3 ms·
You can try setting `i915.enable_psr=0` at boot (the "add i915.enable_psr=0 into your kernel boot parameters" part of the comment I linked to and posted) or set
by trynewideas 4y ago
You can try setting `i915.enable_psr=0` at boot (the "add i915.enable_psr=0 into your kernel boot parameters" part of the comment I linked to and posted) or set the enable_psr parameter on the i915 kernel module.
The Fedora docs cover setting module parameters.[1] This is how setting the kernel module parameter manifests on my system:
$ sudo grep -iR i915.enable_psr /etc/modprobe.d
/etc/modprobe.d/i915.conf:options i915 enable_psr=0
$ sudo cat /etc/modprobe.d/i915.conf
options i915 enable_psr=0
Assuming you use the default GRUB 2 boot loader, the Fedora docs also cover setting the kernel boot parameters.[2]
1: https://docs.fedoraproject.org/en-US/fedora/latest/system-administrators-guide/kernel-module-driver-configuration/Working_with_Kernel_Modules/#sec-Setting_Module_Parameters https://docs.fedoraproject.org/en-US/fedora/latest/system-ad...
2: https://docs.fedoraproject.org/en-US/fedora/latest/system-administrators-guide/kernel-module-driver-configuration/Working_with_the_GRUB_2_Boot_Loader/#sec-Making_Persistent_Changes_to_a_GRUB_2_Menu_Using_the_grubby_Tool https://docs.fedoraproject.org/en-US/fedora/latest/system-ad...
- adonig 4y agoI'm not sure why it doesn't have an effect on my system. When I add the i915.conf to /etc/modprobe.d/ and reboot my system the PSR is still active: [root@fwk ~]# cat /etc/modprobe.d/i915.conf options i915 enable_psr=0 [root@fwk ~]# cat /sys/kernel/debug/dri/1/i915_edp_psr_status Sink support: yes [0x03] PSR mode: PSR2 enabled Source PSR ctl: enabled [0x80000226] Source PSR status: SLEEP [0x30000114] Busy frontbuffer bits: 0x00000000 Frame: PSR2 SU blocks: 0 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 It also has no effect when I append i915.enable_psr=0 to GRUB_CMDLINE_LINUX in /etc/default/grub and reboot.
- trynewideas 4y agoMine's confirmed disabled, so I'm stumped: $ sudo cat /sys/kernel/debug/dri/1/i915_edp_psr_status Sink support: yes [0x03] PSR mode: disabled PSR sink not reliable: no I'd raise a proper support request[1] with Framework then, who are generally more responsive and thorough with these kinds of problems than most laptop tech support (they put me down this path to start with). 1: https://framework.kustomer.help/contact/support-request-ryon9uAuq https://framework.kustomer.help/contact/support-request-ryon...
- adonig 4y agoMay I ask you what security features you have enabled? Mine looks like this: [root@fwk ~]# fwupdmgr security Host Security ID: HSI:3 (v1.8.10) HSI-1 CSME manufacturing mode: Locked CSME override: Locked CSME v0:16.0.15.1810: Valid MEI key manifest: Valid Platform debugging: Disabled SPI BIOS region: Locked SPI lock: Enabled SPI write: Disabled Supported CPU: Valid TPM empty PCRs: Valid TPM v2.0: Found UEFI platform key: Valid UEFI secure boot: Enabled HSI-2 IOMMU: Enabled Intel BootGuard: Enabled Intel BootGuard ACM protected: Valid Intel BootGuard OTP fuse: Valid Intel BootGuard verified boot: Valid Platform debugging: Locked TPM PCR0 reconstruction: Valid HSI-3 Intel BootGuard error policy: Valid Intel CET Enabled: Enabled Pre-boot DMA protection: Enabled Suspend-to-idle: Enabled Suspend-to-ram: Disabled HSI-4 Intel SMAP: Enabled Encrypted RAM: Disabled Runtime Suffix -! Intel CET Active: Supported Linux kernel: Untainted Linux kernel lockdown: Enabled Linux swap: Encrypted fwupd plugins: Untainted I was wondering whether maybe one of those (maybe the kernel lockdown) prevents me from switching the PSR mode?