Re: [Intel-gfx] Specific resolution without monitor
Hey Carl,
I had the same problem as you.
So i wanted my MediaCenter to start up at for example 15h just before i get
home. But since my TV and my AV receiver where in standby the resolution
detected by the drm driver as always wrong. So to by pass this i have changed a
bit intel drm driver and hard coded my TV EDID data directly into the driver.
This ways every time the MC starts up it thinks is connected to the PC and
setups the right resolution.
Now this is not a simple thing to do since you will need to compile the linux
kernel, you can also only compile the drm driver/module for sure but i dont
know how to do that
So what i did was, with some linux software, named edid grab or read or
something, i extracted my TV edid in HEX format. Then i changed the function
drm_do_get_edid inside the drm_edid.c file located at the linux
kernel/drivers/gpu/drm/ to ignore the i2c bus and to use the edid i defined
inside my block1 byte array. Also needed to comment out some code, since EDID
something comes in multiple messages. Below you can find my modifications.
I hope this help you out. Maybe this is not the right way of doing it, but it
worked for me. I´m not and expert on DRM or I915 driver, just wanted to make it
worked so i hard coded it all. You can always improve and maybe add the
function of reading the EDID from a file like the NVIDIA driver has.
static u8 *drm_do_get_edid(struct drm_connector *connector, struct i2c_adapter
*adapter){ int i, j = 0, valid_extensions = 0; u8 *block, *new;
u8 block1[256] =
{0x00,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x34,0xa9,0xa4,0xa0,0x01,0x01,0x01,0x01,
0x00,0x14,0x01,0x03,0x80,0x00,0x00,0x78,0x0a,0xda,0xff,0xa3,0x58,0x4a,0xa2,0x29,
0x17,0x49,0x4b,0x00,0x00,0x00,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,
0x01,0x01,0x01,0x01,0x01,0x01,0x02,0x3a,0x80,0xd0,0x72,0x38,0x2d,0x40,0x10,0x2c,
0x45,0x80,0xba,0x88,0x21,0x00,0x00,0x1e,0x02,0x3a,0x80,0x18,0x71,0x38,0x2d,0x40,
0x58,0x2c,0x45,0x00,0xba,0x88,0x21,0x00,0x00,0x1e,0x00,0x00,0x00,0xfc,0x00,0x50,
0x61,0x6e,0x61,0x73,0x6f,0x6e,0x69,0x63,0x2d,0x54,0x56,0x0a,0x00,0x00,0x00,0xfd,
0x00,0x17,0x3d,0x0f,0x44,0x0f,0x00,0x0a,0x20,0x20,0x20,0x20,0x20,0x20,0x01,0xd3,
0x02,0x03,0x36,0x72,0x50,0x9f,0x90,0x14,0x05,0x20,0x13,0x04,0x12,0x03,0x11,0x02,
0x16,0x07,0x15,0x06,0x01,0x23,0x09,0x07,0x01,0x78,0x03,0x0c,0x00,0x10,0x00,0xb8,
0x26,0x2f,0xc0,0x0a,0x81,0x49,0xff,0xfc,0x06,0x16,0x08,0x00,0x18,0x00,0x00,0x00,
0x00,0x00,0xe3,0x05,0x1f,0x01,0x01,0x1d,0x80,0xd0,0x72,0x1c,0x16,0x20,0x10,0x2c,
0x25,0x80,0xba,0x88,0x21,0x00,0x00,0x9e,0x01,0x1d,0x80,0x18,0x71,0x1c,0x16,0x20,
0x58,0x2c,0x25,0x00,0xba,0x88,0x21,0x00,0x00,0x9e,0x01,0x1d,0x00,0xbc,0x52,0xd0,
0x1e,0x20,0xb8,0x28,0x55,0x40,0xba,0x88,0x21,0x00,0x00,0x1e,0x01,0x1d,0x00,0x72,
0x51,0xd0,0x1e,0x20,0x6e,0x28,0x55,0x00,0xba,0x88,0x21,0x00,0x00,0x1e,0x00,0xb6};
//if ((block = kmalloc(EDID_LENGTH, GFP_KERNEL)) == NULL) //
return NULL;
if ((block = kmalloc(EDID_LENGTH*2, GFP_KERNEL)) == NULL)
return NULL;
/* base block fetch */ //for (i = 0; i 4; i++) { //
if (drm_do_probe_ddc_edid(adapter, block, 0, EDID_LENGTH)) //
goto out; // if (drm_edid_block_valid(block))//
break; // if (i == 0 drm_edid_is_zero(block, EDID_LENGTH)) { //
connector-null_edid_counter++; // goto carp; //
} //} //if (i == 4) // goto carp;
//DRM_DEBUG_KMS(DUMP EDID START\n); //for(i = 0 ; i EDID_LENGTH;
i += 16 )//
