This issue is known on 5.12 and should be fixed in 5.13 (see comments around line 1405 in on xscreensaver-5.14/driver/xscreensaver.c)
This issue is known on 5.12 and should be fixed in 5.13 (see comments around line 1405 in on xscreensaver- 5.14/driver/ xscreensaver. c)