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Groups > linux.debian.kernel > #72751 > unrolled thread
| Started by | Bjørn Mork <bjorn@mork.no> |
|---|---|
| First post | 2021-08-25 20:30 +0200 |
| Last post | 2021-08-25 21:40 +0200 |
| Articles | 2 — 2 participants |
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Bug#990868: lenovo T460 Shutdown Problem Bjørn Mork <bjorn@mork.no> - 2021-08-25 20:30 +0200
Bug#990868: lenovo T460 Shutdown Problem Faustin Lammler <faustin@fala.red> - 2021-08-25 21:40 +0200
| From | Bjørn Mork <bjorn@mork.no> |
|---|---|
| Date | 2021-08-25 20:30 +0200 |
| Subject | Bug#990868: lenovo T460 Shutdown Problem |
| Message-ID | <CQ5OW-4Yj-5@gated-at.bofh.it> |
Faustin Lammler <faustin@fala.red> writes: > Hi! > I seem to have the same problem on my T460s and it is impossible to > suspend the laptop (lid close or systemctl suspend). > > As far as I can remember, the problem appeared with kernel 5 branch (bpo > on buster). > > At that time I did not wanted to open a bug report because I was not > sure of my installation (dist-upgrade from buster, plus lots of bpo > kernel installation and test) and I had found a workaround for the > suspend problem, using those commands after reboot: > | echo reboot >/sys/power/disk > | echo disk >/sys/power/state > > Now I have a clean Debian 11 installation and both suspend and poweroff > does not work anymore. This sounds like https://bugs.debian.org/949020 Short version: Disable TPM 2.0 (select 1.2) i BIOS, or disable IOMMU by booting with intel_iommu=off on the command line. Bjørn
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| From | Faustin Lammler <faustin@fala.red> |
|---|---|
| Date | 2021-08-25 21:40 +0200 |
| Message-ID | <CQ6UG-5AF-19@gated-at.bofh.it> |
| In reply to | #72751 |
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Hi Bjørn! Bjørn Mork <bjorn@mork.no>, 25/08/2021 – 20:12:09 (+0200): > This sounds like https://bugs.debian.org/949020 Yes, exactly! I remember searching a lot when it happened to me last year, but not sufficiently apparently... > Short version: Disable TPM 2.0 (select 1.2) i BIOS, or disable IOMMU by > booting with intel_iommu=off on the command line. Switching to TPM 1.2 works perfectly, I did not tried the intel_iommu=off workaround so far... Thanks again! -- Faustin
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