DRM_DEBUG_KMS(0x%x,0x%x,0x%x,0x%x,0x%x,0x%x,0x%x,0x%x,0x%x,0x%x,0x%x,0x%x,0x%x,0x%x,0x%x,0x%x\n,block[i],block[i+1],block[i+2],block[i+3],block[i+4],block[i+5],block[i+6],block[i+7],block[i+8],block[i+9],block[i+10],block[i+11],block[i+12],block[i+13],block[i+14],block[i+15]);
//DRM_DEBUG_KMS(\nDUMP EDID END\n);
DRM_DEBUG_KMS(Overwriting EDID\n);//DRM_DEBUG_KMS(EDID_LENGTH:
%d\n,EDID_LENGTH);
for(i = 0; i 256; i++)block[i]=block1[i];
return block;
/* if there's no extensions, we're done */ if (block[0x7e] == 0)
return block;
new = krealloc(block, (block[0x7e] + 1) * EDID_LENGTH, GFP_KERNEL);
if (!new) goto out; block = new;
for (j = 1; j = block[0x7e]; j++) {for (i = 0; i 4; i++)
{ if (drm_do_probe_ddc_edid(adapter,
block + (valid_extensions + 1) * EDID_LENGTH,
j, EDID_LENGTH)) goto out;
if (drm_edid_block_valid(block + (valid_extensions +
[Intel-gfx] [intel-gfx] i915 - AV receiver reports no RGB input, colors look strange
Hello all, Once more i came to you guys, requesting help for a problem on the i915 drivers. For testing the new interlace mode on kernel 3.3.0-RC1+, i compiled the kernel source. But when running it the colors on the TV look strange. Maybe some one can see some strange stuff on my intel register, when running at 1080p 50hz. Here is the diff between a bad (strange colors on TV/ AV says no RGB mode) and a good mode from kernel 3.0.0-12-generic ubuntu root@SERVER:/# diff bad.txt good.txt 34c34 DSPASURF: 0x0104d000--- DSPASURF: 0x0084c00070c70 PCH_DREF_CONTROL: 0x0400 (cpu source disable, ssc_source disable, nonspread_source enable, superspread_source disable, ssc4_mode downspread, ssc1 disable, ssc4 disable)--- PCH_DREF_CONTROL: 0x1402 (cpu source disable, ssc_source enable, nonspread_source enable, superspread_source disable, ssc4_mode downspread, ssc1 enable, ssc4 disable) Thanks,--Paulo Louro ___ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/intel-gfx
Re: [Intel-gfx] [Working on 3.0.0-12] RGB Problem with Intel i915 driver, i3 2010T, RGB color output over HDMI
Hello all again, This problem is new to kernel 3.2.0-rc6, here is the diff between the bad and good register dump. I tried to correct the register but without any luck... Marked with is not working kernel 3.2.0Marked with works. kernel 3.0.0-12 / also works fine in LiveCD of Ubuntu 11.10 GEN6_INSTDONE_1: 0xGEN6_INSTDONE_2: 0x---GEN6_INSTDONE_1: 0xfffe GEN6_INSTDONE_2: 0x31c31 DSPACNTR: 0xd8004000 (enabled)--- DSPACNTR: 0xd8004400 (enabled)34c34 DSPASURF: 0x00064000--- DSPASURF: 0x0665d00070c70 PCH_DREF_CONTROL: 0x0400 (cpu source disable, ssc_source disable, nonspread_source enable, superspread_source disable, ssc4_mode downspread, ssc1 disable, ssc4 disable)--- PCH_DREF_CONTROL: 0x1400 (cpu source disable, ssc_source enable, nonspread_source enable, superspread_source disable, ssc4_mode downspread, ssc1 disable, ssc4 disable)79,80c79,80 PCH_FPA0: 0x00021007 (n = 2, m1 = 16, m2 = 7) PCH_FPA1: 0x00021007 (n = 2, m1 = 16, m2 = 7)--- PCH_FPA0: 0x00c21007 (n = 2, m1 = 16, m2 = 7) PCH_FPA1: 0x00c21007 (n = 2, m1 = 16, m2 = 7) From: paulo_lo...@msn.com To: intel-gfx@lists.freedesktop.org Subject: RE: [Intel-gfx] RGB Problem with Intel i915 driver, i3 2010T, RGB color output over HDMI Date: Tue, 24 Jan 2012 15:24:04 + Hello all, This e-mail is a continuation of my previews one regarding HDMI modeline output problems. So far with the help of Rodrigo Vivi i have manage to output the 1920x1080p@60hz mode over HDMI to my AV receiver. (To fix my previews problem i inserted the EDID frame directly inside drm_edid.c file. So i dont read EDID from the AV i2c bus anymore. So the mode is always set correctly.) The issue now is that the AV reports that the signal is not in RGB mode and the image shows some strange colors, specially on the white color (showing like greens). Does any one has any idea if this is a problem on the EDID or inside drm/i915? All comments and help are very appreciated.-- Paulo Louro ___ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/intel-gfx
