don't suppose you could try a newer upstream kernel? I see you are on IA64, not sure how much testing KMS has seen on IA64. Ok i can try another kernel that`s no problem - this one is just the default debian kernel. Do you have a custom one on mind or just the latest (3.2.1 now)? I try to help as much as i`m able to :) I attach some info till the end of the week (i try shorter). My tries compiling actual kernel or using debian testing - whezzy - with 3.x kernel give the same result hang during boot. I`m investigating it but that mean that i have nothing more in this topic about behavior on other kernels. Please continue without this if possible. (In reply to comment #4) > My tries compiling actual kernel or using debian testing - whezzy - with 3.x > kernel give the same result hang during boot. I`m investigating it but that > mean that i have nothing more in this topic about behavior on other kernels. > Please continue without this if possible. Make sure you have the ucode for the GPU available in your initrd if you are using one or if you compiled the radeon driver into the kernel, you'll need to include the ucode as well. Please dump the display registers using radeonreg (http://cgit.freedesktop.org/~airlied/radeontool/) in both the working and non-working cases. in working case (as root) ./radeonreg regs radeon > working.regs in broken case (as root) ./radeonreg regs radeon > broken.regs And attach the outputs to this bug. Alternatively, you can use radeontool to dump the regs: radeontool regmatch '*' > working.regs etc. Created attachment 56278 [details]
radeontool regs while no kms and dual screen working
Created attachment 56279 [details]
radeontool regs while kms working and second display is not
Created attachment 56281 [details]
radeontool regmatch while no kms and both displays working
Created attachment 56283 [details]
radeontool regmatch while kms is working and second display is not
during time when i grabbed this data for kms configration and no kms i set xrandr to dual screen display, in both cases i could move mouse on the other screen but in kms case i dont see that because my second monitor is off
Can you attach the output of xrandr --verbose with both kms and ums? There are two 1680x1050 modes in the EDID: 1. 1680x1050 @ 146.25 Mhz [ 117.660] (II) RADEON(0): #2: hsize: 1680 vsize 1050 refresh: 60 vid: 179 [ 117.661] (II) RADEON(0): Modeline "1680x1050"x60.0 146.25 1680 1784 1960 2240 1050 1053 1059 1089 -hsync +vsync (65.3 kHz) 2. 1680x1050 @ 119.00 Mhz [ 117.660] (II) RADEON(0): clock: 119.0 MHz Image Size: 474 x 296 mm [ 117.660] (II) RADEON(0): h_active: 1680 h_sync: 1728 h_sync_end 1760 h_blank_end 1840 h_border: 0 [ 117.660] (II) RADEON(0): v_active: 1050 v_sync: 1053 v_sync_end 1059 v_blanking: 1080 v_border: 0 [ 117.661] (II) RADEON(0): Modeline "1680x1050"x59.9 119.00 1680 1728 1760 1840 1050 1053 1059 1080 +hsync -vsync (64.7 kHz) The 119Mhz mode is the monitor's preferred mode. The problem seems to be the monitor doesn't seem to care for the 146.25Mhz mode while the 119Mhz mode works fine. For some reason UMS doesn't add the 146.25Mhz mode (possibly the xserver doesn't add 1680x1050 modes in the standard timing block); with KMS, the kernel parses the EDID and adds the 146.25Mhz mode. Does switching to a different mode on the problematic display fix it? Created attachment 56405 [details] [review] xrandr verbose for kms non standard 1024x768 mode - one display works only xrandr verbose for kms non standard 1024x768 mode - one display works only - i tried that change of resolution can help with something i dont see change here Created attachment 56406 [details] [review] xrandr verbose for kms 1680x1050 normal resolution - one display works only Created attachment 56409 [details] [review] xrandr verbose for non kms 1680x1050 both display working Any additional help i can give? Ping? Does switching between the 1680x1050 modes on the problematic monitor help? xrandr --output DVI-0 --mode 0x54 xrandr --output DVI-0 --mode 0x53 or xrandr --output DVI-1 --mode 0x54 xrandr --output DVI-1 --mode 0x53 > There are two 1680x1050 modes in the EDID: > > 1. 1680x1050 @ 146.25 Mhz > 2. 1680x1050 @ 119.00 Mhz This modes are that what was mentioned before? This are both this modes(0x53,0x54)? As far i remember that changing it didn`t give any results but i`ll check again today. (In reply to comment #19) > > There are two 1680x1050 modes in the EDID: > > > > 1. 1680x1050 @ 146.25 Mhz > > 2. 1680x1050 @ 119.00 Mhz > > This modes are that what was mentioned before? This are both this > modes(0x53,0x54)? As far i remember that changing it didn`t give any results > but i`ll check again today. yes. The only difference in the register dump was the mode timing. KMS was using the 146.25 Mhz mode while UMS was using the 119.00 Mhz mode. If switching doesn't help can you dump the registers with KMS for both the 146.25 Mhz mode and the 119.00 Mhz modes to make sure that the changes are actually getting to the kernel driver? ok i`ll check this thanks, i attach comment what i get as soon as i will be at home Created attachment 61751 [details]
regmatch results in 0x53 mode
Created attachment 61752 [details]
regmatch results in 0x54 mode
> > There are two 1680x1050 modes in the EDID:
> >
> > 1. 1680x1050 @ 146.25 Mhz
> > 2. 1680x1050 @ 119.00 Mhz
There are no difference between both modes.
In both only first monitor is active and second is in no signal state.
