Thanks Pellaeon ! Even I can reproduce it (using Ubuntu 24.04) but I can see it gets toggled correctly using below sysfs: cat /sys/class/drm/privacy_screen-thinkpad_acpi/hw_state
Marco – Do you have any comment to debug this? Thank you very much ! Thanks & Regards, Nitin From: Pellaeon Lin <nfsmw...@gmail.com> Sent: Thursday, June 19, 2025 10:56 PM To: Nitin Joshi1 <njos...@lenovo.com> Cc: ibm-acpi-devel@lists.sourceforge.net Subject: Re: [External] Re: [ibm-acpi-devel] PrivacyGuard doesn't work even by sending ACPI commands directly Hi all, I'd like to bring up this issue again. I just upgraded to Ubuntu 25.04, kernel 6.14.0-15-generic and I'm still having the same issue (the same ACPI call still have no effect). Thanks, Nitin Joshi1 <njos...@lenovo.com<mailto:njos...@lenovo.com>> 於 2024年9月2日 週一 下午9:42寫道： Hello Pellaeon, >> @Mark: has the team replied anything? Mark has informed me regarding this and I am yet to check this . Sorry for this ! I will try to get hold of system and try this within this week , if I find AMD e-privacy guard machine . Thanks From: Pellaeon Lin <nfsmw...@gmail.com<mailto:nfsmw...@gmail.com>> Sent: Sunday, September 1, 2024 2:32 PM To: ibm-acpi-devel@lists.sourceforge.net<mailto:ibm-acpi-devel@lists.sourceforge.net> Subject: [External] Re: [ibm-acpi-devel] PrivacyGuard doesn't work even by sending ACPI commands directly Hi, @Mark: has the team replied anything? @Marco: `proptest` on my system did not return any property related to privacy screen, is this normal? (I ran `proptest | grep -i privacy`, which returned empty result.) Thanks, Marco Trevisan (Treviño) <m...@3v1n0.net<mailto:m...@3v1n0.net>> 於 2024年6月4日 週二 上午2:07寫道： Hi, Not sure if something changed or it is different in newer models, but the privacy screen feature so far has been exposed as a KMS property you can inspect and set with tools like proptest (in libdrm-tests package for what concerns ubuntu) Cheers On giu 3 2024, at 1:46 pm, Pellaeon Lin <nfsmw...@gmail.com<mailto:nfsmw...@gmail.com>> wrote: > Hi, > > I have a ThinkPad X13 Gen 2 AMD with PrivacyGuard. But by pressing the > combination key Fn+D it does not toggle the PrivacyGuard, the > PrivacyGuard stays on. I've tested: > > - Fn+D does toggle PrivacyGuard when I'm in the BIOS > - Fn+D has no effect on Ubuntu 22.10, Ubuntu 23.04, Ubuntu 23.10, > Ubuntu 24.04 and Fedora 40 (except Ubuntu 23.10 and 24.04, all was > tested using LiveUSB) > > In all of the Linux cases, I can confirm that by pressing Fn+D, the > status value of /proc/acpi/ibm/lcdshadow actually changes. > > I've always thought this was a Ubuntu-specific issue, until I tested Fedora. > > I tested this further by installing the acpi-call-dkms package on > Ubuntu and issues the following call: > > echo '\_SB.PCI0.LPC0.EC0.HKEY.SSSS 0x1' | sudo tee /proc/acpi/call > > It returned 0 (which should mean success), but PrivacyGuard is still > ON. Then I tried to call it with 0x0: > > echo '\_SB.PCI0.LPC0.EC0.HKEY.SSSS 0x0' | sudo tee /proc/acpi/call > > Also getting 0 in return. PrivacyGuard is still ON. > > Based on my limited understanding of ACPI and the kernel, at this > point it might be a firmware issue? (fwupdmgr shows that there is no > available updates) But based on my reading and understanding of > thinkpad_acpi.c, the particular ACPI call that I issued is also how > the Linux driver currently operates the PrivacyGuard feature, which > means the driver might also be affected by this issue. So I'm hoping > someone could help me debug this further, or point out anything that > I'm not understanding correctly. > > Thanks! > _______________________________________________ > > ibm-acpi-devel mailing list > > ibm-acpi-devel@lists.sourceforge.net<mailto:ibm-acpi-devel@lists.sourceforge.net> > > https://lists.sourceforge.net/lists/listinfo/ibm-acpi-devel
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