Re: [Intel-gfx] [PROBLEM FOUND] Problem No HDMI when AV/TV in standby mode
An update on this issue. The registers VSYNCSHIFT PIPEACONF and TRANSACONF are been set to interlace mode at GRUB startup. Test: Boot computer with AV/TV in standby.Force GRUB to show menu selection.Turn on AV/TV and select PC HDMI while in GRUB menu.GRUB shows up with 1080i 50hz. So is it GRUB setting the mode or the BIOS? This may happen to me since my AV is telling via EDID that the preferred mode is interlaced? -- Paulo Louro Date: Tue, 24 Jan 2012 23:28:36 +0100 From: dan...@ffwll.ch To: paulo_lo...@msn.com CC: intel-gfx@lists.freedesktop.org Subject: Re: [Intel-gfx] [PROBLEM FOUND] Problem No HDMI when AV/TV in standby mode On Tue, Jan 24, 2012 at 10:03:57PM +, paulo louro wrote: Very ugly hack, In file --- intel_display.c function --- ironlake_crtc_mode_set temp = I915_READ(_TRANSACONF); I915_WRITE(_TRANSACONF, temp ~(721)); I915_WRITE( 0x60028, 0x); //VSYNCSHIFT_A— Vertical Sync Shift Register This register needs to be 0x for progressive mode I915_WRITE(PIPECONF(pipe), pipeconf); POSTING_READ(PIPECONF(pipe)); In file --- i915_reg.h #define PIPECONF_INTERLACE_W_FIELD_INDICATION(7 21) // ( 6 21) Not sure why the PIPECONF MASK is 110 and not 111, from intel pdf 000b Progressive Fetch / Progressive display / 001b PF-ID Progressive Fetch / Interlaced display (HDMI) Requires panel fitting to be enabled Wohoo, this is awesome. Can you maybe go right ahead and create a patch for this? Should be nothing more than checking for an interlaced mode and banging the right values into these registers ... Yours, Daniel -- Daniel Vetter Mail: dan...@ffwll.ch Mobile: +41 (0)79 365 57 48 ___ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/intel-gfx
Re: [Intel-gfx] RGB Problem with Intel i915 driver, i3 2010T, RGB color output over HDMI
Hello all, This e-mail is a continuation of my previews one regarding HDMI modeline output problems. So far with the help of Rodrigo Vivi i have manage to output the 1920x1080p@60hz mode over HDMI to my AV receiver. (To fix my previews problem i inserted the EDID frame directly inside drm_edid.c file. So i dont read EDID from the AV i2c bus anymore. So the mode is always set correctly.) The issue now is that the AV reports that the signal is not in RGB mode and the image shows some strange colors, specially on the white color (showing like greens). Does any one has any idea if this is a problem on the EDID or inside drm/i915? All comments and help are very appreciated.-- Paulo Louro ___ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/intel-gfx
Re: [Intel-gfx] [PROBLEM FOUND] Problem No HDMI when AV/TV in standby mode
