注：質問の下部に私が考えることができるすべてのシステム詳細を含めました。
数週間、私はラップトップを外部画面にドッキングするとシステムが遅くなる症状を経験しました。移動するウィンドウが壊れ、両画面のビデオがフレームを落として停止し、画面の引き裂きが非常に深刻です（これは赤いニシンであり、既知の問題だと読みました）。
ドッキング時の設定：ノートパソコンの画面の無効化、縦方向の4kモニター1個、横方向の4kモニター1個。
私はglmark2を3回インストールして実行しました。 1回はドックが接続されていないノートパソコンの画面で、1回は説明された画面で、1回は画面の両方が水平モードで実行されました。全体の出力は次のとおりですが、分数は〜2000、〜250、〜2000です。
トラブルシューティングの技術はほとんど終わっていますが、これらの症状と一致する問題への良い参照が見つかりません。両方の画面が水平モードのときにglmark2ナビゲーションパスの症状が現れないため、ドックの問題のようには感じませんが、可能なドックの問題で問題を絞り込むことができる提案を受けたいです。
安定した設定を試すには、コマンド出力要求または提案を受け入れてください。私は次にどこに行くべきかわからず、ビデオドライバのブログエントリ、ディストリビューションのバグリスト、カーネルのバグリストなどを検索しましたが、役に立ちませんでした。システムが遅くならずに2番目の画面を回転できるようにしたいです。
クイックノート：glmarkテストは基本的にIntel HD 630ディスプレイドライバをターゲットにしていることがわかります。 「env DRI_PRIME = 1 glmark2」でチップを実行して別々のVega Mを強制すると、同様のスコア結果が生成されますが、垂直方向ディスプレイでは違いがあります。
システムメッセージ：
Device: Dell 9575 2-in-1 laptop
Dock: Dell TB-16
Screens: Dell U2718Q, 3840x2160, 60Hz native
inxi -Fzx
System:
Host: donatello Kernel: 4.18.20-041820-generic x86_64 bits: 64
compiler: gcc v: 8.2.0 Desktop: Cinnamon 4.0.10
Distro: Linux Mint 19.1 Tessa base: Ubuntu 18.04 bionic
Machine:
Type: Laptop System: Dell product: XPS 15 9575 v: N/A serial: <filter>
Mobo: Dell model: 0DV9HH v: A00 serial: <filter> UEFI: Dell v: 1.2.0
date: 10/10/2018
Battery:
ID-1: BAT0 charge: 72.6 Wh condition: 72.6/75.0 Wh (97%)
model: BYD DELL TMFYT8B status: Full
Device-1: hid-f4:1b:a1:34:ad:0e-battery model: Trackpad
charge: N/A status: Discharging
CPU:
Topology: Quad Core model: Intel Core i7-8706G bits: 64 type: MT MCP
arch: Kaby Lake rev: 9 L2 cache: 8192 KiB
flags: lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 49536
Speed: 800 MHz min/max: 800/4100 MHz Core speeds (MHz): 1: 800 2: 800
3: 800 4: 800 5: 800 6: 800 7: 800 8: 800
Graphics:
Device-1: Intel vendor: Dell driver: i915 v: kernel bus ID: 00:02.0
Device-2: AMD Polaris 22 [Radeon RX Vega M GL] driver: amdgpu v: kernel
bus ID: 01:00.0
Display: x11 server: X.Org 1.19.6 driver: amdgpu,ati,modesetting
unloaded: fbdev,vesa resolution: 3840x2160~60Hz, 3840x2160~60Hz
OpenGL: renderer: Mesa DRI Intel HD Graphics 630 (Kaby Lake GT2)
v: 4.5 Mesa 18.2.8 direct render: Yes
Audio:
Device-1: Intel CM238 HD Audio vendor: Dell driver: snd_hda_intel
v: kernel bus ID: 00:1f.3
Device-2: Realtek type: USB driver: snd-usb-audio bus ID: 3-1.5:4
Sound Server: ALSA v: k4.18.20-041820-generic
Network:
Device-1: Intel Wireless 8265 / 8275 driver: iwlwifi v: kernel port: e000
bus ID: 02:00.0
IF: wlp2s0 state: up mac: <filter>
Device-2: Realtek type: USB driver: r8152 bus ID: 4-1.2:4
IF: enxc8f750c5b27b state: up speed: 1000 Mbps duplex: full mac: <filter>
Drives:
Local Storage: total: 476.94 GiB used: 89.55 GiB (18.8%)
ID-1: /dev/nvme0n1 vendor: Toshiba model: KXG60ZNV512G NVMe 512GB
size: 476.94 GiB
Partition:
ID-1: / size: 467.96 GiB used: 44.77 GiB (9.6%) fs: ext4
dev: /dev/nvme0n1p2
ID-2: swap-1 size: 2.00 GiB used: 0 KiB (0.0%) fs: swap dev: /dev/dm-0
Sensors:
System Temperatures: cpu: 60.5 C mobo: N/A gpu: amdgpu temp: 51 C
