<div dir="ltr"><p class="gmail-_1qeIAgB0cPwnLhDF9XSiJM" style="margin:0px;padding:0px 0px 0.25em;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:"Noto Sans",Arial,sans-serif;vertical-align:baseline;color:rgb(26,26,27)">I am having the following configuration</p><p class="gmail-_1qeIAgB0cPwnLhDF9XSiJM" style="margin:0px;padding:0.8em 0px 0.25em;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:"Noto Sans",Arial,sans-serif;vertical-align:baseline;color:rgb(26,26,27)">Xlib app-> Xserver -> Framebuffer(ARGB) . When I try to run some Xlib application nothing is visible in the display.</p><p class="gmail-_1qeIAgB0cPwnLhDF9XSiJM" style="margin:0px;padding:0.8em 0px 0.25em;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:"Noto Sans",Arial,sans-serif;vertical-align:baseline;color:rgb(26,26,27)">At the same time when I used dev2mem and punch the data to the framebuffer memory, I could see the display without issue.</p><p class="gmail-_1qeIAgB0cPwnLhDF9XSiJM" style="margin:0px;padding:0.8em 0px 0.25em;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:"Noto Sans",Arial,sans-serif;vertical-align:baseline;color:rgb(26,26,27)">When I specify the format of the framebuffer (565) I could see the GUI in the screen but a convoluted data. But some GUI is shown.</p><p class="gmail-_1qeIAgB0cPwnLhDF9XSiJM" style="margin:0px;padding:0.8em 0px 0.25em;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:"Noto Sans",Arial,sans-serif;vertical-align:baseline;color:rgb(26,26,27)"><span class="gmail-_12FoOEddL7j_RgMQN0SNeU" style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:700;font-stretch:inherit;font-size:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline">My observation.</span></p><ol class="gmail-_1eJr7K139jnMstd4HajqYP" style="margin:4px 0px 4px 8px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:"Noto Sans",Arial,sans-serif;vertical-align:baseline;list-style-position:outside;color:rgb(26,26,27)"><li class="gmail-_3gqTEjt4x9UIIpWiro7YXz" style="margin:0.4em 1em;padding:0px;border:0px;font:inherit;vertical-align:baseline"><p class="gmail-_1qeIAgB0cPwnLhDF9XSiJM" style="margin:0px;padding:0px;border:0px;font:inherit;vertical-align:baseline">When I dumb the memory and check I could see the alpha channel byte is 0, That means they are switched off by default.</p></li><li class="gmail-_3gqTEjt4x9UIIpWiro7YXz" style="margin:0.4em 1em;padding:0px;border:0px;font:inherit;vertical-align:baseline"><p class="gmail-_1qeIAgB0cPwnLhDF9XSiJM" style="margin:0px;padding:0px;border:0px;font:inherit;vertical-align:baseline">When I send the data using devmem I could see the alpha channel enabled.</p></li></ol><p class="gmail-_1qeIAgB0cPwnLhDF9XSiJM" style="margin:0px;padding:0.8em 0px 0.25em;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:"Noto Sans",Arial,sans-serif;vertical-align:baseline;color:rgb(26,26,27)"><span class="gmail-_12FoOEddL7j_RgMQN0SNeU" style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:700;font-stretch:inherit;font-size:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline">My question</span></p><p class="gmail-_1qeIAgB0cPwnLhDF9XSiJM" style="margin:0px;padding:0.8em 0px 0.25em;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:"Noto Sans",Arial,sans-serif;vertical-align:baseline;color:rgb(26,26,27)">1.Is it possible that Xserver does not support alpha channel?.</p><p class="gmail-_1qeIAgB0cPwnLhDF9XSiJM" style="margin:0px;padding:0.8em 0px 0.25em;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:"Noto Sans",Arial,sans-serif;vertical-align:baseline;color:rgb(26,26,27)">2.If it supports how should I enable it.</p><p class="gmail-_1qeIAgB0cPwnLhDF9XSiJM" style="margin:0px;padding:0.8em 0px 0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:"Noto Sans",Arial,sans-serif;vertical-align:baseline;color:rgb(26,26,27)">3.Can someone point me to a application which can generate ARGB data.</p></div>