still stone
I've tried several different solutions in the Linux Mint forums and other places, like editing a grub file somewhere, but none of them worked.
GFX driver:
$ lspci -k | grep -EA3 'VGA|3D|Display'
00:02.0 VGA compatible controller: Intel Corporation Whiskey Lake-U GT1 [UHD Graphics 610] (rev 02)
DeviceName: Onboard - Video
Subsystem: Samsung Electronics Co Ltd Whiskey Lake-U GT1 [UHD Graphics 610]
Kernel driver in use: i915
arctic geyser
When does it blink? Even while idling or under 99% gpu load? (e.g. gaming)
Is it a single blink or a burst of multiple blinks?
After it blinks, send the output of dmesg | grep -E "drm|i915"
still stone
When does it blink? Even while idling or under 99% gpu load? (e.g. gaming)
I've experienced this quite always in this laptop. It happens anytime, even when there is almost nothing open that stresses the hardware.
Sometimes 2 close to each other; sometimes just one... I could see some weird clear-rect of the screen today in that "blink" (e.g. I saw text quickly floating below; or some kind of distortion).
Log:
$ dmesg | grep -E "drm|i915"
[ 0.677175] ACPI: bus type drm_connector registered
[ 0.688156] simple-framebuffer simple-framebuffer.0: [drm] Registered 1 planes with drm panic
[ 0.688161] [drm] Initialized simpledrm 1.0.0 for simple-framebuffer.0 on minor 0
[ 0.689868] simple-framebuffer simple-framebuffer.0: [drm] fb0: simpledrmdrmfb frame buffer device
[ 9.846265] systemd[1]: Starting modprobe@drm.service - Load Kernel Module drm...
[ 10.039402] systemd[1]: modprobe@drm.service: Deactivated successfully.
[ 10.039907] systemd[1]: Finished modprobe@drm.service - Load Kernel Module drm.
[ 17.562192] i915 0000:00:02.0: can't derive routing for PCI INT A
...
[ 17.752452] [drm] Initialized i915 1.6.0 for 0000:00:02.0 on minor 1
[ 17.766791] snd_hda_intel 0000:00:1f.3: bound 0000:00:02.0 (ops i915_audio_component_bind_ops [i915])
[ 17.777653] fbcon: i915drmfb (fb0) is primary device
[ 17.777663] i915 0000:00:02.0: [drm] fb0: i915drmfb frame buffer device
[ 17.784896] i915 0000:00:02.0: [drm] Finished loading DMC firmware i915/kbl_dmc_ver1_04.bin (v1.4)
[ 8333.115510] i915 0000:00:02.0: [drm] *ERROR* CPU pipe A FIFO underrun
I couldn't send the full log, but it's almost just that
Of course on Windows it works perfectly.
arctic geyser
Of course on Windows it works perfectly.
Not sure why you're comparing 2 different OSes with 2 different driver architectures
Anyways, show uname -r
still stone
6.14.0-35-generic
still stone
Not sure why you're comparing 2 different OSes with 2 different driver architect...
It's not an offense, it's just that I forgot to state that
arctic geyser
Boot into grub and add intel_idle.max_cstate=4 to the kernel cmdline
still stone
This is way like what I tried from this post earlier: https://forums.linuxmint.com/viewtopic.php?t=427916
Except you assign a 4 instead of 2...
I don't know how to enter grub though... and when I enter it, I don't know how to get out 🙁
round escarp
@still stone try this
GRUB_CMDLINE_LINUX_DEFAULT='quiet splash intel_iommu=igfx_off'
Run sudo xed /etc/default/grub. Look for the GRUB_CMDLINE_LINUX_DEFAULT line.
Usually, it only has quiet splash. In this case, you have to append the intel_iommu=igfx_off like demonstrated there.
I encountered this before. You may see this thread for more information:
https://ubuntu-mate.community/t/um-24-04-1-boots-to-black-screen/28455/7
still stone
@Keiaa Thanks! I'll restart. Guess it's not as easy to see the blinks...
wow
i didn't restart yet and it just blinked
round escarp
No worries. I'll sleep for now (11:31 PM on my side). Do ping me up here if it works :>
arctic geyser
Run `sudo xed /etc/default/grub`. Look for the `GRUB_CMDLINE_LINUX_DEFAULT` line...
Oh, while this is valid, if the option breaks the kernel, recovery is tedious. Instead, OP can just add the parameter to the command line for the current grub session, which is great for testing. As it disappears after rebooting
I think it's grub menu -> highlight kernel -> f8 or f10 -> add flags if menu appears and boot
arctic geyser
I don't know how to enter grub though... and when I enter it, I don't know how t...
press esc when booting
around the time it shows the manufacturer logo
press it only once
still stone
i found Keiaa's solution a bit easier as typing in the grub menu seems problematic (I don't know if it's now; but there was a specific time where I broke my system and got stuck into the grub boot, where my keyboard keys weren't in my locale layout).
I might try yours if I see it persists though!
But... so far, nothing happened
still stone
Oh, while this is valid, if the option breaks the kernel, recovery is tedious. I...
interesting... so you can have temporary options 😮
arctic geyser
yes
round escarp
Oh, while this is valid, if the option breaks the kernel, recovery is tedious. I...
Yeah, I know... understood. Thanks for clarifying for OP here :>
arctic geyser
OP, can this be flagged as solved?
still stone
OP, can this be flagged as solved?
a bit off the laptop, but sure!
still stone
no, unfortunately it continues blinking even after Keiaa's tip.
still stone
it looks like when my soul feels like playing in the dark, the more the tendency of blinking.
still stone
still stone
@arctic geyser I just logged in to Wayland right now (experimental).
arctic geyser
Yup. See how it is
still stone
It continues blinking sometimes...
My keyboard layout also changed
I can`t type emotes either
not even a setting to change the layout...
arctic geyser
Well, it's 'experimental' for a reason
arctic geyser
It continues blinking sometimes...
Go back to default and show cat /var/lov/Xorg.0.log
still stone
Oh, interesting. So keyboard layouts are only present in X... I"ll try running your command
No such log
arctic geyser
sry path is /var/log/Xorg.0.log
still stone
still stone
Does that log change when the screen blinks? It didn't blink yet
arctic geyser
oh, maybe yeah