the machine of lenovo M715 with the AMD GPU (Radeon Vega 8 Mobile, rev ca, 1002:15dd) often hangs randomly
Bug #1796789 reported by
Hui Wang
This bug affects 1 person
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
HWE Next |
Fix Released
|
Undecided
|
Unassigned | ||
linux (Ubuntu) |
Fix Released
|
Critical
|
Hui Wang | ||
Bionic |
Fix Released
|
Undecided
|
Unassigned | ||
linux-oem (Ubuntu) |
Fix Released
|
Undecided
|
Unassigned | ||
Bionic |
Fix Released
|
Undecided
|
Unassigned |
Bug Description
[Impact]
On the machine of Lenovo M715, there is an AMD GPU (1022:15dd rev ca), when it
switchs to amdgpufb, the system will hang randomlly, sometimes it hangs during
boot, reboot or poweroff, sometimes it hangs with longtime standby.
[Fix]
Through bisecting, I found this patch can fix the problem, looks like without
this patch the ATOM BIOS can't be parsed correctlly.
[Test Case]
Did the test of "boot, reboot and poweroff" 5 times, worked very well.
Let the system standby over one night, worked very well.
[Regression Potential]
Very low, I tested this patch on at least 6 differnt lenovo machines
and those machines have different AMD GPUs on them, all of them worked
as well as before.
CVE References
Changed in linux (Ubuntu): | |
importance: | Undecided → Critical |
tags: | added: originate-from-1789802 sutton |
description: | updated |
Changed in linux (Ubuntu Bionic): | |
status: | New → In Progress |
status: | In Progress → Fix Committed |
Changed in linux-oem (Ubuntu Bionic): | |
status: | New → Fix Committed |
tags: |
added: verification-done-bionic removed: verification-needed-bionic |
Changed in linux-oem (Ubuntu): | |
status: | New → Fix Released |
Changed in hwe-next: | |
status: | New → Fix Released |
tags: | added: cscc |
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This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:
apport-collect 1796789
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the Ubuntu Kernel Team.