Display issue Lenovo T431S

[beerdini (Mark)]

1. Your Parrot information

** ISO information **

Version: 4.10
Desktop Environment: Mate
Edition: Home

2. If you have this problem after fresh installation:

1. How did you create USB bootable?

   -Unetbootin on Windows

2. How did you install OS?

   • Live and default install

3. If your hardware doesn’t work: graphic issue:

Hardware information

- Lenovo ThinkPad T431S
- Display: Intel 3rd gen rev 09

- Did you try searching info about this issue on search engine? Didn't find anything specific

4. How did you get this error? Are there any steps to procedure it?
   1. I ran Parrot Live
   2. Live loads but there are black dashes (-) “staircases” across the laptop’s monitor. Pattern changes if I change resolution and can make all dashes in a vertical column with lower resolutions.
   3. Dashes do not appear in screen captures, just on display
   4. Attaching external monitor by display port makes dashes go away, removing monitor makes them reappear

I first experienced this display issue with Kali after upgrading my previous version to the January 2020 rolling update last year. Parrot did the same behavior, wiping and reinstalling the OS with the latest ISO did not make a difference. Ubuntu, Mint and Windows do not have the same issue, so it is not a problem physically with the hardware, but I cannot figure out how to make these lines/dashes go away without being attached to an external monitor, which beats the purpose of being a laptop. Any assistance is appreciated.

[Masmer (Masmer Snerd)]

Hi Mark. What is is your output for

inxi -G

and

lsmod

and

lspci | grep VGA

[beerdini (Mark)]

Thank you for your reply, here you go:
$inxi -G
Graphics:
Device-1: Intel 3rd Gen Core processor Graphics driver: i915 v: kernel
Device-2: Acer Integrated Camera type: USB driver: uvcvideo
Display: x11 server: X.Org 1.20.10 driver: loaded: modesetting
unloaded: fbdev,vesa resolution: 1600x900~60Hz
OpenGL: renderer: Mesa DRI Intel HD Graphics 4000 (IVB GT2)
v: 4.2 Mesa 20.3.3

