https://h30471.www3.hp.com/t5/bi-ji-ben-dian-nao/win-10sheng-ji-hou-F3-F4-shi-xiao/m-p/1195068#M454266 <P>ELITEBOOK 745 G5&nbsp; &nbsp;win 10自动 升级后 F3-F4 失效&nbsp; &nbsp; 屏幕亮度无法调节&nbsp;</P> Mon, 24 Oct 2022 09:10:09 GMT GERRYGAN 2022-10-24T09:10:09Z https://h30471.www3.hp.com/t5/bi-ji-ben-dian-nao/win-10sheng-ji-hou-F3-F4-shi-xiao/m-p/1195068#M454266 <P>ELITEBOOK 745 G5&nbsp; &nbsp;win 10自动 升级后 F3-F4 失效&nbsp; &nbsp; 屏幕亮度无法调节&nbsp;</P> Mon, 24 Oct 2022 09:10:09 GMT https://h30471.www3.hp.com/t5/bi-ji-ben-dian-nao/win-10sheng-ji-hou-F3-F4-shi-xiao/m-p/1195068#M454266 GERRYGAN 2022-10-24T09:10:09Z https://h30471.www3.hp.com/t5/bi-ji-ben-dian-nao/win-10sheng-ji-hou-F3-F4-shi-xiao/m-p/1195075#M454268 <P>先看操作系统版本是不是低版本，低版本要先升级高版本或者直接重新安装高版本</P> <P>&nbsp;</P> <P>运行输入winver</P> Mon, 24 Oct 2022 09:23:46 GMT https://h30471.www3.hp.com/t5/bi-ji-ben-dian-nao/win-10sheng-ji-hou-F3-F4-shi-xiao/m-p/1195075#M454268 y2kim 2022-10-24T09:23:46Z https://h30471.www3.hp.com/t5/bi-ji-ben-dian-nao/win-10sheng-ji-hou-F3-F4-shi-xiao/m-p/1195082#M454270 <P>版本 22H2 内部版本 19045.2130&nbsp;&nbsp;</P> Mon, 24 Oct 2022 09:30:23 GMT https://h30471.www3.hp.com/t5/bi-ji-ben-dian-nao/win-10sheng-ji-hou-F3-F4-shi-xiao/m-p/1195082#M454270 GERRYGAN 2022-10-24T09:30:23Z https://h30471.www3.hp.com/t5/bi-ji-ben-dian-nao/win-10sheng-ji-hou-F3-F4-shi-xiao/m-p/1195085#M454271 <P>失效后无法调节 显示器亮度，亮度非常高</P> Mon, 24 Oct 2022 09:34:08 GMT https://h30471.www3.hp.com/t5/bi-ji-ben-dian-nao/win-10sheng-ji-hou-F3-F4-shi-xiao/m-p/1195085#M454271 GERRYGAN 2022-10-24T09:34:08Z https://h30471.www3.hp.com/t5/bi-ji-ben-dian-nao/win-10sheng-ji-hou-F3-F4-shi-xiao/m-p/1195088#M454272 <P>19045版本也太新了，适配驱动没那么快出。用19044的驱动试。</P> <P>或者回退19044系统。</P> <P><A href="https://support.hp.com/cn-zh/drivers/selfservice/hp-elitebook-745-g5-notebook-pc/18819802" target="_blank">HP EliteBook 745 G5笔记本电脑 软件和驱动下载 | 惠普®客户支持</A></P> Mon, 24 Oct 2022 10:14:09 GMT https://h30471.www3.hp.com/t5/bi-ji-ben-dian-nao/win-10sheng-ji-hou-F3-F4-shi-xiao/m-p/1195088#M454272 y2kim 2022-10-24T10:14:09Z