Fan Speeds (RPM): N/A
Info:
Processes: 313 Uptime: 13h 13m Memory: 15.39 GiB used: 3.63 GiB (23.6%)
Init: systemd runlevel: 5 Compilers: gcc: 7.3.0 clang: 6.0.0-1ubuntu2
Shell: bash v: 4.4.19 inxi: 3.0.27
。
Laptop screen only:
=======================================================
glmark2 2014.03+git20150611.fa71af2d
=======================================================
OpenGL Information
GL_VENDOR: Intel Open Source Technology Center
GL_RENDERER: Mesa DRI Intel(R) HD Graphics 630 (Kaby Lake GT2)
GL_VERSION: 3.0 Mesa 18.2.8
=======================================================
[build] use-vbo=false: FPS: 2669 FrameTime: 0.375 ms
[build] use-vbo=true: FPS: 2763 FrameTime: 0.362 ms
[texture] texture-filter=nearest: FPS: 2893 FrameTime: 0.346 ms
[texture] texture-filter=linear: FPS: 2837 FrameTime: 0.352 ms
[texture] texture-filter=mipmap: FPS: 2775 FrameTime: 0.360 ms
[shading] shading=gouraud: FPS: 2534 FrameTime: 0.395 ms
[shading] shading=blinn-phong-inf: FPS: 2551 FrameTime: 0.392 ms
[shading] shading=phong: FPS: 2348 FrameTime: 0.426 ms
[shading] shading=cel: FPS: 2261 FrameTime: 0.442 ms
[bump] bump-render=high-poly: FPS: 1742 FrameTime: 0.574 ms
[bump] bump-render=normals: FPS: 2947 FrameTime: 0.339 ms
[bump] bump-render=height: FPS: 2849 FrameTime: 0.351 ms
[effect2d] kernel=0,1,0;1,-4,1;0,1,0;: FPS: 1738 FrameTime: 0.575 ms
[effect2d] kernel=1,1,1,1,1;1,1,1,1,1;1,1,1,1,1;: FPS: 1117 FrameTime: 0.895 ms
[pulsar] light=false:quads=5:texture=false: FPS: 2562 FrameTime: 0.390 ms
[desktop] blur-radius=5:effect=blur:passes=1:separable=true:windows=4: FPS: 1066 FrameTime: 0.938 ms
[desktop] effect=shadow:windows=4: FPS: 1609 FrameTime: 0.622 ms
[buffer] columns=200:interleave=false:update-dispersion=0.9:update-fraction=0.5:update-method=map: FPS: 891 FrameTime: 1.122 ms
[buffer] columns=200:interleave=false:update-dispersion=0.9:update-fraction=0.5:update-method=subdata: FPS: 858 FrameTime: 1.166 ms
[buffer] columns=200:interleave=true:update-dispersion=0.9:update-fraction=0.5:update-method=map: FPS: 980 FrameTime: 1.020 ms
[ideas] speed=duration: FPS: 2073 FrameTime: 0.482 ms
[jellyfish] <default>: FPS: 2044 FrameTime: 0.489 ms
[terrain] <default>: FPS: 249 FrameTime: 4.016 ms
[shadow] <default>: FPS: 2013 FrameTime: 0.497 ms
[refract] <default>: FPS: 591 FrameTime: 1.692 ms
[conditionals] fragment-steps=0:vertex-steps=0: FPS: 2748 FrameTime: 0.364 ms
[conditionals] fragment-steps=5:vertex-steps=0: FPS: 2606 FrameTime: 0.384 ms
[conditionals] fragment-steps=0:vertex-steps=5: FPS: 2777 FrameTime: 0.360 ms
[function] fragment-complexity=low:fragment-steps=5: FPS: 2784 FrameTime: 0.359 ms
[function] fragment-complexity=medium:fragment-steps=5: FPS: 2837 FrameTime: 0.352 ms
[loop] fragment-loop=false:fragment-steps=5:vertex-steps=5: FPS: 2839 FrameTime: 0.352 ms
[loop] fragment-steps=5:fragment-uniform=false:vertex-steps=5: FPS: 2794 FrameTime: 0.358 ms
[loop] fragment-steps=5:fragment-uniform=true:vertex-steps=5: FPS: 2682 FrameTime: 0.373 ms
