Turbo overclock
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2nd Mar, 2014, 07:09 AM
Post: #3
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Re: Turbo overclock
There's a few posts about it in the beta 2 thread, and mk01 mentioned it was something to do with a firmware change. I don't know exactly how the firmware is affecting it.
I want to use Turbo because I can..or could! It really does make a difference, and when running from USB the stability is great; who wouldn't want their pi to be sensibly controlling it's cpu for the most power possible? Setting the values you mentioned in the config.txt results in the same issue - I assumed that to set turbo is more than just setting the overclock and overvolt, since it's a firmware feature of the pi itself, with temperature management etc. I'm running rc1, without any packages from dev or staging. Here's a dmesg from a successful boot - I don't know how to get a dmesg from the unsuccessful boot, there's no ssh access. Code: [ 0.000000] Switching to timer-based delay loop This is what currently works: Terminal root@xbian:~# cat /boot/config.txt initramfs initramfs.gz 0x00a00000 gpu_mem_512=256 gpu_mem_256=100 initial_turbo=0 decode_MPG2=0x******** decode_WVC1=0x******** hdmi_ignore_cec_init=1 hdmi_ignore_cec=1 emmc_pll_core=0 arm_freq=840 core_freq=450 sdram_freq=450 over_voltage=0 This config & cmdline example does not boot: Terminal root@xbian:~# cat /boot/config.txt initramfs initramfs.gz 0x00a00000 gpu_mem_512=256 gpu_mem_256=100 initial_turbo=0 decode_MPG2=0x******** decode_WVC1=0x******** hdmi_ignore_cec_init=1 hdmi_ignore_cec=1 emmc_pll_core=0 arm_freq=1000 core_freq=500 sdram_freq=500 over_voltage=6 root@xbian:~# cat /boot/cmdline.txt telnet zswap.enabled=1 zswap.compressor=lz4 sdhci-bcm2708.sync_after_dma=0 dwc_otg.lpm_enable=0 console=tty1 root=/dev/sda1 rootflags=subvol=root/@,thread_pool=2,autodefrag,compress=lzo,commit=5 rootfstype=btrfs rootwait smsc95xx.turbo_mode=Y elevator=cfq logo.nologo quiet noswap loglevel=0 mod_scsi.scan=sync partswap startevent=mountall nosplash nohdparm --startup-event mountall |
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Messages In This Thread |
Turbo overclock - min - 2nd Mar, 2014, 03:44 AM
RE: Turbo overclock - IriDium - 2nd Mar, 2014, 05:10 AM
Re: Turbo overclock - min - 2nd Mar, 2014 07:09 AM
RE: Turbo overclock - CurlyMo - 2nd Mar, 2014, 09:42 AM
RE: Turbo overclock - min - 2nd Mar, 2014, 10:23 AM
RE: Turbo overclock - mk01 - 16th Mar, 2014, 01:00 PM
RE: Turbo overclock - min - 29th Mar, 2014, 04:57 AM
RE: Turbo overclock - mk01 - 3rd Apr, 2014, 02:48 PM
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