overview for MoreCoffee

I've got 3 displays. I just noticed something interesting; if I apply my settings in LACT I notice some flicker, if I then logout of my gnome session and relogin it seems fine, no flickering yet. I'll do some more testing.

AMD GPU overclocking in c/[email protected]

[–] [email protected] 1 points 9 months ago (2 children)

I just tested memtest_vulkan on linux, everything default but set Mclk to 1300, and it passed. But, there was still some flickering, not non-stop, but every once in a while I would get a flicker.

AMD GPU overclocking in c/[email protected]

[–] [email protected] 2 points 9 months ago (4 children)

Basically no increase with default voltage either. If I bump mclk +10 it starts to flicker. Set it back to 1250 and no more flickering. I will have to test that on windows when I get some time.

AMD GPU overclocking in c/[email protected]

[–] [email protected] 4 points 9 months ago (6 children)

Fedora 39 + Mesa 23.3.2. Yea, the mclk is stable at 2500mhz default and even increasing it say 50mhz seems to cause flickering, that will sometimes go away then come back. Adrenaline version is latest, 23.12.1.

AMD GPU overclocking in c/[email protected]

[–] [email protected] 4 points 9 months ago* (last edited 9 months ago) (8 children)

Windows:

mclk: 2650
clk: 3000
voltage: 1020
power limit: 15%

Linux LACT settings:

mclk: 1325
clk: 3000
voltage offset: -80
power limit: 333w

It's a powercolor hellhound 7900xt.

> cat pp_od_clk_voltage 
OD_SCLK:
0: 500Mhz
1: 2815Mhz
OD_MCLK:
0: 97Mhz
1: 1250MHz
OD_VDDGFX_OFFSET:
0mV
OD_RANGE:
SCLK:     500Mhz       5000Mhz
MCLK:      97Mhz       1500Mhz
VDDGFX_OFFSET:    -450mv          0mv

22

AMD GPU overclocking (lemm.ee)

submitted 9 months ago by [email protected] to c/[email protected]

12 comments fedilink

I've been messing around with overclocking my 7900xt on linux to see if I can use the same settings as I do on windows. Unfortunately, it doesn't seem nearly as stable on linux. For some reason adjusting the memory clock by about any amount causes a lot of screen flickering. Has anyone had much success overclocking their AMD gpu with the same settings as on windows? I'm running wayland, kernel 6.7.1 with a drm patch fo fix setting power level. Using LACT to do the overclock.

3

Systemd 254 - now with soft-reboot (github.com)

submitted 1 year ago by [email protected] to c/[email protected]

1 comments fedilink

Systemd 254 released and now has a new soft-reboot option:

    * A new "soft-reboot" mechanism has been added to the service manager.
      A "soft reboot" is similar to a regular reboot, except that it
      affects userspace only: the service manager shuts down any running
      services and other units, then optionally switches into a new root
      file system (mounted to /run/nextroot/), and then passes control to a
      systemd instance in the new file system which then starts the system
      up again. The kernel is not rebooted and neither is the hardware,
      firmware or boot loader. This provides a fast, lightweight mechanism
      to quickly reset or update userspace, without the latency that a full
      system reset involves. Moreover, open file descriptors may be passed
      across the soft reboot into the new system where they will be passed
      back to the originating services. This allows pinning resources
      across the reboot, thus minimizing grey-out time further. This new
      reboot mechanism is accessible via the new "systemctl soft-reboot"
      command.>