You are not logged in.
My custom Lenovo 540 laptop works well in Win 8, but in Arch the screen has been flickering since May. I'm using i3wm, but a blank startx also flickers. By "flicker" I mean the colors smoothly but quickly transition darker and lighter. I believe an update caused this,
lspci:
00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor DRAM Controller (rev 06)
00:02.0 VGA compatible controller: Intel Corporation 4th Gen Core Processor Integrated Graphics Controller (rev 06)
00:03.0 Audio device: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor HD Audio Controller (rev 06)
00:14.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB xHCI (rev 05)
00:16.0 Communication controller: Intel Corporation 8 Series/C220 Series Chipset Family MEI Controller #1 (rev 04)
00:19.0 Ethernet controller: Intel Corporation Ethernet Connection I217-V (rev 05)
00:1a.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #2 (rev 05)
00:1b.0 Audio device: Intel Corporation 8 Series/C220 Series Chipset High Definition Audio Controller (rev 05)
00:1c.0 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #1 (rev d5)
00:1c.1 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #2 (rev d5)
00:1c.2 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #3 (rev d5)
00:1c.4 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #5 (rev d5)
00:1d.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #1 (rev 05)
00:1f.0 ISA bridge: Intel Corporation HM86 Express LPC Controller (rev 05)
00:1f.2 SATA controller: Intel Corporation 8 Series/C220 Series Chipset Family 6-port SATA Controller 1 [AHCI mode] (rev 05)
00:1f.3 SMBus: Intel Corporation 8 Series/C220 Series Chipset Family SMBus Controller (rev 05)
02:00.0 Network controller: Intel Corporation Wireless 7260 (rev 83)
08:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5227 PCI Express Card Reader (rev 01)lsmod
Module Size Used by
fuse 94208 3
sha256_ssse3 32768 1
sha256_generic 24576 1 sha256_ssse3
hmac 16384 1
drbg 32768 1
ansi_cprng 16384 0
ctr 16384 1
ccm 20480 1
bnep 20480 2
nls_iso8859_1 16384 1
nls_cp437 20480 1
vfat 20480 1
fat 65536 1 vfat
uvcvideo 86016 0
videobuf2_vmalloc 16384 1 uvcvideo
videobuf2_memops 16384 1 videobuf2_vmalloc
videobuf2_v4l2 20480 1 uvcvideo
videobuf2_core 36864 2 uvcvideo,videobuf2_v4l2
videodev 151552 3 uvcvideo,videobuf2_core,videobuf2_v4l2
media 32768 2 uvcvideo,videodev
joydev 20480 0
mousedev 20480 0
btusb 40960 0
btrtl 16384 1 btusb
btbcm 16384 1 btusb
btintel 16384 1 btusb
intel_rapl 20480 0
bluetooth 454656 26 bnep,btbcm,btrtl,btusb,btintel
x86_pkg_temp_thermal 16384 0
intel_powerclamp 16384 0
snd_hda_codec_realtek 69632 1
arc4 16384 2
coretemp 16384 0
kvm_intel 184320 0
snd_hda_codec_generic 69632 1 snd_hda_codec_realtek
iwlmvm 262144 0
snd_hda_codec_hdmi 45056 1
mac80211 655360 1 iwlmvm
snd_hda_intel 32768 4
i2c_i801 20480 0
kvm 499712 1 kvm_intel
irqbypass 16384 1 kvm
crct10dif_pclmul 16384 0
crc32_pclmul 16384 0
crc32c_intel 24576 0
ghash_clmulni_intel 16384 0
aesni_intel 167936 2
aes_x86_64 20480 1 aesni_intel
lrw 16384 1 aesni_intel
iTCO_wdt 16384 0
gf128mul 16384 1 lrw
iTCO_vendor_support 16384 1 iTCO_wdt
glue_helper 16384 1 aesni_intel
