ubuntu画面延迟问题解决
新配的电脑,安装ubuntu16.04以后,出现画面延迟的问题,尤其浏览网页的时候画面十分卡顿。用free命令查看过可用内存6.多G,经过询问大概是显卡问题,然后在https://ubuntuforums.org/showthread.php?t=2377324 找到了答案,尝试了两种方法:
方法一:
Here is the solution for anyone that wants to run Ubuntu on CoffeeLake integrated graphics:
Make sure you're running Ubuntu 17.10 and everything is updated.
Install the latest video drivers:
Code:
sudo add-apt-repository ppa:oibaf/graphics-drivers sudo apt-get update
Update the kernel parameter. I used Grub Customizer to do it:
Code:
sudo add-apt-repository ppa:danielrichter2007/grub-customizer sudo apt update sudo apt install grub-customizer
Launch grub customizer, go to the General tab, and enter i915.alpha_support=1 under Kernel Parameters.
Reboot.
方法二:
I didn't add the oibaf repository and have successfully got 4K output by just editing /etc/default/grub, changing the line
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
to
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash i915.alpha_support=1"
Then run 'sudo update-grub'
and reboot.
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