| Bug ID | 111128 |
|---|---|
| Summary | Impossible to change pstate on GT610M |
| Product | Mesa |
| Version | 19.1 |
| Hardware | x86-64 (AMD64) |
| OS | Linux (All) |
| Status | NEW |
| Severity | normal |
| Priority | medium |
| Component | Drivers/DRI/nouveau |
| Assignee | nouveau@lists.freedesktop.org |
| Reporter | gzgagz@zoho.eu |
| QA Contact | nouveau@lists.freedesktop.org |
Hello, I have an asus UX32VD, with a GT610M inside, which works with the Optimus architecture, handle by PRIME. The bug is currently with the kernel 5.2.0, but it have always been like that as far as I remember. uname -a : Linux ga-laptop 5.2.0-arch2-1-ARCH #1 SMP PREEMPT Mon Jul 8 18:18:54 UTC 2019 x86_64 GNU/Linux lspci : 01:00.0 3D controller: NVIDIA Corporation GF117M [GeForce 610M/710M/810M/820M / GT 620M/625M/630M/720M] (rev a1) While it is not in use, nouveau shutdown the chipset as expected : cat /sys/kernel/debug/dri/1/pstate 07: core 270 MHz memory 405 MHz 0f: core 625 MHz memory 900 MHz DC: core 0 MHz memory 0 MHz While an app is launched with DRI_PRIME=1, we can see that the chipset is set to 07 : DRI_PRIME=1 glxgears & cat /sys/kernel/debug/dri/1/pstate 07: core 270 MHz memory 405 MHz 0f: core 625 MHz memory 900 MHz DC: core 270 MHz memory 324 MHz But when I tried to reclock, I have an error : echo 0f > /sys/kernel/debug/dri/1/pstate -bash: echo: write error: Function not implemented And I have this in dmesg: [ 351.283183] nouveau 0000:01:00.0: bus: MMIO write of ffff8c1f FAULT at 6013d4 [ IBUS ] [ 458.362570] nouveau 0000:01:00.0: bus: MMIO write of 0000001f FAULT at 6013d4 [ IBUS ] Thanks
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