deepin@deepin:~$ apt-cache policy dde-printer
dde-printer:
  已安装：0.7.3-1
  候选： 0.7.3-1
  版本列表：

暂时没有遇到

终端执行下dde-printer命令操作后看看日志显示

你好，我执行该命令会弹出打印管理器，然后瞬间闪退了，好奇怪。

有个log文件发下日志

2020-12-23, 14:25:05.120 [Info ] [jobmanagerwindow.cpp JobsDataModel::slotRefreshJobsList 856] 1
2020-12-23, 14:25:05.121 [Info ] [zjobmanager.cpp JobManager::getJobs 75] Got jobs count: 1
2020-12-23, 14:25:05.123 [Info ] [jobmanagerwindow.cpp JobManagerWindow::slotJobsCountChanged 1150] 1
2020-12-23, 14:25:05.123 [Info ] [jobmanagerwindow.cpp JobsDataModel::slotRefreshJobItems 848] Current highest priorty 50
2020-12-23, 14:25:22.041 [Info ] [jobmanagerwindow.cpp JobsDataModel::updateJobState 748] 5 1
2020-12-23, 14:25:22.041 [Info ] [jobmanagerwindow.cpp JobsDataModel::setJobAttributes 612] "(5, 50) -> (5, 50)"
2020-12-23, 14:25:34.057 [Info ] [jobmanagerwindow.cpp JobsDataModel::updateJobState 748] 5 1
2020-12-23, 14:25:34.059 [Info ] [jobmanagerwindow.cpp JobsDataModel::deleteJobItem 575] 6
2020-12-23, 14:25:34.164 [Info ] [jobmanagerwindow.cpp JobManagerWindow::slotJobsCountChanged 1150] 0
2020-12-23, 14:25:34.164 [Info ] [jobmanagerwindow.cpp JobsDataModel::slotRefreshJobItems 848] Current highest priorty 50
2020-12-23, 14:26:39.512 [Info ] [jobmanagerwindow.cpp JobsDataModel::slotRefreshJobsList 856] 0
2020-12-23, 14:26:39.513 [Info ] [zjobmanager.cpp JobManager::getJobs 75] Got jobs count: 4
2020-12-23, 14:26:39.515 [Info ] [jobmanagerwindow.cpp JobManagerWindow::slotJobsCountChanged 1150] 4
2020-12-23, 14:26:39.515 [Info ] [jobmanagerwindow.cpp JobsDataModel::slotRefreshJobItems 848] Current highest priorty 50
2020-12-23, 14:26:44.297 [Info ] [zdrivermanager.cpp DriverManager::stop 705] Clear local driver dirct
2020-12-23, 14:26:48.695 [Info ] [printerapplication.cpp PrinterApplication::create 107] save log to: "/home/shouqianba/.cache/deepin/dde-printer/dde-printer.log"
2020-12-23, 14:26:48.721 [Warning] [ 0] QWidget::setLayout: Cannot set layout to 0
2020-12-23, 14:26:48.721 [Info ] [zdrivermanager.cpp DriverManager::refreshPpds 736]
2020-12-23, 14:26:48.721 [Info ] [ztaskinterface.cpp TaskInterface::run 80] Task Init ppds running...
2020-12-23, 14:44:48.518 [Info ] [printerapplication.cpp PrinterApplication::create 107] save log to: "/home/shouqianba/.cache/deepin/dde-printer/dde-printer.log"
2020-12-23, 14:44:48.545 [Warning] [ 0] QWidget::setLayout: Cannot set layout to 0
2020-12-23, 14:44:48.546 [Info ] [zdrivermanager.cpp DriverManager::refreshPpds 736]
2020-12-23, 14:44:48.546 [Info ] [ztaskinterface.cpp TaskInterface::run 80] Task Init ppds running...
2020-12-23, 16:48:31.226 [Info ] [printerapplication.cpp PrinterApplication::create 107] save log to: "/home/shouqianba/.cache/deepin/dde-printer/dde-printer.log"
2020-12-23, 16:48:31.254 [Warning] [ 0] QWidget::setLayout: Cannot set layout to 0
2020-12-23, 16:48:31.254 [Info ] [zdrivermanager.cpp DriverManager::refreshPpds 736]
2020-12-23, 16:48:31.254 [Info ] [ztaskinterface.cpp TaskInterface::run 80] Task Init ppds running...
2020-12-23, 17:36:47.618 [Info ] [printerapplication.cpp PrinterApplication::create 107] save log to: "/home/shouqianba/.cache/deepin/dde-printer/dde-printer.log"
2020-12-23, 17:36:47.644 [Warning] [ 0] QWidget::setLayout: Cannot set layout to 0
2020-12-23, 17:36:47.644 [Info ] [zdrivermanager.cpp DriverManager::refreshPpds 736]
2020-12-23, 17:36:47.646 [Info ] [ztaskinterface.cpp TaskInterface::run 80] Task Init ppds running...

我通过访问http://localhost:631，删除所安装的打印机后，打印管理器就恢复正常了。麻烦有人知道吗？！谢谢