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#1 2015-12-09 21:37:37
- dominik232
- Member
- Registered: 2012-05-15
- Posts: 27
Lenovo Z51-70 - Screen blanking issue
Hi.
I bought new laptop few months ago. Using Dell Inspiron 7110 for four years with no any problems i totally forgot that some hardware can be problematic on Linux 
I heard that ATI cards are less problematic on Linux now than ten years ago, so... Damn, I could buy something with NVIDIA.
Anyway this hardware works fast and stable as hell with Arch (some other distros tested as well). There is only one issue that I can't fix although fun with search engine took me hours.
Sometimes when I leave laptop for doing something in background (not much - playing music, downloading, receiving mails etc) screen is blanking for obvious reason. Mostly I just touch or press something and I can unlock it and work again. Once in a while screen remains black like there is no power supplied to it. In such case, if I have external screen connected (through VGA) it works. If I don't, I can't see anything. Computer still does its stuff and reacts (for example on CTRL+ALT+F2, CTRL+ALT+DELETE to reebot), but there is no way to get built-in screen back from power saving mode. I could be wrong, but I think that it happens in longer time after computer inactivity.
Same problem is when I use integrated Intel graphics adapter or Radeon (switched on firmware settings before boot).
I've found way to induce similar behaviour. It happens when I stop SDDM (or any other login manager) by stopping service. External screen (even connected after this 'accident') works fine.
Now hardware details
$ lspci
00:00.0 Host bridge: Intel Corporation Broadwell-U Host Bridge -OPI (rev 09)
00:02.0 VGA compatible controller: Intel Corporation Broadwell-U Integrated Graphics (rev 09)
00:03.0 Audio device: Intel Corporation Broadwell-U Audio Controller (rev 09)
00:14.0 USB controller: Intel Corporation Wildcat Point-LP USB xHCI Controller (rev 03)
00:16.0 Communication controller: Intel Corporation Wildcat Point-LP MEI Controller #1 (rev 03)
00:1b.0 Audio device: Intel Corporation Wildcat Point-LP High Definition Audio Controller (rev 03)
00:1c.0 PCI bridge: Intel Corporation Wildcat Point-LP PCI Express Root Port #1 (rev e3)
00:1c.2 PCI bridge: Intel Corporation Wildcat Point-LP PCI Express Root Port #3 (rev e3)
00:1c.3 PCI bridge: Intel Corporation Wildcat Point-LP PCI Express Root Port #4 (rev e3)
00:1d.0 USB controller: Intel Corporation Wildcat Point-LP USB EHCI Controller (rev 03)
00:1f.0 ISA bridge: Intel Corporation Wildcat Point-LP LPC Controller (rev 03)
00:1f.2 SATA controller: Intel Corporation Wildcat Point-LP SATA Controller [AHCI Mode] (rev 03)
00:1f.3 SMBus: Intel Corporation Wildcat Point-LP SMBus Controller (rev 03)
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 15)
03:00.0 Network controller: Intel Corporation Wireless 3160 (rev 93)$ lsmod
Module Size Used by
fuse 90112 2
ctr 16384 3
ccm 20480 3
btusb 45056 0
btbcm 16384 1 btusb
btintel 16384 1 btusb
bluetooth 454656 4 btbcm,btusb,btintel
uvcvideo 90112 0
videobuf2_vmalloc 16384 1 uvcvideo
videobuf2_memops 16384 1 videobuf2_vmalloc
videobuf2_core 40960 1 uvcvideo
v4l2_common 16384 1 videobuf2_core
videodev 139264 3 uvcvideo,v4l2_common,videobuf2_core
media 20480 2 uvcvideo,videodev
snd_hda_codec_hdmi 53248 1
joydev 20480 0
btrfs 942080 0
mousedev 20480 0
arc4 16384 2
rtsx_usb_ms 20480 0
memstick 16384 1 rtsx_usb_ms
xor 24576 1 btrfs
thinkpad_acpi 73728 0
nvram 16384 1 thinkpad_acpi
msr 16384 0
iTCO_wdt 16384 0
iTCO_vendor_support 16384 1 iTCO_wdt
nls_iso8859_1 16384 1
intel_rapl 20480 0
iosf_mbi 16384 1 intel_rapl
x86_pkg_temp_thermal 16384 0
intel_powerclamp 16384 0
nls_cp437 20480 1
coretemp 16384 0
kvm_intel 155648 0
kvm 438272 1 kvm_intel
crct10dif_pclmul 16384 0
crc32_pclmul 16384 0
crc32c_intel 24576 1
aesni_intel 172032 6
aes_x86_64 20480 1 aesni_intel
lrw 16384 1 aesni_intel
vfat 24576 1
