Created attachment 32960 [details] [review] dmesg with new_pll=1 Latest drm-radeon-testing kernel (1 feb 2010), as soon as KMS kicks in with the new_pll algo, the LVDS picture shows some kind of ripple effect, as if something was slightly wrong with the refresh rate. Kind of hard to describe.. The effect persists even when starting X. Changing screen resolution doesn't help. The new_pll has never worked for me since its introduction back in december (took me a while to find out it was the culprit). Booting with radeon.new_pll=0 gives me a perfectly usable system. On a side, probably unrelated note, I can't help but notice that the kernel (both the working and the non-working versions) finds an HDMI port, but unless I'm becoming blind my notebook has no HDMI out .. hm.
Created attachment 32961 [details] [review] dmesg with new_pll=0
Created attachment 32962 [details] [review] xrandr --verbose output. It's the same for new_pll=0 and =1
(In reply to comment #0) > Created an attachment (id=32960) [details] > dmesg with new_pll=1 > > Latest drm-radeon-testing kernel (1 feb 2010), as soon as KMS kicks in with the > new_pll algo, the LVDS picture shows some kind of ripple effect, as if > something was slightly wrong with the refresh rate. Kind of hard to describe.. > The effect persists even when starting X. Changing screen resolution doesn't > help. The new_pll has never worked for me since its introduction back in > december (took me a while to find out it was the culprit). Booting with > radeon.new_pll=0 gives me a perfectly usable system. > Please attach the output of lspci -vnn and I can add a quirk for your laptop. > On a side, probably unrelated note, I can't help but notice that the kernel > (both the working and the non-working versions) finds an HDMI port, but unless > I'm becoming blind my notebook has no HDMI out .. hm. > It's likely on a docking station.
Created attachment 32992 [details] [review] lspci -vnn thank you. For those interested, it is a Toshiba A300-1BU laptop.
Created attachment 33009 [details] [review] 1/2 add pll algo selection rework The two attached patches should fix the issue for you.
Created attachment 33010 [details] [review] 2/2 add lvds pll quirk for toshiba second patch.
yup it works now, thanks again
Hello, I have exactly the same problem with my laptop (dell studio 15) with RV620 chipset. with new_pll=0 no flickering lines, with new_pll=1 i have flickering lines i'm running 2.6.33-rc7-git6 kernel, are this patchs already pull in main kernel tree ? do you need more informations ? (dmeg , drm debug? ) Regards, Alexandre Derumier
(In reply to comment #8) > Hello, I have exactly the same problem with my laptop (dell studio 15) with > RV620 chipset. > > with new_pll=0 no flickering lines, with new_pll=1 i have flickering lines > > > i'm running 2.6.33-rc7-git6 kernel, are this patchs already pull in main kernel > tree ? > > > do you need more informations ? (dmeg , drm debug? ) lspci -vnn
Created attachment 33255 [details] lspci , dell studio 15 laptop
(In reply to comment #10) > Created an attachment (id=33255) [details] > lspci , dell studio 15 laptop > what size panel is in your laptop?
it's a 15 inch panel xrandr 1280x800 60.0 + 1280x720 59.9 1152x768 59.8 1024x768 59.9 800x600 59.9 848x480 59.7 720x480 59.7 640x480 59.4
Created attachment 33334 [details] [review] add lvds pll quirk for dell studio 15 I found your panel size on another bug. This patch should take care of it.
i'll try the patch this night, thanks !
i have apply the patchs on last kernel git, it's works, no flickering line. Thanks again.
Patch sent upstream
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