这在代码编辑器中尤其明显，因为代码编辑器中重绘的次数比平常要多。但在网络浏览器中导航和滚动时也会出现延迟。滚动似乎也会延迟。所以……不确定那里发生了什么。
我甚至不知道从哪儿开始。
以下是一些系统信息：
Graphics Card(s):
01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Venus XT [Radeon HD 8870M / R9 M270X/M370X] (rev 83)
Connected Monitors:
[ 20.895] (II) RADEON(0): Output eDP connected
[ 20.895] (II) RADEON(0): Output DisplayPort-1 connected
Current Video Driver:
drm_kms_helper 151552 2 amdgpu,radeon
syscopyarea 16384 1 drm_kms_helper
sysfillrect 16384 1 drm_kms_helper
sysimgblt 16384 1 drm_kms_helper
fb_sys_fops 16384 1 drm_kms_helper
drm 352256 7 amdgpu,radeon,ttm,drm_kms_helper
Video Output Locations:
find: ‘/dev/vboxusb’: Permission denied
/dev/fb0
/dev/dri/card0
/dev/dri/renderD128
Grub boot command:
BOOT_IMAGE=/boot/vmlinuz-4.10.0-27-generic.efi.signed root=UUID=318b46d7-0efc-4fed-a30f-0c7406e13352 ro quiet splash acpi_backlight=vendor vt.handoff=7
modprobe.d drivers:
/etc/modprobe.d/
/etc/modprobe.d/iwlwifi.conf
/etc/modprobe.d/mlx4.conf
/etc/modprobe.d/blacklist-firewire.conf
/etc/modprobe.d/blacklist-framebuffer.conf
/etc/modprobe.d/blacklist-oss.conf
/etc/modprobe.d/blacklist-rare-network.conf
/etc/modprobe.d/qemu-system-x86.conf
/etc/modprobe.d/blacklist.conf
/etc/modprobe.d/blacklist-modem.conf
/etc/modprobe.d/alsa-base.conf
/etc/modprobe.d/intel-microcode-blacklist.conf
/etc/modprobe.d/blacklist-ath_pci.conf
/etc/modprobe.d/blacklist-watchdog.conf
/etc/modprobe.d/vmwgfx-fbdev.conf
/etc/modprobe.d/fbdev-blacklist.conf
Do we have a xorg.conf file?
ls: cannot access '/etc/X11/xorg.conf': No such file or directory
glxinfo:
/home/me/scripts/system-utils/graphics-info: line 25: glxinfo: command not found
Drivers loaded by Xorg:
[ 20.463] (II) LoadModule: "glx"
[ 20.477] (II) LoadModule: "ati"
[ 20.479] (II) LoadModule: "radeon"
[ 20.482] (II) LoadModule: "modesetting"
[ 20.484] (II) LoadModule: "fbdev"
[ 20.485] (II) LoadModule: "vesa"
[ 20.501] (II) LoadModule: "fbdevhw"
[ 20.504] (II) LoadModule: "fb"
[ 20.507] (II) LoadModule: "dri2"
[ 20.507] (II) LoadModule: "glamoregl"
[ 20.895] (II) LoadModule: "ramdac"
[ 21.628] (II) LoadModule: "evdev"
[ 21.791] (II) LoadModule: "synaptics"
以上输出来自：
#!/bin/bash
echo -e "\n\e[01;33mGraphics Card(s): \e[00m";
lspci | grep VGA;
echo -e "\n\e[01;33mConnected Monitors: \e[00m";
egrep -i " connected|card detect|primary dev" /var/log/Xorg.0.log;
echo -e "\n\e[01;33mCurrent Video Driver: \e[00m";
lsmod | grep "kms\|drm";
echo -e "\n\e[01;33mVideo Output Locations: \e[00m";
find /dev -group video;
echo -e "\n\e[01;33mGrub boot command: \e[00m";
cat /proc/cmdline;
echo -e "\n\e[01;33mmodprobe.d drivers: \e[00m";
find /etc/modprobe.d/;
echo -e "\n\e[01;33mDo we have a xorg.conf file?\e[00m";
ls /etc/X11/xorg.conf;
echo -e "\n\e[01;33mglxinfo: \e[00m";
glxinfo | grep -i "vendor\|rendering";
echo -e "\n\e[01;33mDrivers loaded by Xorg: \e[00m";
grep LoadModule /var/log/Xorg.0.log;
还：
$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 16.04.2 LTS
Release: 16.04
Codename: xenial
$ uname -a
Linux macbuntu 4.10.0-27-generic #30~16.04.2-Ubuntu SMP Thu Jun 29 16:07:46 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
sudo dmidecode 的输出：
http://text-share.com/view/00d1973f
任何帮助都将非常感激:-)
更新lspci -v 的输出（但只是 VGA 的片段）
01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Venus XT [Radeon HD 8870M / R9 M270X/M370X] (rev 83) (prog-if 00 [VGA controller])
Subsystem: Apple Inc. Radeon R9 M370X Mac Edition
Flags: bus master, fast devsel, latency 0, IRQ 37
Memory at 80000000 (64-bit, prefetchable) [size=256M]
Memory at b0c00000 (64-bit, non-prefetchable) [size=256K]
I/O ports at 3000 [size=256]
Expansion ROM at b0c40000 [disabled] [size=128K]
Capabilities: <access denied>
Kernel driver in use: radeon
Kernel modules: radeon, amdgpu