gf128mul 16384 1 lrw
glue_helper 16384 1 aesni_intel
ablk_helper 16384 1 aesni_intel
fat 65536 1 vfat
raid6_pq 106496 1 btrfs
iwlmvm 237568 0
cryptd 20480 2 aesni_intel,ablk_helper
mac80211 651264 1 iwlmvm
evdev 20480 11
mac_hid 16384 0
psmouse 122880 0
pcspkr 16384 0
serio_raw 16384 0
i915 1040384 8
snd_hda_codec_realtek 77824 0
iwlwifi 172032 1 iwlmvm
i2c_i801 20480 0
snd_hda_codec_generic 69632 2 snd_hda_codec_realtek
cfg80211 475136 3 iwlwifi,mac80211,iwlmvm
r8169 81920 0
mii 16384 1 r8169
drm_kms_helper 106496 1 i915
snd_hda_intel 28672 5
snd_hda_controller 28672 1 snd_hda_intel
shpchp 36864 0
lpc_ich 24576 0
drm 282624 9 i915,drm_kms_helper
mei_me 24576 0
snd_hda_codec 98304 5 snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_intel,snd_hda_controller
snd_hda_core 24576 5 snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_codec,snd_hda_controller
intel_gtt 20480 1 i915
mei 77824 1 mei_me
i2c_algo_bit 16384 1 i915
snd_hwdep 16384 1 snd_hda_codec
thermal 20480 0
fan 16384 0
wmi 20480 0
ideapad_laptop 24576 0
snd_soc_rt286 32768 0
sparse_keymap 16384 1 ideapad_laptop
rfkill 24576 8 cfg80211,ideapad_laptop,thinkpad_acpi,bluetooth
snd_soc_core 159744 1 snd_soc_rt286
battery 20480 0
ac 16384 0
snd_compress 20480 1 snd_soc_core
snd_pcm_dmaengine 16384 1 snd_soc_core
snd_pcm 90112 7 snd_soc_core,snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel,snd_hda_controller,snd_soc_rt286,snd_pcm_dmaengine
dw_dmac 16384 0
dw_dmac_core 24576 1 dw_dmac
video 24576 1 i915
snd_soc_sst_acpi 16384 0
snd_timer 28672 1 snd_pcm
snd 69632 21 snd_hda_codec_realtek,snd_soc_core,snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_pcm,snd_hda_codec_generic,snd_hda_codec,snd_hda_intel,thinkpad_acpi,snd_compress
i2c_hid 20480 0
soundcore 16384 1 snd
hid 110592 1 i2c_hid
gpio_lynxpoint 16384 0
i2c_designware_platform 16384 0
8250_dw 16384 0
i2c_designware_core 20480 1 i2c_designware_platform
spi_pxa2xx_platform 24576 0
acpi_pad 16384 0
button 16384 1 i915
processor 28672 0
sch_fq_codel 20480 6
loop 28672 0
ip_tables 28672 0
x_tables 28672 1 ip_tables
ext4 512000 2
crc16 16384 2 ext4,bluetooth
mbcache 20480 1 ext4
jbd2 90112 1 ext4
rtsx_usb_sdmmc 28672 0
rtsx_usb 20480 2 rtsx_usb_sdmmc,rtsx_usb_ms
sr_mod 24576 0
cdrom 53248 1 sr_mod
sd_mod 36864 4
atkbd 24576 0
libps2 16384 2 atkbd,psmouse
ahci 36864 3
libahci 28672 1 ahci
libata 204800 2 ahci,libahci
scsi_mod 147456 3 libata,sd_mod,sr_mod
xhci_pci 16384 0
ehci_pci 16384 0
xhci_hcd 155648 1 xhci_pci
ehci_hcd 77824 1 ehci_pci
usbcore 200704 7 btusb,uvcvideo,rtsx_usb,ehci_hcd,ehci_pci,xhci_hcd,xhci_pci
usb_common 16384 1 usbcore
i8042 20480 2 libps2,ideapad_laptop
serio 20480 6 serio_raw,atkbd,i8042,psmouse
sdhci_acpi 16384 0
sdhci 40960 1 sdhci_acpi
led_class 16384 4 sdhci,rtsx_usb_sdmmc,iwlmvm,thinkpad_acpi
mmc_core 114688 3 sdhci,sdhci_acpi,rtsx_usb_sdmmcWhen this happens there is not much in logs about it
(too long to paste)
Full dmesg: http://pastebin.com/zcd2Fin1
Xorg.0.log: http://pastebin.com/eSBD1f8E
Also sometimes I have lots of
[i915]] *ERROR* The master control interrupt lied (SDE)!I read a little about, but not sure if it's related.
PS. I tried linux and linux-lts.
Have someone had similar problems? Some ideas?
Thank you for help in advice.
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#2 2015-12-15 22:57:52
- dominik232
- Member
- Registered: 2012-05-15
- Posts: 27
Re: Lenovo Z51-70 - Screen blanking issue
Bump and update.
It happens again. Using external screen I turned off and on again laptop screen (in KDE System Settings) and this worked again.
Someone?
Maybe I just set some keyboard shortcut to reset screen manually when this happens.
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#3 2016-01-22 19:26:49
- dominik232
- Member
- Registered: 2012-05-15
- Posts: 27
Re: Lenovo Z51-70 - Screen blanking issue
Problem gone with kernel update. Please mark as solved (itself 
)
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