[+cc linux-pci, linux-kernel, linux-pm] I'm not sure I understand the problem yet, so please correct me if I'm wrong:
- Your system has both Nvidia and Intel graphics devices - When you use Intel graphics, lspci, lshw, and /proc/bus/pci for the Nvidia device show invalid data (0xff) after suspend/resume - When you use Nvidia graphics, suspend/resume doesn't work (instead of resuming, you just get a blank screen) Can you attach the output of "sudo lspci -vv" to the bugzilla, please? ---------- Forwarded message --------- From: <bugzilla-dae...@bugzilla.kernel.org> Date: Tue, May 29, 2018 at 1:29 PM Subject: [Bug 199879] New: Very basic the Pci device is not resumed from suspend mode To: <bhelg...@google.com> https://bugzilla.kernel.org/show_bug.cgi?id=199879 Bug ID: 199879 Summary: Very basic the Pci device is not resumed from suspend mode Product: Drivers Version: 2.5 Kernel Version: kernel-4.15.17 Hardware: x86-64 OS: Linux Tree: Mainline Status: NEW Severity: high Priority: P1 Component: PCI Assignee: drivers_...@kernel-bugs.osdl.org Reporter: u...@wp.pl Regression: No Hi, I have problem with very basic device. Device pci-e not resume from suspend. Only sleep. I have a problem with anyone interested in it, because everyone thinks it is the fault of the device drivers themselves. But this is not a problem. This device is a basic device. I've already installed drivers on various hardware and it has always been ok, but not this time. I'm an electronics technician. After diagnosing what I managed, in my opinion the device remains asleep. Where does my application come from? I have multiuser mode and I do not use this device. After suspend lspci and lshw show normal data. Normal data is in /proc/bus/pci/... Next suspend and resume, and... lspci see hardware, but is error lshw see hardware as undefined device data in /proc/bus/pci/... is only 0xFF Hardware sleep, not work, not ready. This is bug. But since the problem concerns the graphics card in the configuration with the second default Intel card, everyone thinks that this is another driver problem as always and nobody wants to take a look at it :( The problem is easy to recognize. On the internet, I've seen a lot of unresolved problems in which I could see exactly what I found. My hardware is Lenovo with NVidia and Intel Graphics. Problem is with NVidia. I tested Z710 and Z50-70. The first symptom of the problem is lspci in multiuser mode (or when is XServer with intel graphics). After suspend NVidia have e.g "rev. A1", after resume is "rev. FF". Next symptom lshw and /proc/bus/pci/... When system started with normal NVidia driver, system not resume and halt, only black screen. There are many examples on the Internet with unsolved problems e.g https://www.lwks.com/index.php?option=com_kunena&func=view&catid=21&id=124374&Itemid=81 -- You are receiving this mail because: You are watching the assignee of the bug.
