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Hey guys, I'm currently trying to find a distro where my laptop's hybrid graphics would work properly, as at least reasonably properly.
LAPTOP: HP DV6 6121tx
GPUs: AMD HD6770M, Integrated Intel Graphics
I did find this link:
https://wiki.archlinux.org/index.php/Hy … e_Graphics
Can someone confirm whether that works without any heating problems?
Because currently I'm on Linux Mint 13, and I used the method in:
http://ubuntuforums.org/showthread.php?t=1930450
My cards are switching properly, but I'm still having my laptop heat up quite a fair bit on the integrated card.
PS: I should mention that I do not mind completely disabling my integrated card in Linux. I'm never going to use it for anything in Linux. So if there's a way to do that (my BIOS doesn't have such an option, switching in this laptop is muxless), then I'll be content with it.
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I have a similar laptop to you -- An HP DV6t with the AMD HD 6770M graphics card. I dual boot Arch and Ubuntu on it. Arch runs excellently (and maintains low temps, which is important as this laptop can heat up pretty badly) but only with the Intel Integrated Graphics. So when I run Arch, I disable the graphics card altogether, and I get corresponding better battery.
In other words, hybrid graphics using AMD Catalyst is a no go on Arch. The reason is because the Catalyst driver -- 12.4 stable and 12.6 in beta -- do not support kernels greater than 3.3 or support Xorg 1.12. Currently, Arch uses kernel 3.4.4-2 and Xorg 1.12, which are incompatible with AMD Catalyst.
Hybrid graphics, on the other hand, works on Ubuntu because Ubuntu is not a rolling distro. Ubuntu 12.04 uses a 3.2 kernel and an older version of Xorg. These work with the Catalyst driver.
Last edited by Bordee (2012-06-27 23:51:34)
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Hi
Also a hpdv6 with AMD HD6400M.
I used vgaswitcheroo as described in the wiki you mentioned to switch off the DGP (dedicated graphics processor). This worked fine for me. Not doing this the laptop was heating up.
The IGP (integrated graphics processor) works fine. So, now I think I'll use acpi_call to switch the DGP off completely.
The reasons for doing all this were just greatly explained by Bordee in the previous post.
Edit: Since my last update, yesterday, I have the impression that vgaswitcheroo is not working properly anymore. I don't know why but temperatures are rising. When using acpi_call then they drop again. It's pretty much annoying when you got a configured working system and then after an update you get into troubles. Not the first time this happens, sorry.
Last edited by rebootl (2012-06-28 18:10:20)
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