$lsmod
Module Size Used by
ctr 16384 2
ccm 20480 6
rfcomm 90112 16
cmac 16384 3
xfrm_user 45056 2
xfrm_algo 16384 1 xfrm_user
algif_hash 16384 1
algif_skcipher 16384 1
af_alg 32768 6 algif_hash,algif_skcipher
bnep 28672 2
intel_rapl_msr 20480 0
nls_cp437 20480 1
joydev 28672 0
vfat 20480 1
fat 86016 1 vfat
intel_rapl_common 32768 1 intel_rapl_msr
btusb 57344 0
snd_hda_codec_hdmi 73728 1
btrtl 24576 1 btusb
btbcm 20480 1 btusb
btintel 32768 1 btusb
x86_pkg_temp_thermal 20480 0
intel_powerclamp 20480 0
bluetooth 688128 43 btrtl,btintel,btbcm,bnep,btusb,rfcomm
iwldvm 159744 0
mei_wdt 16384 0
coretemp 20480 0
snd_hda_codec_realtek 131072 1
wl 6467584 0
snd_hda_codec_generic 94208 1 snd_hda_codec_realtek
uvcvideo 114688 0
mac80211 909312 1 iwldvm
videobuf2_vmalloc 20480 1 uvcvideo
kvm_intel 323584 0
videobuf2_memops 20480 1 videobuf2_vmalloc
libarc4 16384 1 mac80211
snd_hda_intel 57344 3
videobuf2_v4l2 28672 1 uvcvideo
efi_pstore 16384 0
drbg 28672 1
snd_intel_dspcfg 24576 1 snd_hda_intel
videobuf2_common 57344 2 videobuf2_v4l2,uvcvideo
kvm 811008 1 kvm_intel
snd_hda_codec 163840 4 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec_realtek
irqbypass 16384 1 kvm
iwlwifi 274432 1 iwldvm
videodev 266240 3 videobuf2_v4l2,uvcvideo,videobuf2_common
rapl 16384 0
snd_hda_core 106496 5 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hda_codec_realtek
ansi_cprng 16384 0
intel_cstate 16384 0
iTCO_wdt 16384 0
snd_hwdep 16384 1 snd_hda_codec
rmi_smbus 16384 0
serio_raw 20480 0
pcspkr 16384 0
efivars 20480 1 efi_pstore
mc 57344 4 videodev,videobuf2_v4l2,uvcvideo,videobuf2_common
iTCO_vendor_support 16384 1 iTCO_wdt
ecdh_generic 16384 2 bluetooth
intel_uncore 163840 0
ecc 36864 1 ecdh_generic
rmi_core 86016 1 rmi_smbus
sg 36864 0
snd_pcm 131072 4 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hda_core
wmi_bmof 16384 0
watchdog 28672 2 iTCO_wdt,mei_wdt
cfg80211 872448 4 wl,iwldvm,iwlwifi,mac80211
thinkpad_acpi 110592 0
snd_timer 45056 1 snd_pcm
mei_me 45056 1
tpm_tis 16384 0
mei 122880 3 mei_wdt,mei_me
nvram 16384 1 thinkpad_acpi
tpm_tis_core 28672 1 tpm_tis
ledtrig_audio 16384 3 snd_hda_codec_generic,snd_hda_codec_realtek,thinkpad_acpi
snd 106496 15 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hwdep,snd_hda_intel,snd_hda_codec,snd_hda_codec_realtek,snd_timer,thinkpad_acpi,snd_pcm
soundcore 16384 1 snd
tpm 73728 2 tpm_tis,tpm_tis_core
ac 16384 0
rfkill 28672 8 bluetooth,thinkpad_acpi,cfg80211
rng_core 16384 2 tpm
evdev 28672 12
parport_pc 28672 0
ppdev 24576 0
lp 20480 0
parport 61440 3 parport_pc,lp,ppdev
fuse 139264 1
configfs 57344 1
efivarfs 16384 1
ip_tables 32768 0
x_tables 53248 1 ip_tables
autofs4 53248 2
raid10 65536 0
raid456 176128 0
async_raid6_recov 24576 1 raid456
async_memcpy 20480 2 raid456,async_raid6_recov
async_pq 20480 2 raid456,async_raid6_recov
async_xor 20480 3 async_pq,raid456,async_raid6_recov
async_tx 20480 5 async_pq,async_memcpy,async_xor,raid456,async_raid6_recov
raid1 53248 0
raid0 24576 0
multipath 20480 0
linear 20480 0
md_mod 180224 6 raid1,raid10,raid0,linear,raid456,multipath
xfs 1548288 0
btrfs 1511424 1
blake2b_generic 20480 0
xor 24576 2 async_xor,btrfs
zstd_decompress 90112 1 btrfs
zstd_compress 188416 1 btrfs
raid6_pq 122880 4 async_pq,btrfs,raid456,async_raid6_recov
libcrc32c 16384 3 btrfs,xfs,raid456
ext4 778240 0
crc16 16384 2 bluetooth,ext4
mbcache 16384 1 ext4
jbd2 139264 1 ext4
crc32c_generic 16384 0
nls_ascii 16384 1
sd_mod 57344 3
t10_pi 16384 1 sd_mod
crc_t10dif 20480 1 t10_pi
crct10dif_generic 16384 0
crct10dif_pclmul 16384 1
crct10dif_common 16384 3 crct10dif_generic,crc_t10dif,crct10dif_pclmul
crc32_pclmul 16384 0
crc32c_intel 24576 2
ghash_clmulni_intel 16384 0
i915 2592768 4
i2c_algo_bit 16384 1 i915
aesni_intel 368640 8
libaes 16384 2 bluetooth,aesni_intel
drm_kms_helper 249856 1 i915
crypto_simd 16384 1 aesni_intel
cec 61440 2 drm_kms_helper,i915
ahci 40960 2
libahci 45056 1 ahci
cryptd 24576 3 crypto_simd,ghash_clmulni_intel
glue_helper 16384 1 aesni_intel
xhci_pci 20480 0
sdhci_pci 57344 0
ehci_pci 20480 0
xhci_hcd 290816 1 xhci_pci
ehci_hcd 98304 1 ehci_pci
cqhci 32768 1 sdhci_pci
sdhci 73728 1 sdhci_pci
psmouse 180224 0
libata 286720 2 libahci,ahci
mmc_core 184320 3 sdhci,cqhci,sdhci_pci
i2c_i801 32768 0
lpc_ich 28672 0
mfd_core 20480 1 lpc_ich
scsi_mod 258048 3 sd_mod,libata,sg
e1000e 290816 0
usbcore 315392 6 xhci_hcd,ehci_pci,uvcvideo,ehci_hcd,btusb,xhci_pci
ptp 28672 1 e1000e
drm 606208 4 drm_kms_helper,i915
pps_core 24576 1 ptp
usb_common 16384 4 xhci_hcd,usbcore,uvcvideo,ehci_hcd
wmi 36864 1 wmi_bmof
battery 20480 1 thinkpad_acpi
video 53248 2 thinkpad_acpi,i915
button 24576 0

$lspci | grep VGA
00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09)

Please let me know if you need anything else. I can also take and link pics if it helps describe what I am experiencing.

[Masmer (Masmer Snerd)]

@beerdini

i915

As far as I can tell, everything looks OK. (I’m learning Linux for a certification, so am not a Guru yet.) Do you have the following 4 firmware packages installed?

[beerdini (Mark)]

Yes, they are all installed. I appreciate your assistance, so far every other forum that I’ve posted in has been met with crickets.

I’ve included images of what I’m seeing on my screen. I can change the pattern if I change the resolution and can make them go away entirely if I attach an external monitor by displayport, but whats the point of a laptop if you have to plug into an external monitor to use it?

[Masmer (Masmer Snerd)]

I spent a bit of time trying to find anyone else also experiencing horizontal dashes on laptop monitor. Nearly everything is about “screen tearing” which is not what you are experiencing. Strange that it goes away on the laptop screen when you plug in an external monitor.