[SOLVED] Display flickering / Newbie Corner / Arch Linux Forums

#[SOLVED] Display flickering / Newbie Corner / Arch Linux Forums| 来源: 网络整理| 查看: 265

Hello.Recently I've installed fresh Arch with my old display(23'1920x1080) and GPU. Then I connected a new display(27'2560x1440) and GPU(radeon rx550). First boot(2560x1440) with new display and I have an issue with 'flickering'(mostly when using keyboard). I also tested on Windows and it works fine.After some research I've found xrandr. Setting some specific resolutions(1920x1200 doesn't work), for example 1920x1080 and back to 2560x1440(xrandr --output DisplayPort-0 --primary --mode 2560x1440 --pos 0x0 --rotate normal --output DVI-D-0 --off --output HDMI-A-0 --off) solved the problem until next reboot or 'monitor sleep'.

GPU driver - "amdgpu"I'm using i3wm and compton. Without running "compton" issues also can be reproduced.

Xorg.log

Output of "xdpyinfo | grep -B5 -A10 resolution" after boot(before running xrandr):

screen #0: dimensions: 2560x1440 pixels (675x380 millimeters) resolution: 96x96 dots per inch depths (7): 24, 1, 4, 8, 15, 16, 32 root window id: 0x6c7 depth of root window: 24 planes number of colormaps: minimum 1, maximum 1 default colormap: 0x20 default number of colormap cells: 256 preallocated pixels: black 0, white 16777215 options: backing-store WHEN MAPPED, save-unders NO largest cursor: 128x128 current input event mask: 0x7a8077

Output of "xdpyinfo | grep -B5 -A10 resolution" after running xrandr:

screen #0: dimensions: 2560x1440 pixels (677x381 millimeters) resolution: 96x96 dots per inch depths (7): 24, 1, 4, 8, 15, 16, 32 root window id: 0x6c7 depth of root window: 24 planes number of colormaps: minimum 1, maximum 1 default colormap: 0x20 default number of colormap cells: 256 preallocated pixels: black 0, white 16777215 options: backing-store WHEN MAPPED, save-unders NO largest cursor: 128x128 current input event mask: 0x7a8077

The only difference is dimensions field(physical size in mm).

Output of "xrandr"

Screen 0: minimum 320 x 200, current 2560 x 1440, maximum 16384 x 16384 DisplayPort-0 connected primary 2560x1440+0+0 (normal left inverted right x axis y axis) 597mm x 336mm 2560x1440 74.97*+ 59.95 1920x1200 74.97 1920x1080 60.00 60.00 50.00 59.94 30.00 29.97 1600x1200 74.97 1680x1050 59.95 1280x1024 75.02 60.02 1440x900 59.89 1280x960 60.00 1280x800 74.97 1152x864 75.00 1280x720 60.00 50.00 59.94 1024x768 75.03 70.07 60.00 832x624 74.55 800x600 72.19 75.00 60.32 56.25 720x576 50.00 720x480 60.00 59.94 640x480 75.00 72.81 66.67 60.00 59.94 720x400 70.08 HDMI-A-0 disconnected (normal left inverted right x axis y axis) DVI-D-0 disconnected (normal left inverted right x axis y axis)

Output of "dmesg | grep -ie fail -ie error -ie warn":

[ 0.005414] ACPI BIOS Warning (bug): Optional FADT field Pm2ControlBlock has valid Length but zero Address: 0x0000000000000000/0x1 (20180810/tbfadt-624) [ 0.999287] RAS: Correctable Errors collector initialized. [ 3.386329] ccp 0000:09:00.2: psp initialization failed [ 3.749425] amdgpu: [powerplay] Failed to retrieve minimum clocks. [ 3.749426] amdgpu: [powerplay] Error in phm_get_clock_info [ 3.800502] platform regulatory.0: Direct firmware load for regulatory.db failed with error -2 [ 3.800503] cfg80211: failed to load regulatory.db [ 4.781143] random: 7 urandom warning(s) missed due to ratelimiting

I also added '20-amdgpu.conf" into xorg.conf.d folder:

Section "Device" Identifier "AMD" Driver "amdgpu" #Implemented by compton? #Option "TearFree" "true" EndSection Section "Monitor" Identifier "Acer" #DisplaySize 597 336 EndSection Section "Screen" Identifier "Screen1" Monitor "Acer" Device "AMD" EndSection

Last edited by omen-x (2018-11-19 20:52:53)

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