https://bugs.kde.org/show_bug.cgi?id=504552
Bug ID: 504552
Summary: Pressure Maxes Out at 47.4% with XP-Pen Artist 16 2nd
Gen
Classification: Applications
Product: krita
Version First 5.2.9
Reported In:
Platform: Ubuntu
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Tablets (tablet issues are only very rarely bugs in
Krita!)
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
Created attachment 181549
--> https://bugs.kde.org/attachment.cgi?id=181549&action=edit
Results of Steps to Reproduce
SUMMARY
STEPS TO REPRODUCE
1. Set up tablet (physical hookup, launch driver, etc)
2. Open krita
3. Select a brush with opacity controlled by pen pressure (i.e. Basic-2
Opacity)
4. Paint with the brush at full pressure
OBSERVED RESULT
The brush stroke never reaches full black. It caps out at ~50% gray at full pen
pressure
EXPECTED RESULT
The opacity of the stroke should be fully opaque at full pen pressure
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Ubuntu 20.04.6 LTS
Krita Version: 5.2.9 (installed via snap)
XP-Pen Driver Version: 4.0.7 (7c4a501)
ADDITIONAL INFORMATION
The Artist 16 is listed as "supposed to work" on the [List of Supported
Tablets](https://docs.krita.org/en/reference_manual/list_supported_tablets.html#list-supported-tablets)
Tablet has 8191 levels of pressure sensitivity
I opened `Settings > Configure Krita > Tablet Settings > Open Tablet Tester`
and was able to see that the pressure input was getting clipped at 47.4%
(pressure level 3882)
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