Ubuntu
xorg-server package

  1. Bug #1923153
  2. Comment #2

Comment 2 for bug 1923153

Revision history for this message
jeremyszu (os369510) wrote : Re: Display output laggy from iGPU when operating on desktop with attaching AMD R7 430 graphic (dGPU)

I tried to install hirsute daily build (495fe189e32d873ba79d7753134c22353ea89e8e6d62498f6c825a5de6a8a4a7) and didn't see this issue.

but the xorg might have some problems when using hirsute.

here is the result of $ xrandr -d :0 --prop
---
 PRIME Synchronization: 0
  supported: 0, 1
 GAMMA_LUT_SIZE: 4096
  range: (0, -1)
 DEGAMMA_LUT_SIZE: 4096
  range: (0, -1)
 GAMMA_LUT: 0
  range: (0, 65535)
 CTM: 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0
  0 1
 DEGAMMA_LUT: 0
  range: (0, 65535)
 TearFree: auto
  supported: off, on, auto
 subconnector: HDMI
  supported: Unknown, VGA, DVI-D, HDMI, DP, Wireless, Native
 HDCP Content Type: HDCP Type0
  supported: HDCP Type0, HDCP Type1
 Content Protection: Undesired
  supported: Undesired, Desired, Enabled
 vrr_capable: 0
  range: (0, 1)
 max bpc: 8
  range: (8, 16)
 underscan vborder: 0
  range: (0, 128)
 underscan hborder: 0
  range: (0, 128)
 underscan: off
  supported: off, on, auto
 scaling mode: None
  supported: None, Full, Center, Full aspect
 link-status: Good
  supported: Good, Bad
 CONNECTOR_ID: 80
  supported: 80
 non-desktop: 0
  range: (0, 1)
---

When issuing the same command on hirsute daily build, it shows
---
 non-desktop: 0
  range: (0, 1)
---
only.

Tried packages from https://launchpad.net/~oibaf/+archive/ubuntu/graphics-drivers doesn't help.