I hope this questions belongs here.
How did you do
exactly?
I’m considering to buy this device but can’t find an instruction that tells me how to do that.
EDIT:
I found this solution here in the forum: How to add custom kernel options in v4.1?
Is this also the way you did it?
/etc/default/grub . GRUB_CMDLINE_LINUX=
After quiet add i915.enable_psr=0 and save file
Run this command in dom0:
sudo grub2-mkconfig --output=/boot/grub2/grub.cfg
thanks!
The default installation image for Qubes 4.1.0 works for me, but the fix for the flickering by @enmus does not work for me.
What else can I try to fix the flickering? It happens whenever I move the mouse.
This is not a good place to ask for a help on the issue.
It would be better if you’d create separate topic or searched the forum.
Hi,
I have also the flickering issue. I found here solutions: add i915.enable_psr=0 as kernel parameter and here: [ xfwm4…] (Flickering screen after 4.1 update - #8 by kindasecure)
Neither helped for me.
Here my HCL Report (cant upload).
Any idea?
layout:
‘hcl’
type:
‘notebook’
hvm:
‘yes’
iommu:
‘yes’
slat:
‘yes’
tpm:
‘unknown’
remap:
‘yes’
brand: |
TUXEDO
model: |
TUXEDO InfinityBook Pro 14 Gen6
bios: |
N.1.15A09
cpu: |
11th Gen Intel(R) Core™ i5-11300H @ 3.10GHz
cpu-short: |
FIXME
chipset: |
Intel Corporation 11th Gen Core Processor Host Bridge/DRAM Registers [8086:9a14] (rev 01)
chipset-short: |
FIXME
gpu: |
Intel Corporation TigerLake-LP GT2 [Iris Xe Graphics] [8086:9a49] (rev 01) (prog-if 00 [VGA controller])
gpu-short: |
FIXME
network: |
Intel Corporation Wi-Fi 6 AX201 (rev 20)
memory: |
16125
scsi: |
usb: |
3
versions:
Welcome to the qubes forum!
mh… dunno how the driver situation for your gpu is.
what is the output of:
sudo glxinfo | grep Accelerated in your dom0?
What kernelmodule is active at lspci -v | grep --after-context 25 VGA?
Thanks.
Accelerated: yes
and
Kernel driver in use: i915
Should i post the whole text?
That looks good, so you have the driver and it seems to work.
Unfortunately i am not sure what to try next.
Maybe switching out the compositor and/or try some vsync related settings? Somebody else tried that compton (other compositor) without it helping.
I am not sure that this is a strictly qubes related issue, so maybe also try to look for “xfce4 flickering” for other distros.
Sorry i could not help more 
Thanks, I try…
A played a little bit.
Compositor off doesnt help.
I have found that with an external monitor it works. it concerns the internal display (3k).
The “vsync related settings”. I dont know where an how. But i will search for it.
I recently switched to compton and saw that there are some settings for that there.
That is interesting!
Have you tried to reduce the resolution to FHD just to see if this happens then too or play with refresh rates?
Now I have a track.
There is also a help from the manufacturer of laptop. the result of last command made me wonder.
The 'i915.enable_psr=0’ parameter is not showing!?
Maybe the grub update command is not correct. Stepp by step:
sudo nano /etc/default/grub => Ok and saved
GRUB_CMDLINE_LINUX_DEFAULT= => I dont have such a command line
Only have one line: GRUB_CMDLINE_LINUX="…" and another line: GRUB_CMDLINE_XEN_DEFAULT="…" and another line: GRUB_CMDLINE_LINUX="$GRUB_CMDLINE_LINUX …"
I tried each of the three variants with the i915 parameter. But the result of cat /proc/cmdline command doesn’t contain i915.enable_psr=0.
Is the command cat /proc/cmdline wrong or ist the grub update command wrong? I tried all:
sudo update-grub => not working because of grub2 i think
sudo grub2-mkconfig --output=/boot/grub2/grub.cfg => done
sudo grub2-mkconfig -o /boot/grub2/grub.cfg => done
sudo grub2-mkconfig -o /etc/grub2-efi.cfg UEFI new?
sudo grub2-mkconfig -o /boot/efi/EFI/fedora/grub.cfg UEFI old?
sudo grub2-mkconfig -o /etc/grub2.cfg ?
Updating_the_GRUB_configuration_file
I am a little bit confused now. I think a have UEFI.
But never the result of cat /proc/cmdline command doesn’t contain i915.enable_psr=0.
(Qubes R4.1 / Fedora 34)
Ok, I found this. I dont understand the change from Fedora 33 to 34 really.
sudo nano /etc/default/grub => to edit and save Ok.
=> sudo grub2-mkconfig -o /boot/efi/EFI/fedora/grub.cfg => to refrain
=> sudo grub2-mkconfig -o /etc/grub2-efi.cfg => from Fedora 34 ?
or => sudo grub2-mkconfig -o /boot/grub2/grub.cfg
Ok, the question is now: How can i update grub.
https://www.qubes-os.org/doc/how-to-install-software-in-dom0/#changing-default-kernel
The sudo grub2-mkconfig -o /boot/grub2/grub.cfg ignore the i915 parameter.
This is the ´sudo nano /etc/default/grub`
GRUB_TIMEOUT=5
GRUB_DISTRIBUTOR="$(sed ‘s, release .*$,g’ /etc/system-release)"
GRUB_DEFAULT=saved
GRUB_SAVEDEFAULT=true <= i added this, tried it also without this line
GRUB_DISABLE_SUBMENU=false <= this was before true, tried it also true
GRUB_TERMINAL_OUTPUT=“gfxterm”
GRUB_CMDLINE_LINUX=“rd.lvm.lv=qubes_dom0/root rd.lvm.lv=qubes_dom0/swap plymouth.ignore-serial-consoles rd.driver.pre=btrfs rhgb quiet i915.enable_psr=0”
GRUB_DISABLE_RECOVERY=“true”
GRUB_THEME="/boot/grub2/themes/qubes/theme.txt"
GRUB_CMDLINE_XEN_DEFAULT=“console=none dom0_mem=min:1024M dom0_mem=max:4096M ucode=scan smt=off gnttab_max_frames=2048 gnttab_max_maptrack_frames=4096”
GRUB_DISABLE_OS_PROBER=“true”
GRUB_CMDLINE_LINUX="$GRUB_CMDLINE_LINUX rd.qubes.hide_all_usb"
And this the output of cat /proc/cmdline
placeholder root=/dev/mapper/qubes_dom0-root ro rd.lvm.lv=qubes_dom0/root rd.lvm.lv=qubes_dom0/swap plymouth.ignore-serial-consoles rd.driver.pre=btrfs rhgb quiet rd.qubes.hide_all_usb
Hi @steff I moved your post into the respective thread for that machine. In this category we aim to have one thread per model so all of the relevant discussion is in one place. (/CC @fsflover … thanks!)
This topic is walked “All Around the Qubes”, hahahah
First try if the parameter is even available for your gpu:
$ modinfo i915 | grep ‘^parm:’
If yes, then try to put it after the word “consoles”.
Give us
$ sudo journalctl -g i915
After that, I’m out of ideas.
Maybe @51lieal could help.
The same model of on my laptop, I use 5.10.104-3.fc32.qubes.x86_64 qubes4.1. From time to time I get black screen, fan spins and nothing happens. I presume it can be like that forever so after a 10 min I turn it off. Sometimes next boot is correct sometimes not. It is completely random issue. I don’t have an idea how to investigate this issue. Such issue can derail any conference meeting.