Re: [gentoo-user] AMD RX GPU in Gentoo
On 17/6/19 2:16 π.μ., mad.scientist.at.la...@tutanota.com wrote: Sadly, in my experience graphics cards draw a fairly steady current independent of usage (it varies a bit, but less than 20%). Some of the newer cards may be better. There are utilities for at least some cards to adjust the clock on the GPU (normally used by mad gamers/miners to overclock). These might be an option, cmos draw power at a rate determined by clock frequency and it's a squared relationship, half the clock speed means about 1/4 the power draw. I would also like to find some low power graphics cards, The only option I'm aware of is to buy older, used cards on ebay. I have a few machines I'd like to run headless most of the time, but basic text or basic graphics would be nice occasionally, but I don't want to waste 200W+ on a high end graphics card that never gets exercised. Other than that, I've used an external 80mm fan to blow air across the heat sink and out the adjacent slot (after the attached fan failed and i removed it. I mounted the fan in the drive cage. The fans on graphics cards are generally moving air the worst way possible (just like many cpu heat sink/fan combos), blasting it into the face of a heatsink at high speed so there is some flow through the channels with massive, massive turbulence/noise. Oddly enough although the built in fan had a tachometer the card doesn't pay any attention to what it thinks is the fan speed, even if the fan stalls completely so you don't have to "fool" the graphics card when removing the provided fan and using an "external" fan. These are very good points, thanks! (Thanks to all btw who replied). Well, the PC is connected to a 1440p monitor, so it's not headless like that, and although it's not that often I fire up Steam, I do have some games to waste time now and then :-) I will research more on power consumption (which goes hand in hand with being cool and silent). From the little I've seen AMD GPUs should have some sort of power management with the AMDGPU driver. Emmanuel "Would you like to see us rule again, my friend? All you have to do is follow the worms." Pink Floyd, The Wall, Waiting for the worms Jun 16, 2019, 3:36 PM by antli...@youngman.org.uk: On 11/06/2019 20:21, Alec Ten Harmsel wrote: Plus, my current GT730 is passively cooled. Are there any RX cards that at least spin down the fans when I'm working on desktop (no plasma/gnome, simple Openbox with no heavy gpu requirements). I really like silence!:-) I can't hear mine at all right now. The larger the fan, the slower (and quieter) it spins. So if it needs a fan, try and make sure it's a big one. Cheers, Wol
Re: [gentoo-user] AMD RX GPU in Gentoo
Sadly, in my experience graphics cards draw a fairly steady current independent of usage (it varies a bit, but less than 20%). Some of the newer cards may be better. There are utilities for at least some cards to adjust the clock on the GPU (normally used by mad gamers/miners to overclock). These might be an option, cmos draw power at a rate determined by clock frequency and it's a squared relationship, half the clock speed means about 1/4 the power draw. I would also like to find some low power graphics cards, The only option I'm aware of is to buy older, used cards on ebay. I have a few machines I'd like to run headless most of the time, but basic text or basic graphics would be nice occasionally, but I don't want to waste 200W+ on a high end graphics card that never gets exercised. Other than that, I've used an external 80mm fan to blow air across the heat sink and out the adjacent slot (after the attached fan failed and i removed it. I mounted the fan in the drive cage. The fans on graphics cards are generally moving air the worst way possible (just like many cpu heat sink/fan combos), blasting it into the face of a heatsink at high speed so there is some flow through the channels with massive, massive turbulence/noise. Oddly enough although the built in fan had a tachometer the card doesn't pay any attention to what it thinks is the fan speed, even if the fan stalls completely so you don't have to "fool" the graphics card when removing the provided fan and using an "external" fan. "Would you like to see us rule again, my friend? All you have to do is follow the worms." Pink Floyd, The Wall, Waiting for the worms Jun 16, 2019, 3:36 PM by antli...@youngman.org.uk: > On 11/06/2019 20:21, Alec Ten Harmsel wrote: > >>> Plus, my current GT730 is passively cooled. Are there any RX cards that >>> at least spin down the fans when I'm working on desktop (no >>> plasma/gnome, simple Openbox with no heavy gpu requirements). I really >>> like silence!:-) >>> >> I can't hear mine at all right now. >> > > The larger the fan, the slower (and quieter) it spins. So if it needs a fan, > try and make sure it's a big one. > > Cheers, > > Wol >
Re: [gentoo-user] AMD RX GPU in Gentoo
On 11/06/2019 20:21, Alec Ten Harmsel wrote: Plus, my current GT730 is passively cooled. Are there any RX cards that at least spin down the fans when I'm working on desktop (no plasma/gnome, simple Openbox with no heavy gpu requirements). I really like silence!:-) I can't hear mine at all right now. The larger the fan, the slower (and quieter) it spins. So if it needs a fan, try and make sure it's a big one. Cheers, Wol
Re: [gentoo-user] AMD RX GPU in Gentoo
On Tue, Jun 11, 2019, at 10:56, Emmanuel Vasilakis wrote: > Hi! > > So, assuming I would get an RX550/560 card, how well do the amdgpu > drivers (open source) work? Are they ok for steam games? Do they provide > KMS (switching to a Ctrl+Alt+F1 is always garbled now). ? Are they > completely tear free? They work pretty well for me. I have an RX 570 (and a Ryzen 5 1600), works great for the most part but in all honesty it did take me a while to find a stable kernel. I'm not sure if that's due to the CPU or the GPU, or just me not knowing what I'm doing. All I play is CS:GO, which runs very well. I've played a bit of Rust too, which also works well. > Plus, my current GT730 is passively cooled. Are there any RX cards that > at least spin down the fans when I'm working on desktop (no > plasma/gnome, simple Openbox with no heavy gpu requirements). I really > like silence! :-) I can't hear mine at all right now. Hope this helps, Alec
Re: [gentoo-user] AMD RX GPU in Gentoo
On 6/11/19 7:56 AM, Emmanuel Vasilakis wrote: Hi! I'm running a pretty old PC. A Core2Duo E8400 and a GT730 nvidia card. Now, this is ok for what I need: work (emacs and bunch of terminals) and some little Kerbal Space Program. I'm thinking of upgrading some time in the next months to a 3600 AMD Ryzen when they are available, but in the mean time, I was also thinking about changing to an AMD gpu too. The nvidia driver although ok, is giving me some trouble mostly when suspending to ram. Sometimes it wont work, and the culprit from dmesg is likely the nvidia blob. So, assuming I would get an RX550/560 card, how well do the amdgpu drivers (open source) work? Are they ok for steam games? Do they provide KMS (switching to a Ctrl+Alt+F1 is always garbled now). ? Are they completely tear free? Plus, my current GT730 is passively cooled. Are there any RX cards that at least spin down the fans when I'm working on desktop (no plasma/gnome, simple Openbox with no heavy gpu requirements). I really like silence! :-) Thanks, Emmanuel I am currently setting up a new computer for a friend's parents. It's a 2400G with the Vega graphics. I installed gentoo to stress test the system (compiling mostly, did system and a full KDE desktop) and have had no problems but I haven't tried games. HDMI out works, VGA out works, HDMI audio works. I just had to get a kernel > 4.15 (I think it's 4.18.x right now) and select the amdgpu options. It seems that the default profile installs amdgpu for X automatically, didn't even have to do anything there. I did check X and it is using the amdgpu drivers. I streamed 1080 video from youtube for a couple of hours and I didn't notice any glitches. amdgpu requires modesetting, if you do a 'nomodeset' option all you get is a black screen. Now, I haven't tried them with the RX cards, but for the Vega graphics they are OK. Dan