Very ugly hack, In file --- intel_display.c function --- ironlake_crtc_mode_set temp = I915_READ(_TRANSACONF); I915_WRITE(_TRANSACONF, temp ~(721)); I915_WRITE( 0x60028, 0x); //VSYNCSHIFT_A— Vertical Sync Shift Register This register needs to be 0x for progressive mode I915_WRITE(PIPECONF(pipe), pipeconf); POSTING_READ(PIPECONF(pipe)); In file --- i915_reg.h #define PIPECONF_INTERLACE_W_FIELD_INDICATION(7 21) // ( 6 21) Not sure why the PIPECONF MASK is 110 and not 111, from intel pdf 000b Progressive Fetch / Progressive display / 001b PF-ID Progressive Fetch / Interlaced display (HDMI) Requires panel fitting to be enabled Next will be to solve the RGB problem i have. From: paulo_lo...@msn.com To: intel-gfx@lists.freedesktop.org Date: Tue, 24 Jan 2012 20:38:57 + Subject: Re: [Intel-gfx] [PROBLEM FOUND] Problem No HDMI when AV/TV in standby mode Hello all, I think i have found why there is a problem with my Onkyo AV when the TV/AV are in standby mode. I run the following test. Boot PC with AV/TV in standby and dump intel registers to a file TEST1Boot PC with AV/TV on and dump intel register to file TEST2Using the diff to find the difference between both files i found the following: root@SERVER:~# diff test1 test214c14 PIPEACONF: 0xc020 (enabled, active, 8bpc)--- PIPEACONF: 0xc000 (enabled, active, 8bpc)21c21 VSYNCSHIFT_A: 0x038c--- VSYNCSHIFT_A: 0x125c125 TRANSACONF: 0xc060 (enable, active)--- TRANSACONF: 0xc000 (enable, active) So register PIPEACONF, VSYNCSHIFT_A and TRANSACONF are different. By checking intel documentation i found that this registers are responsibly for setting up the progressive/interleave mode. As so im thinking that this registers are not being reinitialize or cleaned. Is this possible? Since im up for one more test i used intel_reg_read/write to modified the registers and correct the values, to my surprise after writing to all the register the AV shows my desktop correctly. My other question is if they need to be reinitialized where in the code shall this be done? I'm up for writing a small patch to fix this issue, just need some one to point me on the right direction. Thanks--Paulo Louro ___ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/intel-gfx ___ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/intel-gfx
[Intel-gfx] Problem Intel i915 driver, i3 2010T, HDMI output modes problems
clock 67.5KHzv: height 1080 start 1084 end 1089 total 1125 clock 60.0Hz 1920x1080 (0xb9) 148.5MHz +HSync +VSync +preferredh: width 1920 start 2448 end 2492 total 2640 skew0 clock 56.2KHzv: height 1080 start 1084 end 1089 total 1125 clock 50.0Hz 1920x1080 (0xba) 148.5MHz +HSync +VSynch: width 1920 start 2008 end 2052 total 2200 skew0 clock 67.5KHzv: height 1080 start 1084 end 1089 total 1125 clock 60.0Hz 720x576 (0x43) 27.0MHzh: width 720 start 732 end 796 total 864 skew0 clock 31.2KHzv: height 576 start 581 end 586 total 625 clock 50.0Hz If i select for example mode 0xb9 or 0xba, i lose the image (splitted image of gnome), and get a black screen. Once more for 50hz the AV-Receiver reports 100Hz and for 60Hz reports 120Hz. This is like somehow the modes are being multiplied all the time by a factor of 2. I also have tried to use i915.modeset=0 on grub. This makes Xorg fail to start saying that no monitor was detected, then i can rmmod i915 and modprobe i915 modeset = 1, service lightdm start. And we are back again with the same problem.. What ever if i leave my TV and Receiver ON and turn on the PC, then everything works without a problem. The idea is to boot ubuntu that in this case is my Home Server, and leave it running since morning. Then when comming home the PC is already booted and into XBMC ready for my Girlfriend to watch some TV over XBMC liveTV From the start i thank you for your time.--Paulo Louro ___ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/intel-gfx
