bugGNU GRUB - Bugs: bug #61190, Vary slow rendering speen with...


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bug #61190: Vary slow rendering speen with HiDPI screen

Submitted by:  Yu ShenHang <sky96111>
Submitted on:  Sun 19 Sep 2021 02:28:27 PM UTC  
Category:  User Interface Severity:  Major
Priority:  5 - Normal Item Group:  Hardware-specific
Status:  None Privacy:  Public
Assigned to:  None Originator Name: 
Open/Closed:  Open Release: 
Release:  2.02~rc1 Reproducibility:  Every Time
Planned Release:  None

Sun 19 Sep 2021 02:28:27 PM UTC, original submission:  

1. Link a high resolution screen
2. Install GRUB and config GRUB_GFXMODE=3840x2160 to fit screen resolution
3. remake grub.cfg

what it should be:
GUI rendering and system selection should be immediately respond

what actually be:
In my two devices, GRUB renders very slow and lags. After OEM logo disappear, it almost take 4 seconds to finish rendering first GUI scene. And after finishing rendering, every key pressed (Arr up, arr down, enter) lagged for 1 second to respond, I even cannot select correct system.

If I config GRUB_GFXMODE to 1080p, the problem will disappear, but the clarity of the windows and linux startup interface will decrease.

It seems other person with certain hardware are facing the same problem.

device1 info:
Arch Linux
GRUB 2.06-2
3840x2160 screen
AMD Ryzen 1700 CPU

device2 info:
Fedora 34 Or Arch Linux
GRUB 2.02 Or 2.06-2
2736x1824 screen
Mesa Intel Iris(R) Plus Graphics(ICL GT2) GPU
Intel i7-1065G7 CPU

Yu ShenHang <sky96111>


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    Date Changed by Updated Field Previous Value => Replaced by
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