Various cursor issues with cpu_buffer (size, transform, position)

[itouchdennis]

Already reported ? *

• I have searched the existing open and closed issues.

Regression?

Definitely a regression - something broke after update (requires bisect)

System Info and Hyprland Version

System/Version info

Hyprland 0.46.0 built from branch main at commit 983bc067dac2e737bc724721c79d87cd81f27501  (opengl: fix crash on null fb stencil op).
Date: Wed Jan 8 12:34:43 2025
Tag: v0.46.0-95-g983bc067, commits: 5650
built against:
 aquamarine 0.6.0
 hyprlang 0.6.0
 hyprutils 0.3.3
 hyprcursor 0.1.11
 hyprgraphics 0.1.1


no flags were set


System Information:
System name: Linux
Node name: datesli-ms7d25
Release: 6.12.8-zen1-1-zen
Version: #1 ZEN SMP PREEMPT_DYNAMIC Thu, 02 Jan 2025 22:52:21 +0000


GPU information: 
00:02.0 Display controller [0380]: Intel Corporation AlderLake-S GT1 [8086:4680] (rev 0c)
01:00.0 VGA compatible controller [0300]: NVIDIA Corporation GA104 [GeForce RTX 3070 Ti] [10de:2482] (rev a1) (prog-if 00 [VGA controller])
NVRM version: NVIDIA UNIX Open Kernel Module for x86_64  565.77  Release Build  (archlinux-builder@datesli-ms7d25)  


os-release: NAME="EndeavourOS"
PRETTY_NAME="EndeavourOS"
ID="endeavouros"
ID_LIKE="arch"
BUILD_ID="2023.11.17"
ANSI_COLOR="38;2;23;147;209"
HOME_URL="https://endeavouros.com"
DOCUMENTATION_URL="https://discovery.endeavouros.com"
SUPPORT_URL="https://forum.endeavouros.com"
BUG_REPORT_URL="https://forum.endeavouros.com/c/general-system/endeavouros-installation"
PRIVACY_POLICY_URL="https://endeavouros.com/privacy-policy-2"
LOGO="endeavouros"


plugins:

Description

I use a 2. display tilted on top of my main display, usually its working with this settings:

hyprctl keyword monitor HDMI-A-1, 1920x1080@144,830x-1080, 1,transform,2

I didn't updated the system since last Wednesday, came back updated all to the newest version and now the cursor is not tilted anymore and also not really working on the flipped monitor.
The mouse won't click and has also an inaccessible area on the "top" of the screen.

I have a Nvidia Card, tried to enable / disable HW cursors, but this seems not to fix the issue.

How to reproduce

1. Start Hyprland
2. Flip screen
3. Setup a display with transform, 2 (hyprctl keyword monitor HDMI-A-1, 1920x1080@144,830x-1080, 1,transform,2)
4. Move mouse to the 2. display and see the wrong mouse tilt.

Attach not paste

• I understand that all text files must be attached, and not pasted directly. If not respected, this issue will likely get closed as spam

Checklist of files to include below

• Hyprland config - hyprctl systeminfo -c (always include)
• Crash report (always include in case of crash)
• Video (always include in case of a visual bug)
• Logs (might contain useful info such as errors)

Additional info & File uploads

Screenshot

###########
Systeminfo -c

https://pastebin.pl/view/1542bcd6

[jacobrreed]

• seeing same issue, on my vertical monitor my hyprcursor is rotated 90 degrees
• also my ENV to set hyprcursor seems to not work on start, the cursor looks like a glitchy block but if I set it via hyprcursor setcursor with the same variables it works fine after
• possibly related, on my vertical monitor I can't move the cursor past the left 20% of the monitor, like an invisible wall

[itouchdennis]

I switched back to the version I used before via git checkout f3c49c1

And rebuild it from source, here everything is working. Might also work in newer versions, but the newest once is definitely kinda weird, at least with my setup + tilted screen.

[UjinT34]

cursor:no_hardware_cursors = 1 it default now to use cursor:use_cpu_buffer on nvidia and that doesn't support rotations.

https://drmdb.emersion.fr/properties/4008636142/rotation might not be supported for the cursor plane so the texture copy itself should be rotated.

[jacobrreed]

ya setting

cursor {
  no_hardware_cursors = true
}

fixes the problem introduced in b320bc2dc6e308360936ce4396010359b74558bf

[vaxerski]

hm, we should just fix the rendering, probably. CPU rotating wohoo that's gonna be fast...

[vaxerski]

is it in the correct place though? Can't test, obviously, I dont use green gpus

[vaxerski]

patch.txt
try ths

[jacobrreed]

is it in the correct place though? Can't test, obviously, I dont use green gpus

It's in the correct place, but on rotated monitors its not rotated. i.e a monitor rotated 90 degrees, the cursor is also rotated 90degrees so its sideways
Maybe unrelated but with the above config works, if no_hardware_cursors=false or is not set, hyprcursor graphic is very glitchy looking and pixelated

[jacobrreed]

patch.txt try ths

testing now, uno momento

[jacobrreed]

@vaxerski Ya this fixes hyprcursor rotation for me

Probably a separate issue but not sure why but my cursor is glitchy looking and im using

# Hyprcursor
env = HYPRCURSOR_THEME,Dracula-cursors
env = HYPRCURSOR_SIZE,24

in my config, on launch its messed up
but if I run hyprctl setcursor Dracula-cursors 24 its not glitchy anymore

Even with the above patch given though, I still cant move my mouse to the first like 20-30% of the rotated monitor, like an invisible wall is present

again, setting no_hardware_cursor = true fixes that issue

[UjinT34]

Nvidia's buffer is 256x256 and the cursor is in the wrong corner of that buffer.

[vaxerski]

yep thats what I thought. That's why I asked if it's in the right place LOL

[jacobrreed]

Ohhh, I guess that maybe explains it lol

[itouchdennis]

Can confirm, no_hardware_cursor = true mitigates the issue, the patch allows the cursor to be aligned correctly when no_hardware_cursor = false but as mentioned like 20% of the screen aren't reachable anymore.

[vaxerski]

patch.txt
how about this?

[itouchdennis]

Not sure if its my setup, but after the newest patch on the newest commit I'll get Error 2 on make all && sudo make install

https://pastebin.com/bFJHBDrz

[vaxerski]

you truncated the output, please post the entire thing

[LongLeCE]

@itouchdennis have you tried setting no_hardware_cursors = false and use_cpu_buffer = 0? I have an nvidia card and it works fine. Not sure why the wiki said use_cpu_buffer is required for nvidia.

[UjinT34]

@itouchdennis have you tried setting no_hardware_cursors = false and use_cpu_buffer = 0? I have an nvidia card and it works fine. Not sure why the wiki said use_cpu_buffer is required for nvidia.

It falls back to sw automatically without use_cpu_buffer

[itouchdennis]

you truncated the output, please post the entire thing

Here is the complete output:
https://pastebin.com/AXjbCpHz

[itouchdennis]

use_cpu_buffer

This setting "fixes" the tilted cursor and gives me back the 20% of inaccessible space, but feels like a 5 FPS diashow at my setup, if I set 1 or 2 its fine:

cursor {
no_hardware_cursors = false
use_cpu_buffer = 0
}

I rather have no_hardware_cursors = true for now

[vaxerski]

Unifying this issue. Will be fixed by rewriting the texture handling to use cairo, instead of a janky memcpy calculator

[vaxerski]

I will probably do it in a week or two, if anyone wants to take a stab at it before me feel free.