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login: XGI Z7/Z9 (XG20 core) graphic chip requires master-of-seat to be set

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This graphic chip doesn't have a DRM driver and fallback to vesa-framebuffer
driver.

Without this patch, users of such chip suddenly see their GUI broken without
any indication or reason of what happened (no error message). Hence this
regression is near to impossible to troubleshoot for end users.
This commit is contained in:
Franck Bui 2021-06-30 09:09:37 +02:00 committed by Luca Boccassi
parent 759f76534f
commit b25389d2bb
1 changed files with 4 additions and 0 deletions
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4
src/login/71-seat.rules.in
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@ -29,6 +29,10 @@ SUBSYSTEM=="graphics", KERNEL=="fb[0-9]", IMPORT{cmdline}="nomodeset", TAG+="mas
SUBSYSTEM=="pci", ENV{ID_PCI_CLASS_FROM_DATABASE}=="Display controller", \
ENV{DRIVER}=="", IMPORT{cmdline}="nomodeset", TAG+="seat", TAG+="master-of-seat"
# eXtreme Graphic Innovation Z7/Z9 (XG20 core), a rather ancient graphic chip,
# doesn't have a DRM driver and fallback to vesafb.
SUBSYSTEM=="pci", ATTR{vendor}=="0x18ca", ATTR{device}=="0x0020", TAG+="master-of-seat"
SUBSYSTEM=="drm", KERNEL=="card[0-9]*", TAG+="seat", TAG+="master-of-seat"
# Allow individual USB ports to be assigned to a seat