Public bug reported:
nvidia-375.postinst not always build initramfs by default:
"
ALTERNATIVE=$(readlink /etc/alternatives/x86_64-linux-gnu_gl_conf)
if [ "$ALTERNATIVE" = "/usr/lib/nvidia-375/ld.so.conf" ]; then
# Update initramfs so that the blacklist ends up in the initramfs
if [ -x /usr/sbin/update-initramfs ]; then
/usr/sbin/update-initramfs -u
"
it the case of user who are using intel then update driver from
nvidia-375.20 to nvidia-375.82 will get screen dark after prime-select
nvidia later.
syslog:
"
NVRM: loading NVIDIA UNIX x86_64 Kernel Module 375.20 Tue Nov 15 16:49:10 PST
2016 (using threaded interrupts)
......
NVRM: API mismatch: the client has the version 375.82, but
NVRM: this kernel module has the version 375.20. Please
NVRM: make sure that this kernel module and all NVIDIA driver
NVRM: components have the same version.
"
The root cause is the nvidia kernel module in initramfs not be updated
in this case.
impacted issues:
LP: #1651627
** Affects: oem-priority
Importance: Critical
Assignee: Alex Tu (alextu)
Status: Confirmed
** Affects: nvidia-graphics-drivers-375 (Ubuntu)
Importance: Undecided
Status: New
** Also affects: oem-priority
Importance: Undecided
Status: New
** Changed in: oem-priority
Assignee: (unassigned) => Alex Tu (alextu)
** Changed in: oem-priority
Importance: Undecided => Critical
** Changed in: oem-priority
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1717151
Title:
driver installation might not build initramfs then cause dark screen
after switching to nvidia
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