ablk_helper 16384 1 aesni_intel
cryptd 20480 3 ghash_clmulni_intel,aesni_intel,ablk_helper
rtsx_pci_ms 20480 0
iwlwifi 184320 1 iwlmvm
pcspkr 16384 0
memstick 16384 1 rtsx_pci_ms
input_leds 16384 0
psmouse 122880 0
thinkpad_acpi 77824 1
serio_raw 16384 0
snd_hda_codec 106496 4 snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_intel
thermal 20480 0
cfg80211 495616 3 iwlwifi,mac80211,iwlmvm
nvram 16384 1 thinkpad_acpi
wmi 20480 0
led_class 16384 3 iwlmvm,thinkpad_acpi,input_leds
snd_hda_core 61440 5 snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_codec,snd_hda_intel
battery 20480 0
rfkill 20480 7 cfg80211,thinkpad_acpi,bluetooth
snd_hwdep 16384 1 snd_hda_codec
snd_pcm 86016 4 snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel,snd_hda_core
snd_timer 28672 1 snd_pcm
tpm_tis 20480 0
ac 16384 0
evdev 24576 14
mac_hid 16384 0
shpchp 32768 0
e1000e 217088 0
fjes 28672 0
snd 65536 17 snd_hda_codec_realtek,snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_pcm,snd_hda_codec_generic,snd_hda_codec,snd_hda_intel,thinkpad_acpi
tpm 36864 1 tpm_tis
ptp 20480 1 e1000e
pps_core 20480 1 ptp
mei_me 32768 0
mei 81920 1 mei_me
lpc_ich 24576 0
processor 32768 0
ie31200_edac 16384 0
edac_core 45056 1 ie31200_edac
soundcore 16384 1 snd
sch_fq_codel 20480 5
ip_tables 28672 0
x_tables 28672 1 ip_tables
ext4 520192 2
crc16 16384 2 ext4,bluetooth
jbd2 90112 1 ext4
mbcache 16384 3 ext4
sr_mod 24576 0
cdrom 49152 1 sr_mod
sd_mod 36864 6
rtsx_pci_sdmmc 24576 0
mmc_core 114688 1 rtsx_pci_sdmmc
atkbd 24576 0
libps2 16384 2 atkbd,psmouse
ahci 36864 5
libahci 28672 1 ahci
libata 196608 2 ahci,libahci
scsi_mod 155648 3 libata,sd_mod,sr_mod
xhci_pci 16384 0
ehci_pci 16384 0
xhci_hcd 159744 1 xhci_pci
ehci_hcd 69632 1 ehci_pci
rtsx_pci 45056 2 rtsx_pci_ms,rtsx_pci_sdmmc
usbcore 200704 6 btusb,uvcvideo,ehci_hcd,ehci_pci,xhci_hcd,xhci_pci
usb_common 16384 1 usbcore
i8042 24576 1 libps2
serio 20480 7 serio_raw,atkbd,i8042,psmouse
i915 1204224 4
video 36864 2 i915,thinkpad_acpi
button 16384 1 i915
intel_gtt 20480 1 i915
i2c_algo_bit 16384 1 i915
drm_kms_helper 114688 1 i915
syscopyarea 16384 1 drm_kms_helper
sysfillrect 16384 1 drm_kms_helper
sysimgblt 16384 1 drm_kms_helper
fb_sys_fops 16384 1 drm_kms_helper
drm 294912 5 i915,drm_kms_helperAnother problem showed up at the same time; the keyboard skips, repeats, and flips letters--this makes it unusable. Luckily the keyboard reverts to its normal behavior after some minutes or some hours (lately, only seconds). However this occurs even without x running (during the terminal login); so if it's a separate issue I want to focus just on the screen flicker. While the screen flicker doesn't just go away after booting, it does get much less frequent the longer x is on. I've left Windows 8 on for long periods of time and observed no flickers or keyboard troubles at all, so I'm confident this isn't a hardware problem. Furthermore, the laptop had been working fine for around three years or so before May 2016, so I'm fairly confident a late May/early June 2016 update causes the flicker.
Last edited by helasraizam (2016-06-28 19:07:33)
Offline
Fixed the keyboard--loose connection. No luck with the flickering screen, however.
Offline