf/0x4f3 [i915]
Mar 19 13:39:15 slick kernel: [ 8184.026326] [<ffffffffa02244c1>] intel_connector_dpms+0x55/0x5a [i915]
Mar 19 13:39:15 slick kernel: [ 8184.026330] [<ffffffffa009cd49>] drm_fb_helper_dpms.isra.12+0x7b/0xbc [drm_kms_helper]
Mar 19 13:39:15 slick kernel: [ 8184.026334] [<ffffffffa009cdbf>] drm_fb_helper_blank+0x35/0x39 [drm_kms_helper]
Mar 19 13:39:15 slick kernel: [ 8184.026336] [<ffffffff811ccf83>] fb_blank+0x51/0x85
Mar 19 13:39:15 slick kernel: [ 8184.026339] [<ffffffffa0279e0c>] fbcon_blank+0xf0/0x1e3 [fbcon]
Mar 19 13:39:15 slick kernel: [ 8184.026342] [<ffffffff8102a934>] ? default_spin_lock_flags+0x9/0xd
Mar 19 13:39:15 slick kernel: [ 8184.026345] [<ffffffff81315222>] ? _raw_spin_lock_irqsave+0x30/0x3a
Mar 19 13:39:15 slick kernel: [ 8184.026347] [<ffffffff81315516>] ? _raw_spin_unlock_irqrestore+0x2e/0x3b
Mar 19 13:39:15 slick kernel: [ 8184.026350] [<ffffffff8103fe2e>] ? __mod_timer+0xd3/0xe5
Mar 19 13:39:15 slick kernel: [ 8184.026353] [<ffffffff81226692>] do_unblank_screen+0xe3/0x139
Mar 19 13:39:15 slick kernel: [ 8184.026356] [<ffffffff812266f3>] unblank_screen+0xb/0xd
Mar 19 13:39:15 slick kernel: [ 8184.026358] [<ffffffff81226d9c>] poke_blanked_console+0x74/0xab
Mar 19 13:39:15 slick kernel: [ 8184.026361] [<ffffffff81226e47>] console_callback+0x74/0xf7
Mar 19 13:39:15 slick kernel: [ 8184.026363] [<ffffffff810486f5>] process_one_work+0x156/0x215
Mar 19 13:39:15 slick kernel: [ 8184.026366] [<ffffffff81226dd3>] ? poke_blanked_console+0xab/0xab
Mar 19 13:39:15 slick kernel: [ 8184.026368] [<ffffffff810492d2>] worker_thread+0x13e/0x1d5
Mar 19 13:39:15 slick kernel: [ 8184.026370] [<ffffffff81049194>] ? manage_workers+0x22c/0x22c
Mar 19 13:39:15 slick kernel: [ 8184.026373] [<ffffffff8104ca55>] kthread+0x88/0x90
Mar 19 13:39:15 slick kernel: [ 8184.026375] [<ffffffff81310000>] ? mm_fault_error+0x100/0x18a
Mar 19 13:39:15 slick kernel: [ 8184.026378] [<ffffffff8104c9cd>] ? kthread_freezable_should_stop+0x39/0x39
Mar 19 13:39:15 slick kernel: [ 8184.026380] [<ffffffff8131613c>] ret_from_fork+0x7c/0xb0
Mar 19 13:39:15 slick kernel: [ 8184.026383] [<ffffffff8104c9cd>] ? kthread_freezable_should_stop+0x39/0x39
Mar 19 13:39:15 slick kernel: [ 8184.026384] ---[ end trace 29520163d096cfb0 ]---

I guess I'll post on the i915 module development mailing list.

Thanks for the hints.

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F. Delente
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DirtyHairy
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Joined: 03 Jul 2006
Posts: 605
Location: Würzburg, Deutschland

PostPosted: Fri Mar 22, 2013 12:27 pm    Post subject: Reply with quote

As a workaround, you might want to try to disabling dpms --- it looks like the driver has issues reviving the screen after dpms blanking.
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