Red Hat Bugzilla – Bug 1471596
The X server fails to display content on monitor connected to dedicated GPU
Last modified: 2018-05-03 04:46:55 EDT
Created attachment 1299623 [details]
Description of problem:
On a Dell PN 5N793, where the integrated Intel GPU is connected to the built in panel, while a dedicated Nvidia GPU is connected to the HDMI port, the X server fails to display anything but the mouse cursor on a monitor connected to the HDMI.
Version-Release number of selected component (if applicable)
X version: 1.19.3-4.fc26
The nouveau kernel module is driver.
Steps to Reproduce:
1. Start Fedora
2. Connect HDMI cable
3. Observe that nothing but the cursor will ever show on the monitor
For example, no background image, and if you drag a window, it wont show. Moving the cursor there will show the cursor however.
Relevant parts of the journal:
nvc0_screen_create:811 - Base screen init failed: -19
(EE) modeset(G0): glamor initialization failed
so I guess it falls back on some software path?
FWIW, I have seen it temporarily showing half correct content for example when showing / hiding the GNOME Shell overview.
Possible work around (that works on the HW I tested): Upgrade to Linux 4.12, as it includes support for the particular GPU I have here. Using the ones here worked for example: https://kojipkgs.fedoraproject.org/packages/kernel/4.12.0/1.fc27/
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