=======================================================
glmark2 Score: 2152
=======================================================
。
External Screens, both horizontal orientation
=======================================================
glmark2 2014.03+git20150611.fa71af2d
=======================================================
OpenGL Information
GL_VENDOR: Intel Open Source Technology Center
GL_RENDERER: Mesa DRI Intel(R) HD Graphics 630 (Kaby Lake GT2)
GL_VERSION: 3.0 Mesa 18.2.8
=======================================================
[build] use-vbo=false: FPS: 3246 FrameTime: 0.308 ms
[build] use-vbo=true: FPS: 3523 FrameTime: 0.284 ms
[texture] texture-filter=nearest: FPS: 3227 FrameTime: 0.310 ms
[texture] texture-filter=linear: FPS: 3244 FrameTime: 0.308 ms
[texture] texture-filter=mipmap: FPS: 3205 FrameTime: 0.312 ms
[shading] shading=gouraud: FPS: 2778 FrameTime: 0.360 ms
[shading] shading=blinn-phong-inf: FPS: 2846 FrameTime: 0.351 ms
[shading] shading=phong: FPS: 2566 FrameTime: 0.390 ms
[shading] shading=cel: FPS: 2585 FrameTime: 0.387 ms
[bump] bump-render=high-poly: FPS: 1874 FrameTime: 0.534 ms
[bump] bump-render=normals: FPS: 3372 FrameTime: 0.297 ms
[bump] bump-render=height: FPS: 3194 FrameTime: 0.313 ms
[effect2d] kernel=0,1,0;1,-4,1;0,1,0;: FPS: 1829 FrameTime: 0.547 ms
[effect2d] kernel=1,1,1,1,1;1,1,1,1,1;1,1,1,1,1;: FPS: 1128 FrameTime: 0.887 ms
[pulsar] light=false:quads=5:texture=false: FPS: 2754 FrameTime: 0.363 ms
[desktop] blur-radius=5:effect=blur:passes=1:separable=true:windows=4: FPS: 1082 FrameTime: 0.924 ms
[desktop] effect=shadow:windows=4: FPS: 1781 FrameTime: 0.561 ms
[buffer] columns=200:interleave=false:update-dispersion=0.9:update-fraction=0.5:update-method=map: FPS: 1007 FrameTime: 0.993 ms
[buffer] columns=200:interleave=false:update-dispersion=0.9:update-fraction=0.5:update-method=subdata: FPS: 482 FrameTime: 2.075 ms
[buffer] columns=200:interleave=true:update-dispersion=0.9:update-fraction=0.5:update-method=map: FPS: 642 FrameTime: 1.558 ms
[ideas] speed=duration: FPS: 664 FrameTime: 1.506 ms
[jellyfish] <default>: FPS: 1929 FrameTime: 0.518 ms
[terrain] <default>: FPS: 226 FrameTime: 4.425 ms
[shadow] <default>: FPS: 1759 FrameTime: 0.569 ms
[refract] <default>: FPS: 371 FrameTime: 2.695 ms
[conditionals] fragment-steps=0:vertex-steps=0: FPS: 2127 FrameTime: 0.470 ms
[conditionals] fragment-steps=5:vertex-steps=0: FPS: 2527 FrameTime: 0.396 ms
[conditionals] fragment-steps=0:vertex-steps=5: FPS: 2727 FrameTime: 0.367 ms
[function] fragment-complexity=low:fragment-steps=5: FPS: 2402 FrameTime: 0.416 ms
[function] fragment-complexity=medium:fragment-steps=5: FPS: 2642 FrameTime: 0.379 ms
[loop] fragment-loop=false:fragment-steps=5:vertex-steps=5: FPS: 2675 FrameTime: 0.374 ms
[loop] fragment-steps=5:fragment-uniform=false:vertex-steps=5: FPS: 2280 FrameTime: 0.439 ms
[loop] fragment-steps=5:fragment-uniform=true:vertex-steps=5: FPS: 1708 FrameTime: 0.585 ms
=======================================================
