Displaying 4 results from an estimated 4 matches for "pci_bridge_check_rang".
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pci_bridge_check_ranges
2018 Aug 28
6
Rewriting Intel PCI bridge prefetch base address bits solves nvidia graphics issues
...following procedure works fine (note
the addition of step 3):
1. Boot
2. Suspend/resume
3. echo rescan > /sys/bus/pci/devices/0000:00:1c.0/rescan
4. Load nouveau driver
5. Start X
I worked through the rescan codepath until I had isolated the specific
code which magically makes things work (in pci_bridge_check_ranges).
Having found that, step 3 in the above test procedure can be replaced
with a simple:
setpci -s 00:1c.0 0x28.l=0
> When you say "parent PCI" bridge, is that actually the device you see in
> "lspci -tv"? On a Dell XPS 9560, the GPU is under a different device:
>...
2018 Aug 29
0
Rewriting Intel PCI bridge prefetch base address bits solves nvidia graphics issues
...ddition of step 3):
>
> 1. Boot
> 2. Suspend/resume
> 3. echo rescan > /sys/bus/pci/devices/0000:00:1c.0/rescan
> 4. Load nouveau driver
> 5. Start X
>
> I worked through the rescan codepath until I had isolated the specific
> code which magically makes things work (in pci_bridge_check_ranges).
>
> Having found that, step 3 in the above test procedure can be replaced
> with a simple:
> setpci -s 00:1c.0 0x28.l=0
>
>> When you say "parent PCI" bridge, is that actually the device you see in
>> "lspci -tv"? On a Dell XPS 9560, the GPU is...
2018 Aug 28
0
Rewriting Intel PCI bridge prefetch base address bits solves nvidia graphics issues
...ition of step 3):
>
> 1. Boot
> 2. Suspend/resume
> 3. echo rescan > /sys/bus/pci/devices/0000:00:1c.0/rescan
> 4. Load nouveau driver
> 5. Start X
>
> I worked through the rescan codepath until I had isolated the specific
> code which magically makes things work (in pci_bridge_check_ranges).
>
> Having found that, step 3 in the above test procedure can be replaced
> with a simple:
> setpci -s 00:1c.0 0x28.l=0
>
> > When you say "parent PCI" bridge, is that actually the device you see in
> > "lspci -tv"? On a Dell XPS 9560, the GPU...
2018 Aug 24
2
Rewriting Intel PCI bridge prefetch base address bits solves nvidia graphics issues
Hi,
We are facing a suspend/resume problem with many different Asus laptop
models (30+ products) with Intel chipsets (multiple generations) and
nvidia GPUs (several different ones). Reproducers include:
1. Boot
2. Suspend/resume
3. Load nouveau driver
4. Start X
5. Observe slow X startup and many many errors in logs (primarily
nouveau fifo faults)
or
1. Boot
2. Load nouveau driver
3. Start X