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Created attachment 55608 [details] logs from x start with and without KMS I use : Linux zx6000 2.6.32-5-mckinley #1 SMP Mon Oct 3 06:04:14 UTC 2011 ia64 GNU/Linux and : xrandr program version 1.3.3 Server reports RandR version 1.3 and : ii xorg 1:7.6+8~bpo60+1 X.Org X Window System ii xorg-docs 1:1.5-1 Miscellaneous documentation for the X.org X Window System ii xorg-docs-core 1:1.5-1 Core documentation for the X.org X Window System ii xserver-xorg 1:7.6+8~bpo60+1 X.Org X server ii xserver-xorg-core 2:1.10.4-1~bpo60+1 Xorg X server - core server ii xserver-xorg-input-all 1:7.5+8+squeeze1 the X.Org X server -- input driver metapackage ii xserver-xorg-input-evdev 1:2.6.0-2~bpo60+1 X.Org X server -- evdev input driver ii xserver-xorg-input-mouse 1:1.7.1-1~bpo60+1 X.Org X server -- mouse input driver ii xserver-xorg-input-synaptics 1.4.1-1~bpo60+1 Synaptics TouchPad driver for X.Org server ii xserver-xorg-input-wacom 0.10.10+20110203-1~bpo60+1 X.Org X server -- Wacom input driver ii xserver-xorg-video-all 1:7.6+8~bpo60+1 X.Org X server -- output driver metapackage ii xserver-xorg-video-apm 1:1.2.3-2~bpo60+1 X.Org X server -- APM display driver ii xserver-xorg-video-ark 1:0.7.3-2~bpo60+1 X.Org X server -- ark display driver ii xserver-xorg-video-ati 1:6.14.2-1~bpo60+1 X.Org X server -- AMD/ATI display driver wrapper ii xserver-xorg-video-chips 1:1.2.4-1~bpo60+1 X.Org X server -- Chips display driver ii xserver-xorg-video-cirrus 1:1.3.2-4~bpo60+1 X.Org X server -- Cirrus display driver ii xserver-xorg-video-fbdev 1:0.4.2-4~bpo60+1 X.Org X server -- fbdev display driver ii xserver-xorg-video-i128 1:1.3.4-2~bpo60+1 X.Org X server -- i128 display driver ii xserver-xorg-video-i740 1:1.3.2-4~bpo60+1 X.Org X server -- i740 display driver ii xserver-xorg-video-mach64 6.9.0-1~bpo60+1 X.Org X server -- ATI Mach64 display driver ii xserver-xorg-video-mga 1:1.4.13.dfsg-3~bpo60+1 X.Org X server -- MGA display driver ii xserver-xorg-video-neomagic 1:1.2.5-2~bpo60+1 X.Org X server -- Neomagic display driver ii xserver-xorg-video-r128 6.8.1-5~bpo60+1 X.Org X server -- ATI r128 display driver ii xserver-xorg-video-radeon 1:6.14.2-1~bpo60+1 X.Org X server -- AMD/ATI Radeon display driver ii xserver-xorg-video-rendition 1:4.2.4-2~bpo60+1 X.Org X server -- Rendition display driver ii xserver-xorg-video-s3 1:0.6.3-4~bpo60+1 X.Org X server -- legacy S3 display driver ii xserver-xorg-video-s3virge 1:1.10.4-4~bpo60+1 X.Org X server -- S3 ViRGE display driver ii xserver-xorg-video-savage 1:2.3.2-3~bpo60+1 X.Org X server -- Savage display driver ii xserver-xorg-video-siliconmotion 1:1.7.5-1~bpo60+1 X.Org X server -- SiliconMotion display driver ii xserver-xorg-video-sis 1:0.10.3-3~bpo60+1 X.Org X server -- SiS display driver ii xserver-xorg-video-tdfx 1:1.4.3-4~bpo60+1 X.Org X server -- tdfx display driver ii xserver-xorg-video-trident 1:1.3.4-2~bpo60+1 X.Org X server -- Trident display driver ii xserver-xorg-video-tseng 1:1.2.4-2~bpo60+1 X.Org X server -- Tseng display driver ii xserver-xorg-video-vesa 1:2.3.0-7~bpo60+1 X.Org X server -- VESA display driver and : Screen 0: minimum 320 x 200, current 3360 x 1050, maximum 4096 x 4096 DVI-0 connected 1680x1050+0+0 (normal left inverted right x axis y axis) 474mm x 296mm 1680x1050 59.9*+ 60.0 1280x1024 75.0 60.0 1152x864 75.0 1024x768 75.1 60.0 800x600 75.0 60.3 640x480 75.0 60.0 720x400 70.1 DVI-1 connected 1680x1050+1680+0 (normal left inverted right x axis y axis) 474mm x 296mm 1680x1050 59.9*+ 60.0 1280x1024 75.0 60.0 1152x864 75.0 1024x768 75.1 60.0 800x600 75.0 60.3 640x480 75.0 60.0 720x400 70.1 and lspci: 80:00.0 VGA compatible controller: ATI Technologies Inc Radeon R300 NG [FireGL X1] (rev 80) 80:00.1 Display controller: ATI Technologies Inc Radeon R300 [FireGL X1] (Secondary) (rev 80) Decription: I use dual display. I have two identical DELL P2210 monitors connected using DVI. When i switch to KMS driver my second display doesn`t work i get blank screen. I use HP ZX6000 Workstation with AGP Radeon FireGL X1 graphic (dual head). xrandr --output SECOND_DISPLAY -off xrandr --output SECOND_DISPLAY -auto doesn`t help neither doing anyting like : xrandr --output FIRST_DISPLAY --auto --output SECOND_DISPLAY --auto --rightof FIRST_DISPLAY Problem seems to be related with KMS driver only.