glmark2 Score: 2133
=======================================================
。
External Screens, one horizontal, one vertical orientation
=======================================================
glmark2 2014.03+git20150611.fa71af2d
=======================================================
OpenGL Information
GL_VENDOR: Intel Open Source Technology Center
GL_RENDERER: Mesa DRI Intel(R) HD Graphics 630 (Kaby Lake GT2)
GL_VERSION: 3.0 Mesa 18.2.8
=======================================================
[build] use-vbo=false: FPS: 248 FrameTime: 4.032 ms
[build] use-vbo=true: FPS: 351 FrameTime: 2.849 ms
[texture] texture-filter=nearest: FPS: 315 FrameTime: 3.175 ms
[texture] texture-filter=linear: FPS: 332 FrameTime: 3.012 ms
[texture] texture-filter=mipmap: FPS: 333 FrameTime: 3.003 ms
[shading] shading=gouraud: FPS: 293 FrameTime: 3.413 ms
[shading] shading=blinn-phong-inf: FPS: 311 FrameTime: 3.215 ms
[shading] shading=phong: FPS: 286 FrameTime: 3.497 ms
[shading] shading=cel: FPS: 266 FrameTime: 3.759 ms
[bump] bump-render=high-poly: FPS: 229 FrameTime: 4.367 ms
[bump] bump-render=normals: FPS: 344 FrameTime: 2.907 ms
[bump] bump-render=height: FPS: 319 FrameTime: 3.135 ms
[effect2d] kernel=0,1,0;1,-4,1;0,1,0;: FPS: 234 FrameTime: 4.274 ms
[effect2d] kernel=1,1,1,1,1;1,1,1,1,1;1,1,1,1,1;: FPS: 139 FrameTime: 7.194 ms
[pulsar] light=false:quads=5:texture=false: FPS: 287 FrameTime: 3.484 ms
[desktop] blur-radius=5:effect=blur:passes=1:separable=true:windows=4: FPS: 134 FrameTime: 7.463 ms
[desktop] effect=shadow:windows=4: FPS: 202 FrameTime: 4.950 ms
[buffer] columns=200:interleave=false:update-dispersion=0.9:update-fraction=0.5:update-method=map: FPS: 57 FrameTime: 17.544 ms
[buffer] columns=200:interleave=false:update-dispersion=0.9:update-fraction=0.5:update-method=subdata: FPS: 102 FrameTime: 9.804 ms
[buffer] columns=200:interleave=true:update-dispersion=0.9:update-fraction=0.5:update-method=map: FPS: 60 FrameTime: 16.667 ms
[ideas] speed=duration: FPS: 179 FrameTime: 5.587 ms
[jellyfish] <default>: FPS: 227 FrameTime: 4.405 ms
[terrain] <default>: FPS: 67 FrameTime: 14.925 ms
[shadow] <default>: FPS: 224 FrameTime: 4.464 ms
[refract] <default>: FPS: 79 FrameTime: 12.658 ms
[conditionals] fragment-steps=0:vertex-steps=0: FPS: 271 FrameTime: 3.690 ms
[conditionals] fragment-steps=5:vertex-steps=0: FPS: 263 FrameTime: 3.802 ms
[conditionals] fragment-steps=0:vertex-steps=5: FPS: 271 FrameTime: 3.690 ms
[function] fragment-complexity=low:fragment-steps=5: FPS: 275 FrameTime: 3.636 ms
[function] fragment-complexity=medium:fragment-steps=5: FPS: 265 FrameTime: 3.774 ms
[loop] fragment-loop=false:fragment-steps=5:vertex-steps=5: FPS: 277 FrameTime: 3.610 ms
[loop] fragment-steps=5:fragment-uniform=false:vertex-steps=5: FPS: 271 FrameTime: 3.690 ms
[loop] fragment-steps=5:fragment-uniform=true:vertex-steps=5: FPS: 273 FrameTime: 3.663 ms
=======================================================
glmark2 Score: 235
=======================================================